511 MTU generator fault/alarm codes with symptom, cause and remedy — compiled from MTU service and controller documentation.
| Code | Meaning / symptom | Cause | Remedy |
|---|---|---|---|
| 003 | HI T-Fuel — Limit value 1 | Fuel temperature too high. | Contact Service. |
| 3 | HI T-Fuel — Yellow alarm; warning | Fuel temperature too high. | Reduce power. |
| 3 | Fuel temperature too high. | > Reduce power. | |
| 3 | Engine kW Overload | ||
| 004 | SS T-Fuel — Limit value 2 | Fuel temperature too high; engine shutdown. | Contact Service. |
| 4 | SS T-Fuel (Limit 2) — Red alarm; power limitation = 20%; forced idle | Fuel temperature too high. | Acknowledge alarm.; Request towing locomotive if required. |
| 005 | HI T-Charge Air — Limit value 1 | Charge-air temperature too high. | Reduce power; Check intercooler. |
| 5 | HI T-Charge Air — Yellow alarm; warning | Charge-air temperature too high. | Reduce power.; If fault code number 9 is signaled at the same time, then it has priority. |
| 5 | Charge-air temperature too high. | 1. Reduce power. 2. If fault code number 9 is signaled at the same time, then it has priority. | |
| 006 | SS T-Charge Air — Limit value 2 | Charge-air temperature too high; engine shutdown. | Reduce power; Check intercooler. |
| 6 | SS T-Charge Air (Limit 2) — Yellow alarm; power limitation < 20% | Charge-air temperature too high. | Reduce power.; If fault code number 9 is signaled at the same time, then it has priority. |
| 009 | HI T-Coolant Intercooler — Limit value 1 | Coolant temperature in intercooler too high. | Reduce power. |
| 009 | AL L1 T-Coolant Intercooler — Preliminary warning: coolant temperature in intercooler too low. | Reduce power. | |
| 9 | HI L1 T-Coolant Intercooler — Yellow alarm; warning | Coolant temperature in intercooler too high. | Reduce power.; Check engine lines for leaks. Check coolant cooler for leaks, contamination and operation. |
| 9 - HI L1 T-Coolant Intercooler | Coolant temperature in intercooler too high. | 1. Reduce power. 2. Check engine lines for leaks. Check coolant cooler for leaks, contamination and operation. | |
| 010 | SS T-Coolant Intercooler — Limit value 2 | Coolant temperature in intercooler too high; engine shutdown. | Reduce power. |
| 010 | AL L2 T-Coolant Intercooler — Main warning: charge-air coolant temperature too high; engine stop. | Reduce power. | |
| 10 | SS T-Coolant Intercooler (Limit 2) — Yellow alarm; power limitation < 20% | Coolant temperature in intercooler too high. | Reduce power.; Check engine lines for leaks. Check coolant cooler for leaks, contamination and operation.; Contact Service. |
| 015 | LO P-Lube Oil — Limit value 1 | Lube oil pressure too low. | Check oil level, top up as necessary (→ Page 169). |
| 015 | AL L1 T-Coolant Intercooler | ||
| 15 | LO P-Lube Oil — Yellow alarm; warning | Lube oil pressure too low. | Check oil level, top up as necessary (Page 87). |
| 15 | Lube oil pressure too low. | > Check oil level, top up as necessary (— Page 87). | |
| 016 | SS P-Lube Oil — Limit value 2 | Lube oil pressure too low; engine shutdown. | Check oil level, top up as necessary (→ Page 169); Attempt to restart engine (→ Page 55). |
| 16 | SS P-Lube Oil (Limit 2) — Red alarm; engine stop | Lube oil pressure too low. | Check oil level, top up as necessary (Page 87).; Acknowledge alarm.; Restart engine (Page 27).; Request towing locomotive if required. |
| 019 | HI T-Exhaust A — Limit value 1 | Exhaust gas temperature (A-side) too high. | Check cabling (→ Page 194); Contact Service. |
| 19 | HI T-Exhaust A — Yellow alarm; warning | Exhaust gas temperature (A-side) too high. | Reduce power.; Check air filter.; Request towing locomotive if required. |
| 19 | Exhaust gas temperature (A-side) too high. | 1. Reduce power. 2. Check air filter. 3. Request towing locomotive if required. | |
| 020 | SS T-Exhaust A — Limit value 2 | Exhaust gas temperature (A-side) too high; engine shutdown. | Check cabling (→ Page 194); Contact Service. |
| 20 | SS T-Exhaust A — Red alarm; power reduction = 20% | Exhaust gas temperature (A-side) too high. | Reduce power.; Check air filter.; Request towing locomotive if required. |
| 021 | HI T-Exhaust B — Limit value 1 | Exhaust gas temperature (B-side) too high. | Check cabling (→ Page 194); Contact Service. |
| 21 | HI T-Exhaust B — Yellow alarm; warning | Exhaust gas temperature (B-side) too high. | Reduce power.; Check air filter.; Request towing locomotive if required. |
| 022 | SS T-Exhaust B — Limit value 2 | Exhaust gas temperature (B-side) too high; engine shutdown. | Check cabling (→ Page 194); Contact Service. |
| 22 | SS T-Exhaust B — Red alarm; power reduction = 20% | Exhaust gas temperature (B-side) too high. | Reduce power.; Check air filter.; Request towing locomotive if required. |
| 22 | Exhaust gas temperature (B-side) too high. | 1. Reduce power. 2. Check air filter. 3. Request towing locomotive if required. | |
| 023 | LO Coolant Level — Limit value 1 | Coolant level too low. | Check coolant level in expansion tank (→ Page 176). |
| 024 | SS Coolant Level — Alarm configuration limit value 2; coolant level too low. | Check coolant level in expansion tank (→ Page 153). | |
| 025 | HI P-Diff. Lube Oil — Limit value 1 | Oil filter differential pressure too high. | Replace oil filter (→ Page 173). |
| 25 | HI P-Diff-Lube Oil — Yellow alarm; warning | Differential pressure at oil filter too high. | Replace oil filter (Page 89). |
| 25 | Differential pressure at oil filter too high. | 1. Replace oil filter (> Page 89). 2. Request towing locomotive if required. | |
| 026 | HI P-Diff. Lube Oil — Limit value 2 | Oil filter differential pressure too high. | Replace oil filter (→ Page 173). |
| 26 | SS P-Diff-Lube Oil — Red alarm; power reduction = 20% | Differential pressure at oil filter too high. | Replace oil filter (Page 89).; Request towing locomotive if required. |
| 027 | HI Leak Fuel Level — Limit value 1 | Leak-fuel level too high. | Check fuel system; Contact Service. |
| 27 | Undervoltage | ||
| 27-1 | Trip Alarm | ||
| 27-2 | Trip Alarm | ||
| 029 | HI ETC 2 idle speed | Idle speed of ETC 2 too high. | Contact Service. |
| 030 | SS Engine Speed — Limit value 2 | Reduced fuel injection. | Acknowledge alarm; Attempt to restart engine. |
| 030 | ENGINE OVERSPEED — Engine overspeed; automatic engine shutdown | 1. Acknowledge alarm. 2. Try to re-start the engine (→ Page 57). 3. Contact Service. | |
| 30 | SS Engine Overspeed (Limit 2) — Red alarm; engine stop | Engine speed too high. | Acknowledge alarm.; Request towing locomotive if required. |
| 031 | HI ETC 1 overspeed — Limit value 1 | Speed of primary turbocharger too high. | Contact Service. |
| 31 | HI ETC1 Overspeed (Limit 1) — Yellow alarm; power limitation > 20% | ETC 1 (A-side) speed too high. | Reduce power.; Check air filter.; Check exhaust pipe visually for leaks.; Request towing locomotive if required. |
| 032 | SS ETC 1 overspeed — Limit value 2 | Speed of primary turbocharger too high. | Automatic power reduction by engine control system; Check air filters (→ Page 164). |
| 32 | SS ETC1 Overspeed (Limit 2) — Red alarm; power reduction = 20% | ETC 1 (A-side) speed too high. | Reduce power.; Check air filter.; Check exhaust pipe visually for leaks.; Request towing locomotive if required. |
| 32 | Trip Alarm | ||
| 32 | Reverse Power | ||
| 32R | Reverse Power | ||
| 33 | HI P-Diff-Fuel — Limit value 1 | Fuel filter differential pressure too high. | Replace fuel filter (→ Page 153). |
| 33 | Fuel filter differential pressure too high. | 1. Check fuel filter, replace as necessary. 2. Request towing locomotive if required. | |
| 033 | HI P-Diff-Fuel | Replace fuel filter (— Page 153). | |
| 34 | SS P-Diff-Fuel — Limit value 2 | Fuel filter differential pressure too high. | Replace fuel filter (→ Page 153). |
| 034 | SS P-Diff-Fuel | Replace fuel filter (— Page 153). | |
| 036 | HI ETC 2 Overspeed — Limit value 1 | Speed of first secondary turbocharger too high. | Reduce power; Contact Service. |
| 36 | HI ETC2 Overspeed (Limit 1) — Yellow alarm; power limitation > 20% | ETC 2 (B-side) speed too high. | Reduce power.; Check air filter.; Check exhaust pipe visually for leaks.; Request towing locomotive if required. |
| 037 | SS ETC 2 Overspeed — Limit value 2 | Speed of first secondary turbocharger too high. | Reduce power; Contact Service. |
| 37 | SS ETC2 Overspeed (Limit 2) — Red alarm; power reduction = 20% | ETC 2 (B-side) speed too high. | Reduce power.; Check air filter.; Check exhaust pipe visually for leaks.; Request towing locomotive if required. |
| 038 | AL ETC Speed Deviation | Synchronization fault between primary turbocharger and one of the secondary turbochargers. | Reduce power; Contact Service. |
| 038 | AL ETC Synchro Fault — Synchronization error between ETCs 1 and 2. | 1. Reduce power. 2. Contact Service. | |
| 039 | AL ETC 2 Cutin Failure | ETC 2 failed to cut in. | Reduce power; Contact Service. |
| 40 | Trip Alarm | ||
| 40Q | Loss of Excitation | ||
| 044 | LO Coolant Level Intercooler — Limit value 1 | Intercooler coolant level too low. | Check coolant level (→ Page 184). |
| 044 | L1 LEVEL INTERCOOLER — Charge-air coolant level too low (1st limit value) | Check coolant level and top up, if required (→ Page 161). | |
| 045 | L2 LEVEL INTERCOOLER — Charge-air coolant level too low (2nd limit value) | 1. Check coolant level and top up, if required (→ Page 161). 2. If fault occurs repeatedly: Contact Service. | |
| 47 | Trip Alarm | ||
| 47 | Phase Imbalance | ||
| 47 | Voltage Imbalance | ||
| 051 | HI T-Lube Oil — Limit value 1 | Lube oil temperature too high. | Reduce power. |
| 51 | HI T-Lube Oil — Yellow alarm; warning | Lube oil temperature too high. | Reduce power.; If fault code number 67 is signaled at the same time, then it has priority. |
| 51 | Generator Overcurrent | ||
| 51 | Overcurrent (Optional) | ||
| 51 | Timed Overcurrent | ||
| 51-1 | Trip Alarm | ||
| 51-2 | Trip Alarm | ||
| 51-3 | Trip Alarm | ||
| 052 | SS T-Lube Oil — Limit value 2 | Lube oil temperature too high; engine shutdown. | Reduce power; Check engine oil level (→ Page 169). |
| 52 | SS T-Lube Oil (Limit 2) — Red alarm; power reduction = 20% | Lube oil temperature too high. | Reduce power.; If fault code number 67 is signaled at the same time, then it has priority. |
| 057 | LO P-Coolant — Limit value 1 | Coolant pressure too low. | Check coolant circuit. |
| 058 | SS P-Coolant — Limit value 2 | Coolant pressure too low; engine shutdown or reduction of fuel injection. | Automatic engine shutdown; Check coolant level (→ Page 176). |
| 59 | SS T-Coolant L3 — Limit value 3 | Coolant temperature too high/low. | Allow engine to cool down; Check coolant cooler, clean if necessary; Contact Service. |
| 59 | Overvoltage | ||
| 059 | SS T-Coolant L3 | Allow engine to cool down; Check coolant cooler, clean if necessary. Contact Service. | |
| 59-1 | Trip Alarm | ||
| 59-2 | Trip Alarm | ||
| 60 | SS T-Coolant L4 — Limit value 4 | Coolant temperature too high/low. | Allow engine to cool down; Check coolant cooler, clean if necessary; Contact Service. |
| 060 | SS T-Coolant L4 | Allow engine to cool down; Check coolant cooler, clean if necessary. Contact Service. | |
| 063 | HI P-Crankcase — Limit value 1 | Crankcase pressure too high. | Reduce power; Replace oil separator element (→ Page 138). |
| 63 | HI P-Crank Case — Red alarm; engine stop | Crankcase pressure too high. | Reduce power.; Acknowledge alarm. |
| 064 | SS P-Crankcase — Limit value 2 | Crankcase pressure too high; engine shutdown. | Replace oil separator element (→ Page 138); Contact Service. |
| 64 | SS P-Crank Case (Limit 2) — Red alarm; engine stop | Crankcase pressure too high. | Request towing locomotive if required. |
| 065 | LO P-Fuel — Limit value 1 | Fuel supply pressure too low. | Check fuel lines for leaks; Clean fuel prefilter (→ Page 154); Flush fuel prefilter (→ Page 158); Replace filter element of fuel prefilter (→ Page 160); Replace fuel filter (→ Page 153). |
| 065 | L1 P-FUEL — Fuel supply pressure too low (1st limit value) | 1. Check fuel lines for leaks; repair defective lines. 2. Clean fuel prefilter (→ Page 128). 3. Flush fuel prefilter (→ Page 132). 4. Replace filter element of fuel prefilter (→ Page 134). 5. Replace fuel filter (→ Page 127). 6. If fault is not rectified: Contact Service. | |
| 65 | LO P-Fuel — Yellow alarm; warning | Fuel pressure before HP pump too low. | Check fuel lines for leakage.; Drain fuel prefilter (Page 83).; Replace filter element of fuel prefilter (Page 84).; Replace fuel filter (Page 81). |
| 066 | SS P-Fuel — Limit value 2 | Fuel supply pressure too low; engine shutdown. | Check fuel lines for leaks; Clean fuel prefilter (→ Page 154); Flush fuel prefilter (→ Page 158); Replace filter element of fuel prefilter (→ Page 160); Replace fuel filter (→ Page 153). |
| 066 | L2 P-FUEL — Fuel supply pressure too low (2nd limit value) | 1. Check fuel lines for leaks; repair defective lines. 2. Clean fuel prefilter (→ Page 128). 3. Flush fuel prefilter (→ Page 132). 4. Replace filter element of fuel prefilter (→ Page 134). 5. Replace fuel filter (→ Page 127). 6. If fault is not rectified: Contact Service. | |
| 66 | SS P-Fuel (Low) (Limit 2) — No alarm, fault is entered | Fuel pressure before HP pump too low. Possibly only reduced power is available. | Check fuel lines for leakage.; Drain fuel prefilter (Page 83).; Replace filter element of fuel prefilter (Page 84).; Replace fuel filter (Page 81). |
| 067 | HI T-Coolant — Limit value 1 | Coolant temperature too high. | Reduce power. |
| 067 | L1 T-COOLANT — Coolant temperature too high (1st limit value) warning | Reduce power. Change over to idle and contact Service. | |
| 67 | HI T-Coolant (Limit 1) — Yellow alarm; warning | Coolant temperature too high. | Reduce power.; Check engine coolant cooler, clean if dirty. |
| 068 | SS T-Coolant — Limit value 2 | Coolant temperature too high; engine shutdown. | Allow engine to cool down; Check coolant cooler, clean if necessary; Restart engine (→ Page 59); Contact Service. |
| 068 | L2 T-COOLANT — Coolant temperature too high (2nd limit value); automatic engine shutdown | 1. Allow the engine to cool down. 2. Check coolant cooler (elements etc.) and clean contaminated parts (see manufacturer's documentation). 3. Re-start the engine (→ Page 57). 4. If fault occurs repeatedly: Contact Service. | |
| 68 | SS T-Coolant (Limit 2) — Yellow alarm; power limitation < 20% | Coolant temperature too high. | Activate fan emergency operating mode if required.; Allow engine to cool down.; Check engine coolant cooler, clean if dirty. |
| 069 | L1 T-EXTERN 1 — Violation of first limit for external temperature channel 1 | (Depending on the corresponding measuring point, which is read via CAN bus) | |
| 070 | L2 T-EXTERN 1 — Violation of second limit for external temperature channel 1 | (Depending on the corresponding measuring point, which is read via CAN bus) | |
| 071 | L1 T-EXTERN 2 — Violation of first limit for external temperature channel 2 | (Depending on the corresponding measuring point, which is read via CAN bus) | |
| 072 | L2 T-EXTERN 2 — Violation of second limit for external temperature channel 2 | (Depending on the corresponding measuring point, which is read via CAN bus) | |
| 073 | L1 P-EXTERN 1 — Violation of first limit for external pressure channel 1 | (Depending on the corresponding measuring point, which is read via CAN bus) | |
| 074 | L2 P-EXTERN 1 — Violation of second limit for external pressure channel 1 | (Depending on the corresponding measuring point, which is read via CAN bus) | |
| 075 | L1 P-EXTERN 2 — Violation of first limit for external pressure channel 2 | (Depending on the corresponding measuring point, which is read via CAN bus) | |
| 076 | L2 P-EXTERN 2 — Violation of second limit for external pressure channel 2 | (Depending on the corresponding measuring point, which is read via CAN bus) | |
| 077 | LIM EXT. COOLANT LEV. — Alarm from external coolant level monitoring | (Depending on the corresponding measuring point, which is read via CAN bus) | |
| 078 | LIM INTERCOOLER LEV. — Alarm from external charge-air coolant level monitoring | (Depending on the corresponding measuring point, which is read via CAN bus) | |
| 78 | Vector Shift Trip | ||
| 78 Vector Shift and 81 ROCOF | Loss of Mains Protection | ||
| 079 | L Bin-EXTERN 3 — Alarm from external binary channel 3 | (Depending on the corresponding measuring point, which is read via CAN bus) | |
| 080 | L Bin-EXTERN 4 — Alarm from external binary channel 4 | (Depending on the corresponding measuring point, which is read via CAN bus) | |
| 081 | AL Rail Leakage | Pressure gradient in common rail too low during engine start or too high during engine stop; HP fuel system leaky, air in system. | Contact Service. |
| 81 | ROCOF (Rate of Change of Frequency) (Optional) | ||
| 81 ROCOF | Trip Pre-Alarm | ||
| 81O | Trip Alarm | ||
| 81O | Overfrequency | ||
| 81ROCOF | Rate of Change of Frequency | ||
| 81U | Trip Alarm | ||
| 81U | Underfrequency | ||
| 082 | HI P-Fuel (Common Rail) | Rail pressure > set-point value; DBR reduction, start of injection moved too late; suction restrictor jamming or wiring of suction restrictor faulty. | Contact Service. |
| 082 | RAIL PRESSURE HIGH — Pressure in HP fuel system exceeds specified value; Solenoid valve of HP fuel control block jamming or wiring to solenoid valve defective | Contact Service. | |
| 82 | HI P-Fuel (Common Rail) (Limit 1) (in ADEC L2) — Red alarm; power reduction = 20% | Rail pressure > set value; DBR fuel limitation; start of injection readjusted (retarded); HP fuel control block jamming or wiring faulty. | Contact Service. |
| 083 | LO P-Fuel (Common Rail) | Rail pressure > set-point value; DBR reduction, suction restrictor faulty or leak in HP fuel system. | Contact Service. |
| 083 | RAIL PRESSURE LOW — Pressure in HP fuel system lower than the specified value; HP fuel control block defective or system leaking | Contact Service. | |
| 83 | LO P-Fuel (Common Rail) (Limit 1) — Red alarm; power reduction = 20% | Rail pressure < set value; DBR fuel limitation; HP fuel control block faulty or leakage in HP fuel system. | Request towing locomotive if required.; Contact Service. |
| 084 | HI P-Fuel (Common Rail pressure > reference value; DBR fuel limitation, start of injection readjusted towards late; suction restrictor of HP fuel block jamming or HP fuel control block wiring faulty. | Contact Service. | |
| 085 | HI T-Recirculation — Limit value 1 | Recirculation temperature too high. | Reduce power. |
| 085 | LO P-Fuel (Common Rail pressure < reference value; DBR fuel limitation, start of injection readjusted towards late; suction restrictor of HP fuel block jamming or HP fuel control block wiring faulty. | Contact Service. | |
| 086 | HI T-Recirculation — Limit value 2 | Recirculation temperature too high. | Reduce power. |
| 087 | AL Rail Leakage | Contact Service. | |
| 089 | SS Engine Speed too Low | Engine speed too low. | Check for additional messages. |
| 89 | AL Engine Speed Low (Stall < ~200 RPM) — Red alarm; engine stop | Engine speed too low. | Acknowledge alarm.; Restart engine (Page 27).; Observe additional messages.; Request towing locomotive if required. |
| 090 | SS Starter Speed Not Reached | Idling speed was not attained. | Contact Service. |
| 090 | IDLE SPEED LOW — Idle speed not reached within a specified period; Termination of starting procedure. | Note further alarms. | |
| 090 | SS No Idling Speed | Contact Service. | |
| 90 | SS Idle Speed Not Reached — Yellow alarm; warning | Idle speed not reached. | Check battery.; Check wiring and voltage supply.; Initiate new starting attempt.; Request towing locomotive if required. |
| 091 | SS Release Speed Not Reached | Runup speed was not attained. | Contact Service. |
| 091 | RUN UP SPEED LOW — Run-up speed not reached within a specified period; Termination of starting procedure. | Note further alarms. | |
| 091 | SS No Runup Speed | Contact Service. | |
| 91 | SS Release (Run up) Speed Not Reached (< ~300 RPM) — Yellow alarm; warning | Runup speed not reached. | Check battery.; Check starter.; Initiate new starting attempt.; Request towing locomotive if required. |
| 092 | SS Starter Speed Not Reached | Starter speed was not attained; termination of start sequence; starter rotates too low or not at all. | Contact Service. |
| 092 | START SPEED LOW — Starter speed not reached within a specified period; Termination of starting procedure. | Note further alarms. | |
| 92 | SS Starter Speed Not Reached — Yellow alarm; warning | Starter speed not reached; termination of starting sequence; starter does not turn or turns slowly. | Initiate new starting attempt.; Check voltage at starter power supply.; Request towing locomotive if required. |
| 093 | SS T-Preheat — Limit value 2 | Preheating temperature too low; coolant temperature too low for engine start; engine start interlock. | Check preheater. |
| 093 | PREHEAT TEMP. LIMIT2 — Coolant preheating temperature too low during start (2nd limit value); Termination of starting procedure (depending on project design) | Check preheating pump / preheating system (see manufacturer's documentation). | |
| 93 | SS T-Preheat — No alarm, fault is entered | Preheating temperature too low; coolant temperature too low for engine start. Significantly increased engine wear. Engine start might be inhibited by the locomotive control system. Engine may be started in emergency situations only. | Extend preheating period.; Check preheating unit. |
| 094 | LO T-Preheat — Limit value 1 | Preheating temperature too low; coolant temperature too low for engine start. | Check preheater. |
| 094 | PREHEAT TEMP. LIMIT1 — Coolant preheating temperature too low during start (1st limit value) | Check preheating pump / preheating system (see manufacturer's documentation). | |
| 94 | LO T-Preheat — Yellow alarm; warning | Preheating temperature too low; coolant temperature too low for engine start. Excessive engine wear. Engine start might be inhibited by the locomotive control system. Engine may be started in emergency situations only. | Extend preheating period.; Check preheating unit. |
| 095 | AL Prelubrication Fault | Oil priming failure. | Check oil priming system. |
| 99 | Lube-oil temperature before engine, shutdown | ||
| 100 | EDM NOT VALID — Check sum error of measuring-point data in EDM | If fault occurs repeatedly: Contact Service. | |
| 101 | IDM NOT VALID — Check sum error of measuring-point data in IDM | If fault occurs repeatedly: Contact Service. | |
| 101 | Lube-oil temperature before engine, shutdown | ||
| 102 | AL Consumption Meter Faulty | Consumption meter faulty. | Contact Service. |
| 102 | AL Fuel Cons. Counter Defect — Yellow alarm; warning | Consumption meter faulty. | Replace consumption meter. |
| 102 | INVALID FUEL CONS. 1 — Check sum error of accumulated fuel consumption data in EDM (redundant data record 1) | If fault occurs repeatedly: Contact Service. | |
| 103 | INVALID FUEL CONS. 2 — Check sum error of accumulated fuel consumption data in EDM (redundant data record 2) | If fault occurs repeatedly: Contact Service. | |
| 104 | AL Eng Hours Counter Defect | Hour meter faulty. | Contact Service. |
| 104 | OP HOURS1 NOT VALID — Check sum error of hour meter data in EDM | If fault occurs repeatedly: Contact Service. | |
| 105 | OP HOURS2 NOT VALID — Check sum error of hour meter data in IDM | If fault occurs repeatedly: Contact Service. | |
| 106 | ERR REC1 NOT VALID — Check sum error of fault memory in EDM (redundant data record 1) | If fault occurs repeatedly: Contact Service. | |
| 107 | ERR REC2 NOT VALID — Check sum error of fault memory in EDM (redundant data record 2) | If fault occurs repeatedly: Contact Service. | |
| 118 | LO ECU Power Supply Voltage — Yellow alarm; warning | Supply voltage too low. | Check engine governor supply voltage. |
| 118 | L1 SUPPLY VOLT. LOW — Supply voltage too low (1st limit value) | Check engine governor supply voltage. | |
| 119 | LOLO ECU Supply Voltage — Limit value 2 | Supply voltage too low. | Check ECU supply voltage; Contact Service. |
| 119 | L2 SUPPLY VOLT. LOW — Supply voltage too low (2nd limit value) | Check engine governor supply voltage. | |
| 120 | HI ECU Supply Voltage — Limit value 1 | Supply voltage too high. | Check ECU supply voltage; Contact Service. |
| 120 | L1 SUPPLY VOLT. HIGH — Supply voltage too high (1st limit value) | Check engine governor supply voltage. | |
| 121 | HIHI ECU Supply Voltage — Limit value 2 | Supply voltage too high. | Check ECU supply voltage; Contact Service. |
| 121 | L2 SUPPLY VOLT. HIGH — Supply voltage too high (2nd limit value); automatic engine shutdown (depending on project design) | Check engine governor supply voltage. If engine was stopped: Start engine (→ Page 57). | |
| 122 | HI T-ECU — Limit value 1 | Electronic unit temperature too high. | Reduce power; Improve engine room ventilation. |
| 122 | L1 T-ELECTRONIC — Temperature in engine governor housing too high (1st limit value) | 1. Improve engine room ventilation. 2. Reduce engine power. Change over to idle and contact Service. | |
| 134 | 15V POS ECU DEFECT — Electronic equipment defective; automatic engine shutdown | Contact Service. | |
| 136 | 15V NEG ECU DEFECT — Electronic equipment defective; automatic engine shutdown | Contact Service. | |
| 137 | L1 5V BUFFER TEST — Power supply for pressure sensors defective. | 1. Disconnect connectors X2 and X3 from engine governor. If alarm does not disappear: Contact Service. 2. Check wiring (pressure sensors). 3. Contact Service. | |
| 138 | SENSORPOWER-DEFECT — Power supply for pressure sensors defective. | 1. Disconnect connectors X2 and X3 from engine governor. If alarm does not disappear: Contact Service. 2. Check wiring (pressure sensors). 3. Contact Service. | |
| 139 | L1 TE BUFFER TEST — Internal electronic fault (temperature sensors) | Contact Service. | |
| 140 | TE BUF. ECU DEFECT — Internal electronic fault (temperature sensors) | Contact Service. | |
| 141 | AL Power too high | This alarm is activated when the average power of the last 24 hours exceeded the maximum value set in PR1.1088.001. | Reduce power. |
| 142 | AL MCR exceeded 1 hour | This alarm is activated when the MCR was exceeded for more than one hour within the last 12 hours. | Reduce power. |
| 142 | BANK1 ECU DEFECT — Internal electronic fault; Engine does not start | Contact Service. | |
| 144 | BANK2 ECU DEFECT — Internal electronic fault; Engine does not start | Contact Service. | |
| 145 | 15V_GOOD ECU DEFECT — Electronic equipment defective; automatic engine shutdown | Contact Service. | |
| 146 | L1 AD-TEST1 SUPPLY — A/D-converter supply voltage too low | Contact Service. | |
| 147 | AD-TEST1 ECU DEFECT — Electronic equipment defective; automatic engine shutdown | Contact Service. | |
| 148 | L1 AD-TEST2 SUPPLY — A/D-converter supply voltage too low | Contact Service. | |
| 149 | AD-TEST2 ECU DEFECT — Electronic equipment defective; automatic engine shutdown | Contact Service. | |
| 150 | L1 AD-TEST3 SUPPLY — A/D-converter supply voltage too low | Contact Service. | |
| 151 | AD-TEST3 ECU DEFECT — Electronic equipment defective; automatic engine shutdown | Contact Service. | |
| 170 | MI MODULE FAIL — Module in maintenance predictor either defective or missing | Contact Service. | |
| 171 | MI NOT ACTIVE — Maintenance predictor no more activated | Contact Service. | |
| 173 | MODULE WRITE LIMIT — EEPROM write limit reached | Contact Service. | |
| 176 | AL LifeData Not Avail | No (appropriate) LifeData backup system available, ECU reset after expiration of time-out period. | Contact Service. |
| 177 | AL LifeData restore incomplete | This error message is generated if a CRC is faulty during a data upload to ADEC (indicated for each individual module). | Contact Service. |
| 180 | AL CAN1 Node Lost | Connection to one node on CAN bus 1 failed. | Contact Service. |
| 181 | AL CAN2 Node Lost | Connection to one node on CAN bus 2 failed. | Contact Service. |
| 182 | AL CAN Wrong Parameters | Incorrect parameter values entered in data record. | Contact Service. |
| 183 | AL CAN No PU-Data | A CAN mode has been selected in which communication with the PU data module is initialized. However, the required PU data module is not available or not valid. | Contact Service. |
| 184 | AL CAN PU-Data Flash Error | A programming error occurred when attempting to copy a received PU data module into the Flash module. | Contact Service. |
| 184 | CAN PU-DATA EE-FAIL — Error during project design data download in EEPROMs | Contact Service. | |
| 185 | CAN LESS MAILBOXES — Error during CAN initialization. | Contact Service. | |
| 186 | AL CAN1 Bus Off | CAN controller 1 is in "Bus-Off" status. | Inspect CAN bus for short circuit and rectify short circuit as necessary; Check shielding, improve as necessary; Contact Service. |
| 187 | AL CAN1 Error Passive | CAN controller 1 has signaled a warning. | Inspect CAN bus for short circuit and rectify short circuit as necessary; Check shielding, improve as necessary; Contact Service. |
| 188 | AL CAN2 Bus Off | CAN controller 2 is in "Bus-Off" status; automatic changeover to CAN 1; short circuit, massive interference or Baud rate incompatibility. | Inspect CAN bus for short circuit and rectify short circuit as necessary; Check shielding, improve as necessary; Contact Service. |
| 189 | AL CAN2 Error Passive | CAN controller 2 has signaled a warning. | Inspect CAN bus for short circuit and rectify short circuit as necessary; Check shielding, improve as necessary; Contact Service. |
| 190 | AL EMU Parameter Not Supported | EMU parameter are not supported. | Contact Service. |
| 201 | SD T-Coolant | Coolant temperature sensor faulty; short circuit or wire break. Error cleared after restarting the engine. | Check sensor and cabling (B6), replace as necessary. |
| 202 | SD T-Fuel | Fuel temperature sensor faulty; short circuit or wire break. Error cleared after restarting the engine. | Check sensor and cabling (B33), replace as necessary. |
| 203 | SD T-Charge Air | Charge-air temperature sensor faulty; short circuit or wire break. Error cleared after restarting the engine. | Check sensor and cabling (B9), replace as necessary. |
| 204 | SD Level Lube Oil | Lube-oil level sensor faulty; short circuit or wire break. | Check sensor and cabling, replace as necessary. |
| 205 | SD T-Coolant Intercooler | Coolant temperature sensor of intercooler faulty; short circuit or wire break. Error cleared after restarting the engine. | Check sensor and cabling (B26), replace as necessary. |
| 206 | SD T-Exhaust A | Exhaust temperature sensor on A-side faulty; short circuit or wire break. Error cleared after restarting the engine. | Check sensor and cabling (B4.21), replace as necessary. |
| 207 | SD T-Exhaust B | Exhaust temperature sensor on B-side faulty; short circuit or wire break. | Check sensor and cabling (B4.22), replace as necessary. |
| 208 | SD P-Charge Air | Charge-air pressure sensor faulty; short circuit or wire break. Error cleared after restarting the engine. | Check sensor and cabling (B10), replace as necessary. |
| 211 | SD P-Lube Oil | Lube-oil pressure sensor faulty; short circuit or wire break. Error cleared after restarting the engine. | Check sensor and cabling (B5), replace as necessary. |
| 212 | SD P-Coolant | Coolant pressure sensor faulty; short circuit or wire break. Error cleared after restarting the engine. | Check sensor and cabling (B16), replace as necessary. |
| 213 | SD P-Coolant Intercooler | Coolant pressure sensor of intercooler faulty; short circuit or wire break. Error cleared after restarting the engine. | Check sensor and cabling (B43), replace as necessary. |
| 214 | SD P-CrankCase | Crankcase pressure sensor faulty; short circuit or wire break. Error cleared after restarting the engine. | Check sensor and cabling (B50), replace as necessary. |
| 215 | SD P-HD High Pressure Fuel — Yellow alarm; power limitation < 20% | Rail pressure sensor faulty; high-pressure regulator emergency mode; short circuit or wire break. | Check sensors B48.1, B48.2, and cabling, replace if necessary (Page 109). |
| 215 | SD P-RAIL FUEL — Sensor defect (common rail pressure); HP controller in emergency mode | 1. Check wiring. 2. Contact Service. | |
| 216 | SD T-Lube Oil | Lube-oil temperature sensor faulty; short circuit or wire break. Error cleared after restarting the engine. | Check sensor and cabling (B7), replace as necessary. |
| 219 | SD T-Intake Air | Intake air temperature sensor faulty; short circuit or wire break. Error cleared after restarting the engine. | Check sensor and cabling (B3), replace as necessary. |
| 220 | SD Coolant Level | Coolant level sensor faulty; short circuit or wire break. Error cleared after restarting the engine. | Check sensor and cabling (F33), replace as necessary. |
| 221 | HI P-Diff Lube Oil | Lube-oil differential pressure sensor faulty; short circuit or wire break. Error cleared after restarting the engine. | Check sensor and cabling (F25), replace as necessary. |
| 221 | SD Dif Lube Oil — Yellow alarm; warning | Lube oil pressure differential sensor faulty; short circuit or wire break. | Check sensor B93 and wiring, replace as necessary (Page 109). |
| 222 | SD Level Leakage Fuel | Leak-fuel level sensor faulty; short circuit or wire break. Error cleared after restarting the engine. | Check sensor and cabling (F46), replace as necessary. |
| 223 | SD Level Coolant Intercooler | Coolant level sensor of intercooler faulty; short circuit or wire break. Error cleared after restarting the engine. | Check sensor and cabling (F57), replace as necessary. |
| 227 | SD P-Oil bef. Filter | Lube-oil pressure sensor before filter faulty; short circuit or wire break. Error cleared after restarting the engine. | Check sensor and cabling (B5.3), replace as necessary. |
| 228 | SD P-Fuel before Filter | Fuel pressure sensor faulty; short circuit or wire break. | Check sensor and cabling (B5.3), replace as necessary. |
| 229 | AL Stop Camshaft Sensor Defect | Engine stop due to camshaft sensor fault (and a prior crankshaft sensor fault in the same operating cycle). Error cleared after restarting the engine. | Check connector and cabling to sensor B1, replace as necessary. |
| 229 | SD ENG.SPEED SENSORS — Sensor defect (crankshaft speed) and sensor defect (camshaft speed) | 1. Check wiring. 2. Contact Service. | |
| 230 | SD Crankshaft Speed | Crankshaft speed sensor faulty; short circuit or wire break. Error cleared after restarting the engine. | Check sensor and cabling (B13), replace as necessary. |
| 231 | SD Camshaft Speed | Camshaft speed sensor faulty; short circuit or wire break. Error cleared after restarting the engine. | Check sensor and cabling (B1), replace as necessary. |
| 232 | SD Charger 1 Speed | Speed sensor of primary turbocharger faulty; short circuit or wire break. Error cleared after restarting the engine. | Check sensor and cabling (B44.1), replace as necessary. |
| 233 | SD Charger 2 Speed | Speed sensor of secondary turbocharger faulty; short circuit or wire break. Error cleared after restarting the engine. | Check sensor and cabling (B44.2), replace as necessary. |
| 239 | SD P-Diff Fuel | Fuel differential pressure sensor faulty. This alarm occurs only in combination with the alarm SD P-Fuel before Filter or SD P-Fuel after Filter. | Note further fault messages. |
| 240 | SD P-Fuel | Fuel pressure sensor faulty; short circuit or wire break. Error cleared after restarting the engine. | Check sensor and cabling (B34), replace as necessary. |
| 241 | SD T-Umblasen | Recirculation temperature sensor faulty; short circuit or wire break. Error cleared after restarting the engine. | Check sensor and cabling (B49), replace as necessary. |
| 242 | SD T-Coolant (R) | Redundant coolant temperature sensor faulty; short circuit or wire break. Error cleared after restarting the engine. | Check sensor and cabling, replace as necessary. |
| 244 | SD P-Lube Oil (R) | Redundant lube-oil pressure sensor faulty; short circuit or wire break. Error cleared after restarting the engine. | Check sensor and cabling, replace as necessary. |
| 245 | SD ECU Supply Voltage | Internal ECU fault; electronic block faulty. | Replace ECU. |
| 245 | SD POWER SUPPLY — Sensor defect (engine governor operating voltage) | Contact Service. | |
| 246 | SD T-ELECTRONIC — Sensor defect (temperature in engine governor) | Contact Service. | |
| 250 | SD CAN SPEED DEMAND — Sensor defect (CAN nominal speed demand) | 1. Check speed transmitter. 2. Check wiring (CAN bus). 3. Contact Service. | |
| 266 | SD Speed Demand | Analog speed demand signal faulty; short circuit or wire break. | Check cabling; Check speed demand signal. |
| 267 | SD SP.DEM.TEST BENCH — Sensor defect (analog speed demand); NOTE: Only used in test-stand operation. | 1. Check speed transmitter. 2. Check wiring. 3. Contact Service. | |
| 268 | SD Spinning Value | Analog wheel slip signal faulty; short circuit or wire break. | Check sensor and cabling, replace as necessary. |
| 269 | SD Loadp.Analog filt | Filtered analog load pulse signal missing; short circuit or wire break. Error cleared after restarting the engine. | Check cabling, replace as necessary. |
| 270 | SD Frequency Input | Frequency input faulty; short circuit or wire break. | Check cabling; Check setpoint speed transmitter; Contact Service. |
| 270 | SD SPEED DEMAND FI1 — Sensor defect (frequency input for speed demand) | 1. Check speed transmitter. 2. Check wiring. 3. Contact Service. | |
| 270 SO | Frequency Input SD alarm configuration; frequency input faulty; short circuit or wire break. | 1. Check cabling. 2. Check setpoint speed transmitter. | |
| 272 | SD T-EXTERN 2 — External device defective (CAN T-EXTERN 2) | Contact Service. | |
| 273 | SD P-EXTERN 1 — External device defective (CAN P-EXTERN 1) | Contact Service. | |
| 274 | SD P-EXTERN 2 — External device defective (CAN P-EXTERN 2) | Contact Service. | |
| 275 | SD EXT.COOLANT LEVEL — External coolant-level monitoring defective (CAN) | Contact Service. | |
| 276 | SD INTERCOOLER LEVEL — External charge-air coolant-level monitoring defective (CAN) | Contact Service. | |
| 277 | SD BIN-EXTERN 3 — External device defective (CAN BIN-EXTERN 3) | Contact Service. | |
| 278 | SD BIN-EXTERN 4 — External device defective (CAN BIN-EXTERN 4) | Contact Service. | |
| 301 | AL Timing Cylinder A1 | Time-of-flight measuring fault of injector: time-of flight measured value extremely low or extremely high. | Replace injector concerned if the fault message appears frequently (→ Page 146). |
| 302 | AL Timing Cylinder A2 | Time-of-flight measuring fault of injector: time-of flight measured value extremely low or extremely high. | Replace injector concerned if the fault message appears frequently (→ Page 146). |
| 303 | AL Timing Cylinder A3 | Time-of-flight measuring fault of injector: time-of flight measured value extremely low or extremely high. | Replace injector concerned if the fault message appears frequently (→ Page 146). |
| 304 | AL Timing Cylinder A4 | Time-of-flight measuring fault of injector: time-of flight measured value extremely low or extremely high. | Replace injector concerned if the fault message appears frequently (→ Page 146). |
| 305 | AL Timing Cylinder A5 | Time-of-flight measuring fault of injector: time-of flight measured value extremely low or extremely high. | Replace injector concerned if the fault message appears frequently (→ Page 146). |
| 306 | AL Timing Cylinder A6 | Time-of-flight measuring fault of injector: time-of flight measured value extremely low or extremely high. | Replace injector concerned if the fault message appears frequently (→ Page 146). |
| 307 | AL Timing Cylinder A7 | Time-of-flight measuring fault of injector: time-of flight measured value extremely low or extremely high. | Replace injector concerned if the fault message appears frequently (→ Page 146). |
| 308 | AL Timing Cylinder A8 | Time-of-flight measuring fault of injector: time-of flight measured value extremely low or extremely high. | Replace injector concerned if the fault message appears frequently (→ Page 146). |
| 309 | AL Timing Cylinder A9 | Time-of-flight measuring fault of injector: time-of flight measured value extremely low or extremely high. | Replace injector concerned if the fault message appears frequently (→ Page 146). |
| 310 | AL Timing Cylinder A10 | Time-of-flight measuring fault of injector: time-of flight measured value extremely low or extremely high. | Replace injector concerned if the fault message appears frequently (→ Page 146). |
| 311 | AL Timing Cylinder B1 | Time-of-flight measuring fault of injector: time-of flight measured value extremely low or extremely high. | Replace injector concerned if the fault message appears frequently (→ Page 146). |
| 312 | AL Timing Cylinder B2 | Time-of-flight measuring fault of injector: time-of flight measured value extremely low or extremely high. | Replace injector concerned if the fault message appears frequently (→ Page 146). |
| 313 | AL Timing Cylinder B3 | Time-of-flight measuring fault of injector: time-of flight measured value extremely low or extremely high. | Replace injector concerned if the fault message appears frequently (→ Page 146). |
| 314 | AL Timing Cylinder B4 | Time-of-flight measuring fault of injector: time-of flight measured value extremely low or extremely high. | Replace injector concerned if the fault message appears frequently (→ Page 146). |
| 315 | AL Timing Cylinder B5 | Time-of-flight measuring fault of injector: time-of flight measured value extremely low or extremely high. | Replace injector concerned if the fault message appears frequently (→ Page 146). |
| 316 | AL Timing Cylinder B6 | Time-of-flight measuring fault of injector: time-of flight measured value extremely low or extremely high. | Replace injector concerned if the fault message appears frequently (→ Page 146). |
| 317 | AL Timing Cylinder B7 | Time-of-flight measuring fault of injector: time-of flight measured value extremely low or extremely high. | Replace injector concerned if the fault message appears frequently (→ Page 146). |
| 318 | AL Timing Cylinder B8 | Time-of-flight measuring fault of injector: time-of flight measured value extremely low or extremely high. | Replace injector concerned if the fault message appears frequently (→ Page 146). |
| 319 | AL Timing Cylinder B9 | Time-of-flight measuring fault of injector: time-of flight measured value extremely low or extremely high. | Replace injector concerned if the fault message appears frequently (→ Page 146). |
| 320 | AL Timing Cylinder B10 | Time-of-flight measuring fault of injector: time-of flight measured value extremely low or extremely high. | Replace injector concerned if the fault message appears frequently (→ Page 146). |
| 321 | AL Wiring Cylinder A1 | Cabling fault in injector cabling to cylinder. Result: misfiring. | Check solenoid valve; Contact Service. |
| 322 | AL Wiring Cylinder A2 | Cabling fault in injector cabling to cylinder. Result: misfiring. | Check solenoid valve; Contact Service. |
| 323 | AL Wiring Cylinder A3 | Cabling fault in injector cabling to cylinder. Result: misfiring. | Check solenoid valve; Contact Service. |
| 324 | AL Wiring Cylinder A4 | Cabling fault in injector cabling to cylinder. Result: misfiring. | Check solenoid valve; Contact Service. |
| 325 | AL Wiring Cylinder A5 | Cabling fault in injector cabling to cylinder. Result: misfiring. | Check solenoid valve; Contact Service. |
| 326 | AL Wiring Cylinder A6 | Cabling fault in injector cabling to cylinder. Result: misfiring. | Check solenoid valve; Contact Service. |
| 327 | AL Wiring Cylinder A7 | Cabling fault in injector cabling to cylinder. Result: misfiring. | Check solenoid valve; Contact Service. |
| 328 | AL Wiring Cylinder A8 | Cabling fault in injector cabling to cylinder. Result: misfiring. | Check solenoid valve; Contact Service. |
| 329 | AL Wiring Cylinder A9 | Cabling fault in injector cabling to cylinder. Result: misfiring. | Check solenoid valve; Contact Service. |
| 330 | AL Wiring Cylinder A10 | Cabling fault in injector cabling to cylinder. Result: misfiring. | Check solenoid valve; Contact Service. |
| 331 | AL Wiring Cylinder B1 | Cabling fault in injector cabling to cylinder. Result: misfiring. | Check solenoid valve; Contact Service. |
| 332 | AL Wiring Cylinder B2 | Cabling fault in injector cabling to cylinder. Result: misfiring. | Check solenoid valve; Contact Service. |
| 333 | AL Wiring Cylinder B3 | Cabling fault in injector cabling to cylinder. Result: misfiring. | Check solenoid valve; Contact Service. |
| 334 | AL Wiring Cylinder B4 | Cabling fault in injector cabling to cylinder. Result: misfiring. | Check solenoid valve; Contact Service. |
| 335 | AL Wiring Cylinder B5 | Cabling fault in injector cabling to cylinder. Result: misfiring. | Check solenoid valve; Contact Service. |
| 336 | AL Wiring Cylinder B6 | Cabling fault in injector cabling to cylinder. Result: misfiring. | Check solenoid valve; Contact Service. |
| 337 | AL Wiring Cylinder B7 | Cabling fault in injector cabling to cylinder. Result: misfiring. | Check solenoid valve; Contact Service. |
| 338 | AL Wiring Cylinder B8 | Cabling fault in injector cabling to cylinder. Result: misfiring. | Check solenoid valve; Contact Service. |
| 339 | AL Wiring Cylinder B9 | Cabling fault in injector cabling to cylinder. Result: misfiring. | Check solenoid valve; Contact Service. |
| 340 | AL Wiring Cylinder B10 | Cabling fault in injector cabling to cylinder. Result: misfiring. | Check solenoid valve; Contact Service. |
| 341 | AL Open Load Cylinder A1 | Disruption fault in injector cabling to cylinder. Result: misfiring. | Check solenoid valve; Contact Service. |
| 342 | AL Open Load Cylinder A2 | Disruption fault in injector cabling to cylinder. Result: misfiring. | Check solenoid valve; Contact Service. |
| 343 | AL Open Load Cylinder A3 | Disruption fault in injector cabling to cylinder. Result: misfiring. | Check solenoid valve; Contact Service. |
| 344 | AL Open Load Cylinder A4 | Disruption fault in injector cabling to cylinder. Result: misfiring. | Check solenoid valve; Contact Service. |
| 345 | AL Open Load Cylinder A5 | Disruption fault in injector cabling to cylinder. Result: misfiring. | Check solenoid valve; Contact Service. |
| 346 | AL Open Load Cylinder A6 | Disruption fault in injector cabling to cylinder. Result: misfiring. | Check solenoid valve; Contact Service. |
| 347 | AL Open Load Cylinder A7 | Disruption fault in injector cabling to cylinder. Result: misfiring. | Check solenoid valve; Contact Service. |
| 348 | AL Open Load Cylinder A8 | Disruption fault in injector cabling to cylinder. Result: misfiring. | Check solenoid valve; Contact Service. |
| 349 | AL Open Load Cylinder A9 | Disruption fault in injector cabling to cylinder. Result: misfiring. | Check solenoid valve; Contact Service. |
| 350 | AL Open Load Cylinder A10 | Disruption fault in injector cabling to cylinder. Result: misfiring. | Check solenoid valve; Contact Service. |
| 351 | AL Open Load Cylinder B1 | Disruption fault in injector cabling to cylinder. Result: misfiring. | Check solenoid valve; Contact Service. |
| 352 | AL Open Load Cylinder B2 | Disruption fault in injector cabling to cylinder. Result: misfiring. | Check solenoid valve; Contact Service. |
| 353 | AL Open Load Cylinder B3 | Disruption fault in injector cabling to cylinder. Result: misfiring. | Check solenoid valve; Contact Service. |
| 354 | AL Open Load Cylinder B4 | Disruption fault in injector cabling to cylinder. Result: misfiring. | Check solenoid valve; Contact Service. |
| 355 | AL Open Load Cylinder B5 | Disruption fault in injector cabling to cylinder. Result: misfiring. | Check solenoid valve; Contact Service. |
| 356 | AL Open Load Cylinder B6 | Disruption fault in injector cabling to cylinder. Result: misfiring. | Check solenoid valve; Contact Service. |
| 357 | AL Open Load Cylinder B7 | Disruption fault in injector cabling to cylinder. Result: misfiring. | Check solenoid valve; Contact Service. |
| 358 | AL Open Load Cylinder B8 | Disruption fault in injector cabling to cylinder. Result: misfiring. | Check solenoid valve; Contact Service. |
| 359 | AL Open Load Cylinder B9 | Disruption fault in injector cabling to cylinder. Result: misfiring. | Check solenoid valve; Contact Service. |
| 360 | AL Open Load Cylinder B10 | Disruption fault in injector cabling to cylinder. Result: misfiring. | Check solenoid valve; Contact Service. |
| 361 | AL Power Stage Low | Internal electronic fault (electronics possibly faulty: start ITS). If the ITS diagnosis result is "electronics OK", note further fault messages (e.g. Cabling faults). | Check solenoid valve cabling; Replace ECU. |
| 361 AL | Power Stage Low SD alarm configuration; internal electronic fault (electronics possibly faulty: start ITS). If the ITS diagnosis result is “electronics OK | 1. Check solenoid valve cabling. 2. Replace ECU. | |
| 362 | AL Power Stage High | Internal electronic fault (electronics possibly faulty: start ITS). If the ITS diagnosis result is "electronics OK", note further fault messages (e.g. Cabling faults). | Check solenoid valve cabling; Replace ECU. |
| 362 AL | Power Stage High SD alarm configuration; internal electronic fault (electronics possibly faulty: start ITS). If the ITS diagnosis result is “electronics OK | 1. Check solenoid valve cabling. 2. Replace ECU. | |
| 363 | AL Stop Power Stage | Internal electronic fault (electronics possibly faulty: start ITS). | Check cabling; Attempt to restart engine. |
| 363 AL | Stop Power Stage SD alarm configuration; internal electronic fault (electronics possibly faulty: start ITS). If the ITS diagnosis result is “electronics OK | 1. Check cabling. 2. Attempt to restart engine. | |
| 365 | AL Stop MV-Wiring Ground | Injector cabling fault. If bit "4.1020.021" (Power Stage Failure: stop engine) is set, engine will be shut down as additional measure. Short circuit of positive connection of one or more injectors to ground; Short circuit of negative connection of one or more injectors to ground. | Check cabling; Attempt to restart engine. |
| 365 AL | Stop MV-Wiring SD alarm configuration; injector Ground cabling fault. If bit"1.1020.021” is set, engine will be shut down as additional measure. | 1. Check cabling. 2. Attempt to restart engine. | |
| 371 | AL Wiring TO 1 | Short circuit or wire break on transistor output 1 (TO 1). | Check turbocharger valve/cabling, repair as necessary; Replace ECU. |
| 371 AL | Wiring TO 1 SD alarm configuration; short circuit or wire break on turbocharger transistor output 1 (TO 1). | 1. Check turbocharger valve/cabling, repair as necessary. 2. Replace ECU. | |
| 372 | AL Wiring TO 2 | Short circuit or wire break on transistor output 2 (TO 2). | Check recirculation valve/cabling, repair as necessary; Replace ECU. |
| 372 AL | Wiring TO 2 SD alarm configuration; short circuit or wire break on recirculation transistor output 2 (TO 2). | 1. Check turbocharger valve/cabling, repair as necessary. 2. Replace ECU. | |
| 373 | AL Wiring TO 3 | Short circuit or wire break on transistor output 3 (TO 3). | |
| 373 AL | Wiring TO 3 SD alarm configuration; short circuit or wire break on transistor output 3 (TO 3) | ||
| 374 | AL Wiring TO 4 | Short circuit or wire break on transistor output 4 (TO 4). | |
| 381 | AL Wiring TOP 1 | Short circuit or wire break on transistor output, plant-side 1 (TOP 1). | Check cabling to plant. |
| 382 | AL Wiring TOP 2 | Short circuit or wire break on transistor output, plant-side 2 (TOP 2). | Check cabling to plant. |
| 383 | AL Wiring TOP 3 | Short circuit or wire break on transistor output, plant-side 3 (TOP 3). | Check cabling to plant. |
| 384 | AL Wiring TOP 4 | Short circuit or wire break on transistor output, plant-side 4 (TOP 4). | Check cabling to plant. |
| 390 | AL MCR exceeded | DBR/MCR function: MCR has been exceeded. | If alarm is only temporary, no action required; if alarm is continuously active, contact Service. |
| 392 | HI T-Coolant Red — Limit value 1 | Redundant coolant temperature reading too high. | Check cabling; Contact Service. |
| 393 | SS T-Coolant Red — Limit value 2 | Redundant coolant temperature reading too high; engine shutdown. | Check cabling and sensor; Contact Service. |
| 394 | LO P-Lube Oil Red — Limit value 1 | Redundant lube oil pressure reading too low. | Check cabling and sensor; Contact Service. |
| 395 | SS P-Lube Oil Red — Limit value 2 | Redundant lube oil pressure reading too low. | Check cabling and sensor; Contact Service. |
| 396 | TD T-Coolant Sensor Deviation | Maximum coolant temperature deviation. | Check cabling and sensor; Contact Service. |
| 396 | AL T-Coolant Max Deviation — Alarm configuration; maximum coolant temperature deviation. | 1. Check cabling and sensor. 2. Contact Service. | |
| 397 | TD P-Oil Sensor Deviation | Maximum lube oil pressure deviation. | Check cabling and sensor; Contact Service. |
| 397 | AL P-Oil Max Deviation — Alarm configuration; maximum lube oil pressure deviation. | 1. Check cabling and sensor. 2. Contact Service. | |
| 400 | AL Open Load Digital Input 1 | Open circuit at digital input 1; cabling faulty or no resistance across the switch. | Check cabling; Check input of target device; Contact Service. |
| 401 | AL Open Load Digital Input 2 | Open circuit at digital input 2; cabling faulty or no resistance across the switch. | Check cabling; Check input of target device; Contact Service. |
| 401 | Lube oil pressure before engine, shutdown | ||
| 402 | AL Open Load Digital Input 3 | Open circuit at digital input 3; cabling faulty or no resistance across the switch. | Check cabling; Check input of target device; Contact Service. |
| 403 | AL Open Load Digital Input 4 | Open circuit at digital input 4; cabling faulty or no resistance across the switch. | Check cabling; Check input of target device; Contact Service. |
| 404 | AL Open Load Digital Input 5 | Open circuit at digital input 5; cabling faulty or no resistance across the switch. | Check cabling; Check input of target device; Contact Service. |
| 405 | AL Open Load Digital Input 6 | Open circuit at digital input 6; cabling faulty or no resistance across the switch. | Check cabling; Check input of target device; Contact Service. |
| 406 | AL Open Load Digital Input 7 | Open circuit at digital input 7; cabling faulty or no resistance across the switch. | Check cabling; Check input of target device; Contact Service. |
| 407 | AL Open Load Digital Input 8 | Open circuit at digital input 8; cabling faulty or no resistance across the switch. | Check cabling; Check input of target device; Contact Service. |
| 408 | AL Open Load Emerg. Stop Input ESI | Open circuit at input for emergency stop; cabling faulty or no resistance across the switch. | Check cabling; Check input of target device; Contact Service. |
| 410 | LO U-PDU — Limit value 1 | Injector voltage too low. | Check cabling; Check power supply; Contact Service. |
| 411 | LOLO U-PDU — Limit value 2 | Injector voltage too low. | Check cabling; Check power supply; Contact Service. |
| 411 | ECU voltage violation | Check power supply, engine wiring, and plug connections | |
| 412 | HI U-PDU — Limit value 1 | Injector voltage too high. | Check cabling; Check power supply; Contact Service. |
| 413 | HIHI U-PDU — Limit value 2 | Injector voltage too high. | Check cabling; Check power supply; Contact Service. |
| 414 | HI Water Level Fuel Prefilter — Limit value 1 | Water level in fuel prefilter too high. | Drain water (→ Page 156). |
| 415 | LO P-Coolant Intercooler — Limit value 1 | Coolant pressure in intercooler too low. | Top up coolant (→ Page 187). |
| 416 | SS P-Coolant Intercooler — Limit value 2 | Coolant pressure in intercooler too low, engine shutdown. | Top up coolant (→ Page 187). |
| 417 | SD Water Level Fuel Prefilter | Water level sensor of fuel prefilter faulty; short circuit or wire break. | Check sensor and cabling, replace as necessary. Error cleared after restarting the engine. |
| 419 | SD T-Coolant b.Engine | Coolant inlet temperature sensor faulty, short circuit or wire break. | Check sensor and cabling (B3), replace as necessary. |
| 420 | AL L1 Aux 1 — Limit value 1 | Input signal of Aux 1 has exceeded/not attained limit value 1, depending on configuration. | Determine and rectify reason for limit value violation. |
| 421 | AL L2 Aux 1 — Limit value 2 | Input signal of Aux 1 has exceeded/not attained limit value 2, depending on configuration. | Determine and rectify reason for limit value violation. |
| 422 | SD T-Charge Air B — Yellow alarm; warning | Charge-air temperature sensor faulty; Short circuit or wire break. | Check sensor B10.11 and wiring, replace as necessary (> Page 109). |
| 428 | AL L1 T-Aux 1 — Limit value 1 | Temperature signal of Aux 1 has exceeded / not attained limit value 1, depending on configuration. | Determine and rectify reason for limit value violation. |
| 430 | LO P-Coolant before Engine — Limit value 1 | Coolant pressure too low. | Check coolant circuit. |
| 431 | SS P-Coolant before Engine — Limit value 2 | Coolant pressure too low. | Check coolant circuit. |
| 434 | HI T-Coolant before Engine — Limit value 1 | Coolant temperature too high. | Check coolant circuit. |
| 435 | SS T-Coolant before Engine — Limit value 2 | Coolant temperature too high. | Check coolant circuit. |
| 438 | LO P-Fuel 2 (Common Rail) — Red alarm; power reduction = 20% | Rail pressure below specified value; DBR reduction; HP fuel control block faulty or leakage in HP fuel system. | Contact Service. |
| 439 | HI P-Fuel 2 (Common Rail) — Red alarm; power reduction = 20% | Rail pressure above specified value; DBR reduction; HP fuel control block faulty, short circuit or wire break. | Contact Service. |
| 440 | AL L1 P-Aux 1 — Limit value 1 | Pressure signal of Aux 1 has exceeded / not attained limit value 1, depending on configuration. | Determine and rectify reason for limit value violation. |
| 441 | AL Rail 2 Leakage — Yellow alarm; warning | Pressure gradient in rail is too low during starting or too high during stopping; HP system leaky, air in system. | Contact Service. |
| 442 | AL L2 P-Aux 1 — Limit value 2 | Pressure signal of Aux 1 has exceeded / not attained limit value 2, depending on configuration. | Determine and rectify reason for limit value violation. |
| 442 - AL L2 P-Aux 1 | Pressure signal of Aux 1 has exceeded / not attained limit value 2, depending on configuration. | Sensor defect of injector power stage; internal fault of engine governor. | Replace ECU. |
| 444 | SD U-PDU | Sensor defect of injector power stage; internal fault of engine governor. | Replace ECU. |
| 445 | SD P-Ambient Air | Ambient air pressure sensor faulty. | Replace ECU. |
| 445 | Ambient air pressure sensor faulty. | Replace ECU. | |
| 446 | SD P-HD2 — Yellow alarm; power limitation < 20% | Rail pressure sensor faulty, high-pressure regulator emergency mode; short circuit or wire break. | Check sensor B48 and wiring, replace as necessary (> Page 109). |
| 448 | HI P-Charge Air — Limit value 1 | Charge-air pressure too high. | Contact Service. |
| 448 | Charge-air pressure too high. | Contact Service. | |
| 449 | SS P-Charge Air — Limit value 2 | Charge-air pressure too high. | Contact Service. |
| 450 | SD Idle/End-Torque Input [%] | Input signal for idle/end torque faulty; short circuit or wire break. | Check signal transmitter and cabling, replace as necessary. Error cleared after restarting the engine. |
| 450 | Input signal for idle/end torque faulty; short circuit or wire break. | Check signal transmitter and cabling, replace as necessary. Error cleared after restarting the engine. | |
| 454 | SS Power Reduction Active | Power reduction is active. | Note further fault messages; Determine and rectify reason for power reduction. |
| 455 | AL L1 Aux 1 Plant — Limit value 1 | Input signal of Aux 1 (plant side) has exceeded/not attained limit value 1, depending on configuration. | Determine and rectify reason for limit value violation. |
| 456 | AL L2 Aux 1 Plant — Limit value 2 | Input signal of Aux 1 (plant side) has exceeded/not attained limit value 2, depending on configuration. | Determine and rectify reason for limit value violation. |
| 460 | HI T-Exhaust EMU — Limit value 1 | EMU exhaust gas temperature value too high. | Check cabling; Contact Service. |
| 460 | EMU exhaust gas temperature value too high. | Check cabling. Contact Service. | |
| 461 | LO T-Exhaust EMU — Limit value 1 | EMU exhaust gas temperature value too low. | Check cabling; Contact Service. |
| 461 | EMU exhaust gas temperature value too low. | Check cabling. Contact Service. | |
| 462 | HI T-Coolant EMU — Limit value 1 | EMU coolant temperature value too high / low. | Check configuration with DiaSys. |
| 462 | EMU coolant temperature value too high / low. | Check configuration with DiaSys. | |
| 464 | SD P-AUX 1 | Analog pressure input signal for Aux 1 faulty; short circuit or wire break. | Check pressure transmitter and cabling, replace as necessary. Error cleared after restarting the engine. |
| 464 - SD P-AUX 1 | Analog pressure input signal for Aux 1 faulty; short circuit or wire break. | Check pressure transmitter and cabling, replace as necessary. Error cleared after restarting the engine. | |
| 467 | AL L2 T-Aux 1 — Limit value 2 | Temperature signal of Aux 1 has exceeded / not attained limit value 2, depending on configuration. | Determine and rectify reason for limit value violation. |
| 467 | ALL2 T-Aux 1 — Red alarm; engine stop | Temperature signal from Aux 1 violated limit value 2. | Check wiring (> Page 109); Acknowledge alarm; Restart engine; Request towing locomotive if required. |
| 467 - AL L2 T-Aux 1 | Temperature signal of Aux 1 has exceeded / not attained limit value 2, depending on configuration. | Determine and rectify reason for limit value violation. | |
| 468 | SD T-AUX 1 | Analog input for Aux 1 temperature faulty. | Replace ECU. |
| 468 - SD T-AUX 1 | Analog input for Aux 1 temperature faulty. | Replace ECU. | |
| 469 | SD AUX 1 | Analog input signal for Aux 1 faulty; short circuit or wire break. | Check signal transmitter and cabling, replace as necessary. Error cleared after restarting the engine. |
| 469 - SD AUX 1 | Analog input signal for Aux 1 faulty; short circuit or wire break. | Check signal transmitter and cabling, replace as necessary. | |
| 470 | SD T-ECU | Temperature sensor for ECU faulty; short circuit or wire break. | Check sensor and cabling, replace as necessary. Error cleared after restarting the engine. |
| 470 | Temperature sensor for ECU faulty; short circuit or wire break. | Check sensor and cabling, replace as necessary. Error cleared after restarting the engine. | |
| 471 | SD Coil Current | Control circuit for suction restrictor faulty; short circuit or wire break. | Check sensor and cabling, replace as necessary. Error cleared after restarting the engine. |
| 471 -- SD Coil Current | Control circuit for suction restrictor faulty; short circuit or wire break. | Check sensor and cabling, replace as necessary. Error cleared after restarting the engine. | |
| 472 | AL Stop SD | Engine shutdown, since all shutdown channels have "sensor faulty". | Check cabling; Contact Service. |
| 472 | Engine shutdown, since all shutdown channels have 'sensor faulty’. | Check cabling. Contact Service. | |
| 473 | AL Cabling PWM_CM2 | Cable break or short circuit on channel PWM_CM2. | Check cabling; Contact Service. |
| 473 - AL Cabling PWM_CM2 | Cable break or short circuit on channel PWM_CM2. | Check cabling. Contact Service. | |
| 474 | AL Wiring FO | Cable break or short circuit on channel FO. | Check cabling; Contact Service. |
| 474 | Cable break or short circuit on channel FO. | Check cabling. Contact Service. | |
| 475 | AL CR Trigger Engine Stop | Tripped by crash recorder triggering due to engine shutdown. | Determine and rectify cause of triggering / engine shutdown. |
| 475 | Tripped by crash recorder triggering due to engine shutdown. | Determine and rectify cause of triggering / engine shutdown. | |
| 476 | AL Crash Rec. Init. Error | Crash recorder initialization error. | Check setting with DiaSys. |
| 476 | Crash recorder initialization error. | Check setting with DiaSys. | |
| 478 | AL Comb. Alarm Yel (Plant) | Combined alarm YELLOW from plant. | Note further fault messages. |
| 478 | Combined alarm YELLOW from plant. | Note further fault messages. | |
| 479 | AL Comb. Alarm Red (Plant) | Combined alarm RED from plant. | Note further fault messages. |
| 479 | Combined alarm RED from plant. | Note further fault messages. | |
| 480 | AL Ext. Engine Protection | External engine protection function is active. | Monitoring of plant signal by ECU is active (plant-side). Check plant signal. |
| 482 | SD T-Exhaust C | Exhaust temperature sensor on A-side faulty; short circuit or wire break. | Check sensor and cabling (B4.23), replace as necessary. |
| 482 | Exhaust temperature sensor on A-side faulty; short circuit or wire break. | Check sensor and cabling (B4.23), replace as necessary. | |
| 483 | SD T-Exhaust D | Exhaust temperature sensor on A-side faulty; short circuit or wire break. | Check sensor and cabling (B4.24), replace as necessary. |
| 484 | HI T-Exhaust C — Limit value 1 | Exhaust gas temperature (C-side) too high. | Reduce power; Contact Service. |
| 484 | Exhaust gas temperature (C-side) too high. | Reduce power. Contact Service. | |
| 485 | SS T-Exhaust C — Limit value 2 | Exhaust gas temperature (C-side) too high. | Reduce power; Contact Service. |
| 485 | Exhaust gas temperature (C-side} too high. | Reduce power. | |
| 486 | HI T-Exhaust D — Limit value 1 | Exhaust gas temperature (D-side) too high. | Reduce power; Contact Service. |
| 487 | SS T-Exhaust D — Limit value 2 | Exhaust gas temperature (D-side) too high. | Reduce power; Contact Service. |
| 488 | HI ETC3 Overspeed — Limit value 1 | Speed of second secondary turbocharger too high. | Reduce power. |
| 489 | SS ETC3 Overspeed — Limit value 2 | Speed of second secondary turbocharger too high. | Reduce power. |
| 490 | HI ETC4 Overspeed — Limit value 1 | Speed of third secondary turbocharger too high. | Reduce power. |
| 491 | SS ETC4 Overspeed — Limit value 2 | Speed of third secondary turbocharger too high. | Reduce power. |
| 493 | AL ETC3 Cutin Failure | ETC 3 failed to cut in. | Check control valve on turbocharger 3. |
| 500 | AL Wiring POM Starter 1 | A wiring fault was detected in the connection of starter 1 of the CPM. The root cause might be a missing consumer, a wire break or a short circuit. | Check connection between POM and starter. |
| 501 | AL Wiring POM Starter 2 | A wiring fault was detected in the connection of starter 2 of the CPM. The root cause might be a missing consumer, a wire break or a short circuit. | Check connection between POM and starter. |
| 502 | AL Open Load POM Alternator | An open circuit was detected at the battery-charging generator connection of the POM. | Check connection between POM and battery-charging generator. |
| 503 | AL Battery Not Charging | Battery-charging generator does not charge the battery. | Check battery-charging generator and cabling. |
| 504 | AL CAN POM Node Lost | POM missing on CAN bus. | Check connection and POM. |
| 506 | AL Low Starter Voltage | Battery voltage too low for starting sequence. | Check starter battery and cabling. |
| 507 | AL POM Error | A general POM error occurred. | Replace POM. |
| 508 | AL Wrong POM-ID | POM transmits a different ID No. than expected. | Check POM wiring harness. |
| 510 | AL Override applied | Override was activated. | Deactivate Override pushbutton. |
| 515 | Al Starter Not Engaged — Yellow alarm; warning | Starter on POM could not be engaged. If the number of admissible automatic starting attempts is executed, the starting sequence is terminated. | Repeat start; Check POM, starter and wiring (> Page 109). |
| 519 | Oilniveau Calibration Error | Error when writing the calibration value to flash memory or level sensor defect. | Check sensor and cabling, replace as necessary; Contact Service. |
| 519 | Oillevel Calibration Error (optional) — Yellow alarm; warning | Error writing calibration value into flash or SD of level sensor. | Check sensor and wiring, replace as necessary (> Page 109). |
| 521 | SS P-Lube Oil Mid Val — Limit value 1 | Average oil pressure value from three sources is too low. | Check oil level, top up as necessary. |
| 523 | SS T-Coolant Red Mid Val — Limit value 2 | Average coolant temperature value from three sources is too high. | Reduce power. |
| 526 | SD T-Coolant (R2) | Redundant coolant temperature sensor faulty; short circuit or wire break. | Check sensor and cabling, replace as necessary. |
| 527 | D EngineSpd. Sensor Deviation | Maximum deviation of speed sensors. | Check cabling of speed sensors; Check for additional messages; Contact Service. |
| 528 | SD Engine Speed 3rd Sensor | Redundant crankshaft speed sensor faulty; short circuit or wire break. | Check sensor and cabling, replace as necessary. |
| 529 | SS T-Coolant Red2 — Limit value 2 | Second redundant coolant temperature too high. | Check coolant circuit. |
| 530 | SS P-Lube Oil Red2 — Limit value 2 | Second redundant lube-oil pressure too high. | Check oil level, top up as necessary. |
| 536 | AL Wiring PWM_CMi1 — Yellow alarm; warning | Wire break or short circuit on channel PWM_CM1. | Check wiring to connected device or check connected device (actuator/sensor), replace if necessary. |
| 543 | AL Multiple FDH Slaves | There is more than one unit activated as backup medium for FDH. | Contact Service. |
| 544 | AL Configuration Changed | This alarm is activated if the system configuration was changed, e.g. due to an exchange of the ECU or SAM. | This alarm remains active until either the process is made undone or data have been transferred due to an active maintenance job. The alarm will then be cleared automatically. |
| 549 | AL Power Cut-Off detected | The ECU supply voltage was switched off while the engine was running. This may lead to excessive pressure in the HP fuel system which might cause damage to the engine. | Instruct operators to disconnect power supply only when the engine is at standstill. |
| 550 | SS Engine Overspeed Red2 — Limit value 2 | Redundant engine overspeed. | Acknowledge alarm; Attempt to restart engine. |
| 551 | SS Engine Overspeed Camshaft — Limit value 2 | Camshaft overspeed. | Acknowledge alarm; Attempt to restart engine. |
| 555 | AL Call MTU Field Service | This alarm is activated if the ECU feature Field Data Handling (FDH) has carried out a maintenance job which led to a change of the engine parameters. This alarm will stay active even after switching the system off and on again until a valid activation code has been entered via the display and key control of the SAM. This activation code can be requested via internet according to a special procedure. | Request activation code via internet. |
| 558 | AL Wiring PWM_CM2 — Yellow alarm; warning | Wire break or short circuit on channel PWM_CM2. | Check wiring to connected device or check connected device (actuator/sensor), replace if necessary. |
| 576 | AL ESCM Override | Corrected MCR or DBR/MCR curve was exceeded. Engine overload! | Reduce power. |
| 577 | SD T-Lube Oil Pan | Temperature sensor in oil pan faulty; short circuit or wire break. | Check sensor and cabling, replace as necessary. |
| 578 | AL L1 T-Lube Oil Pan — Limit value 1 | L1 T-Lube Oil Pan has violated limit value 1. | |
| 579 | AL MD CAN Request Idle Speed | MD forced idle demand => node failure (node 3, 4 or 5) | |
| 580 | AL MD CAN Speed Limitation | MD speed limitation demand => node failure (node 3, 4 or 5) | |
| 581 | AL MD CAN Stop | MD CAN stop demand => node failure (node 3, 4 or 5) | |
| 593 | AL T-Lube Oil Pan Low (Option) — Yellow alarm; warning | T-Lube Oil Pan has violated the limit value (too cold); significantly increased engine wear. Engine start might be inhibited by the locomotive control system. | Extend preheating period; Request towing locomotive if required; Move locomotive into heated hall if necessary. |
| 594 | ALL1 UDV Defekt Rail 1 — Yellow alarm; warning | Pressure relief valve of first rail faulty. | Check pressure relief valve, replace as necessary. |
| 595 | ALL2 UDV Defekt Rail 1 — No alarm, fault is entered | Pressure relief valve of first rail faulty. | Check pressure relief valve, replace as necessary. |
| 596 | AL Develop PR Set — Yellow alarm; warning | Standard production data record available. The data record stored is for testing. | Contact Service. |
| 598 | AL L1 UDV Defekt Rail 2 — Yellow alarm; warning | Pressure relief valve of second rail faulty. | Check pressure relief valve, replace as necessary. |
| 599 | ALL2 UDV Defekt Rail 2 — No alarm, fault is entered | Pressure relief valve of second rail faulty. | Check pressure relief valve, replace as necessary. |
| 600 | SD T-Exhaust A+B — Red alarm; power reduction = 20% | Exhaust temperature sensor on A and B sides defective; short circuit or wire break. | Check sensors B4.21, B4.22, and cabling, replace if necessary. |
| 602 | AL CAN Engine Start Lock — Yellow alarm; warning | Start interlock initiated by plant. | Check plant configuration; Restart engine (> Page 27); Request towing locomotive if required. |
| 606 | AL Double Nodes Lost CAN 1+2 — Red alarm; forced idle | No communication between ADEC and PAU. | Check wiring and power supply of plant; Acknowledge alarm; Restart engine (> Page 27); Request towing locomotive if required. |
| 608 | AL Wiring PWM_CM6 — No alarm, fault is entered | Wire break or short circuit on channel PWM_CM6. | Check wiring to connected device or check connected device (actuator/sensor), replace if necessary. |
| 609 | AL Wiring PWM_CM7 — Yellow alarm; warning | Wire break or short circuit on channel PWM_CM7. | Check wiring to connected device or check connected device (actuator/sensor), replace if necessary. |
| 615 | AL Starter Not Engaged | Starter on CPM / POM could not be engaged. The starting sequence will be terminated when the number of automatic start attempts defined in PR 2.1090.134 is exhausted. Check CPM, starter and cabling. | Repeat starting attempt; Check CPM, starter and cabling. |
| 626 | AL Wiring PWM_CM8 — No alarm, fault is entered | Wire break or short circuit on channel PWM_CM8. | Check wiring to connected device or check connected device (actuator/sensor), replace if necessary. |
| 627 | AL Wiring PWM_CM9 — No alarm, fault is entered | Wire break or short circuit on channel PWM_CM9. | Check wiring to connected device or check connected device (actuator/sensor), replace if necessary. |
| 628 | AL Wiring PWM_CM10 — Yellow alarm; warning | Wire break or short circuit on channel PWM_CM10. | Check wiring to connected device or check connected device (actuator/sensor), replace if necessary. |
| 629 | AL AGR Throttle A Defect — Yellow alarm; warning | Actuator at EGR shutoff flap A or flap mechanism faulty. | Replace actuator or flap. |
| 630 | AL AGR Throttle B Defect — Yellow alarm; warning | Actuator at EGR shutoff flap B or flap mechanism faulty. | Replace actuator or flap. |
| 631 | AL Bypass Throttle Defect — Yellow alarm; warning | Actuator at bypass flap or flap mechanism faulty. | Replace actuator or flap. |
| 633 | SD P-Ambient Air (HDT2800) — Yellow alarm; warning | Humirel HDT2800 CAN sensor faulty; short circuit or wire break. | Check sensor B90 and wiring, replace as necessary. |
| 634 | SD TO-Ambient Air (HDT2800) — Yellow alarm; warning | TO ambient air HDT2800 CAN temperature sensor faulty; short circuit or wire break. | Check sensor B90 and wiring, replace as necessary. |
| 635 | SD Air Humidity (HDT2800) — Yellow alarm; warning | Air humidity CAN sensor faulty; short circuit or wire break. | Check sensor B90 and wiring, replace as necessary. |
| 636 | SD Level Lube Oil J1939 — Yellow alarm; warning | CAN lube oil level sensor faulty; short circuit or wire break. | Check sensor and wiring, replace as necessary. |
| 637 | SD T-Lube Oil Pan J1939 — Yellow alarm; warning | Oil pan CAN temperature sensor faulty; short circuit or wire break. | Check sensor and wiring, replace as necessary. |
| 640 | SD Smart NOx Oxidation Factor O2 — No alarm, fault is entered | Smart NOx sensor (oxidation factor O2) faulty; short circuit or wire break. | Check sensors B88.1, B88.2, and cabling, replace if necessary. |
| 647 | SD P-Exhaust Lambda — Yellow alarm; warning | Exhaust pressure sensor near lambda sensor faulty; short circuit or wire break. | Check sensor B91.3 and wiring, replace as necessary; Restart engine (> Page 27). |
| 648 | SD P-Charge Air B — Yellow alarm; power limitation < 20% | Charge-air pressure sensor on B-side faulty; short circuit or wire break. | Check sensor B10 and wiring, replace as necessary; Restart engine (> Page 27). |
| 662 | SD Smart NOx Heater Element — Yellow alarm; warning | SD Smart NOx heating element faulty; short circuit or wire break. | Check sensors B88.1, B88.2, and cabling, replace if necessary. |
| 663 | SD Smart NOx Concentration — Yellow alarm; warning | Smart NOx sensor (NOx concentration) faulty; short circuit or wire break. | Check sensors B88.1, B88.2, and cabling, replace if necessary. |
| 727 | ALL1 Delta T-NT Intercooler — Yellow alarm; warning | T-Max. Coolant Intercooler Exceeded L1. | Reduce power; Check intercooler and coolant cooler; Check charge-air coolant circuit. |
| 728 | AL L2 Delta T-NT Intercooler — No alarm, fault is entered | T-Max. Coolant Intercooler Exceeded L2. | Reduce power; Check intercooler and coolant cooler; Check charge-air coolant circuit. |
| 745 | AL Emission Fault — Red alarm; power reduction = 20% | Emission fault. | Reduce power; Check sensors and wiring. |
| 754 | SD Bosch LSU Lambda Sensor — Yellow alarm; warning | Bosch LSU lambda sensor faulty. | Check sensor and wiring, replace as necessary. |
| 757 | AL Lim T-Coolant NT-Fan — Yellow alarm; warning | Charge-air cooler coolant has exceeded limit value. | Check coolant level, top up if necessary; Check thermostat; Check air filter. |
| 796 | AL HI T-Charge Air B — Yellow alarm; warning | Charge-air temperature too high. | Reduce power; If fault code number 9 is signaled at the same time, then it has priority. |
| 797 | AL HIHI T-Charge Air B — Yellow alarm; power limitation < 20% | Charge-air temperature too high. | Reduce power; If fault code number 9 is signaled at the same time, then it has priority. |
| 806 | SD Charger 3 Speed — Yellow alarm; warning | Speed sensor of secondary turbocharger faulty; short circuit or wire break. | Check sensor B44.3 and wiring, replace as necessary (> Page 109). |
| 807 | SD Charger 4 Speed — Yellow alarm; warning | Speed sensor of secondary turbocharger faulty; short circuit or wire break. | Check sensor B44.4 and wiring, replace as necessary (> Page 109). |
| 832 | AL EIL Different Engine Number — Yellow alarm; warning | Different EIL engine number alarm | |
| 833 | AL Emission Warning — Yellow alarm; warning | Emission warning alarm. | Check flap control; Check sensors. |
| 834 | AL Gas Path Warning — Yellow alarm; warning | Gas path warning alarm. | Check flap control; Check sensors. |
| 835 | AL Gas Path Fault — Red alarm; power reduction = 20% | Gas path fault alarm. | Check flap control; Check sensors. |
| 843 | SD T-Charge Air before AGR — Yellow alarm; warning | Charge-air temperature sensor faulty; short circuit or wire break. | Check sensor B9.1 and wiring, replace as necessary (> Page 109). |
| 844 | AL HI T-Charge Air before AGR — Yellow alarm; warning | Charge-air temperature too high. | Reduce power. |
| 845 | AL HIHI T-Charge Air before AGR — Red alarm; power limitation = 20%; forced idle | Charge-air temperature too high. | Reduce power; Acknowledge alarm; Request towing locomotive if required. |
| 851 | External Start and HD too high — Red alarm; power reduction = 20% | ||
| 855 | AL Bypass Throttle 2 Defect — Yellow alarm; warning | Actuator at bypass flap or flap mechanism faulty. | Replace actuator or flap. |
| 872 | AL EGR A Fast learn failed — Yellow alarm; warning | XXXXX | DP xxx |
| 876 | AL EGR B Fast learn failed — Yellow alarm; warning | XXXXX | DP xxx |
| 877 | AL Bypass A Fast learn failed — Yellow alarm; warning | XXXXX | DP xxx |
| 878 | AL Bypass B Fast learn failed — Yellow alarm; warning | XXXXX | DP xxx |
| ADEC | Engine governor ADEC (ECU 7) for Series 4000 genset engines - Fault messages | ||
| AL MCR exceeded | DBR/MCR Function: MCR (Maximum Continuous Rating) is exceeded. | ||
| AL Open Load | Open load in injector cable of cylinder B2 | Check cable and solenoid if open load (e.g. replace injector) ==> after cycle curing of failure | |
| AL Power Stage Low | Internal error of electronic (electronic defect possible) | Start ITS ==> if electronic o.k. continue to pay attention to messages. If bit "1.1020.021" (Power Stage Failure: Stop Engine) set ==> Engine stop. | |
| AL Wiring TO 1 | Short circuit or open load on transistor output 1 (TO 1). | ||
| AL Wiring TO 2 | Short circuit or open load on transistor output 2 (TO 2). | ||
| AL Wiring TO 3 | Short circuit or open load on transistor output 3 (TO 3). | ||
| AL Wiring TO 4 | Short circuit or open load on transistor output 4 (TO 4). | ||
| AL Wiring TOP 1 | Short circuit or open load on transistor output plant 1 (TOP 1). | ||
| AL Wiring TOP 2 | Short circuit or open load on transistor output plant 2 (TOP 2). | ||
| AL Wiring TOP 3 | Short circuit or open load on transistor output plant 3 (TOP 3). | ||
| AL Wiring TOP 4 | Short circuit or open load on transistor output plant 4 (TOP 4). | ||
| Alarm Cooldown=4 | Status Only=0, Pre-Alarm=1, Alarm=2, Alarm Unload=3, Alarm Cooldown=4, Alarm Unload Cooldown=5 | ||
| Alarm Unload Cooldown=5 | Status Only=0, Pre-Alarm=1, Alarm=2, Alarm Unload=3, Alarm Cooldown=4, Alarm Unload Cooldown=5 | ||
| Alarm Unload=3 | Status Only=0, Pre-Alarm=1, Alarm=2, Alarm Unload=3, Alarm Cooldown=4, Alarm Unload Cooldown=5 | ||
| Alarm=2 | Status Only=0, Pre-Alarm=1, Alarm=2, Alarm Unload=3, Alarm Cooldown=4, Alarm Unload Cooldown=5 | ||
| B4.21 | Exhaust temperature sensor B4.21 violated the upper limit value, indicating a high exhaust gas temperature on bank A at LOP | Check individual exhaust gas temperatures and replace the engine oil filter if necessary | |
| B5.1 | Differential oil pressure sensor B5.1 exceeded the upper limit value | Replace the engine oil filter and inspect engine wiring | |
| B5.3 | Differential oil pressure sensor B5.3 exceeded the upper limit value | Replace the engine oil filter and inspect engine wiring | |
| B6.1 | Signal from coolant temperature sensor B6.1 on the coolant distribution housing is faulty or missing | Check engine wiring; contact Service for assistance | |
| B7.1 | Lube oil temperature sensor B7.1 exceeded the limit value, prompting a reduction in power to avoid overheating | Check the operation of the cooler and fan | |
| B9.1 | Charge-air temperature sensor B9.1 exceeded the limit value, causing a high reading | Check the charge-air cooler coolant discharge and adjust as necessary | |
| B34.1 | Fuel pressure sensor B34.1 at the HP fuel system experienced a pressure increase that is too low | Check fuel reserves and supply; replace the fuel filter if necessary | |
| B48.1 | Faulty pressure sensor B48.1 | Contact service or replace affected components | |
| HI T-Coolant Red | Redundant coolant temperature too high (limit 1) | Check circulation of coolant | |
| LO P-Lube Oil Red | Redundant pressure of lube oil too low (limit 1). | ||
| Pre-Alarm=1 | Status Only=0, Pre-Alarm=1, Alarm=2, Alarm Unload=3, Alarm Cooldown=4, Alarm Unload Cooldown=5 | ||
| SD CAN OVERRIDE 253 | Missing Data CAN function not possible activate | Electronic-Service | |
| SD CAN SPEED DEMAND 250 | Missing Data CAN Speed Demand not valid if fault still valid => | Take the command to the RCS directly after power on, | |
| SD CAN STOP 249 | Missing Data CAN kein Engine-Stop | Electronic-Service | |
| SD CAN TEST OVERSP 254 | Missing Data CAN function not possible to activate | Electronic-Service | |
| SD CAN UP/DOWN 251 | Missing Data CAN No Anderung der _ | Electronic-Service | |
| SD CHARGER SPEED | 232 | Sensor defect, Short Circuit or Cable breakage togeschaltet Ablevel des Sensors check | Wiring und Sensor to B44 check | |
| SD CRANKSHAFT SPEED 230 | Sensor defect, Short Circuit or Cable breakage | Wiring und Sensor to B/3 check | |
| SD P-CHARGE AIR 208 | Sensor defect, Short Circuit or Cable breakage Xx X | Wiring und Sensor to BJO check | |
| SD P-CRANKCASE 214 | Sensor defect, Short Circuit or Cable breakage _ inactive | Wiring und Sensor to B50 check | |
| SD P-RAIL FUEL 215 | Sensor defect, Short Circuit or Cable breakage Notbetrieb | HD-Regler Wiring und Sensor to B48 check | |
| SD T-COOLANT 201 | Sensor defect, Short Circuit or Cable breakage inactive | Limit-Monitoring Wiring und Sensor to B6 check | |
| SD T-TE10 217 | Free Channel | ||
| SEO03 | Nd11 231 | Contact Service. | |
| SEO03 nd11 231 | High Temperature | Contact Service. | |
| SS P-Lube Oil Red | Redundant pressure of lube oil too low (limit 2). | ||
| SS T-Coolant Red | Redundant coolant temperature too high (limit 2) | Check circulation of coolant | |
| Status Only=0 | Status Only=0, Pre-Alarm=1, Alarm=2, Alarm Unload=3, Alarm Cooldown=4, Alarm Unload Cooldown=5 | ||
| SYS_ERR_SUPPLY | First line: C = Alarm was active during the last four hours Second line: Running text, providing more information about the fault currently displayed | ||
| SYS_ERR_TEMP | First line: A = Currently active alarms Second line: Running text, providing more information about the fault currently displayed | ||
| SYS_ERR_TEMP_SD | First line: # (2) = Alarm is no longer active, does not appear on next power-up Second line: Running text, providing more information about the fault currently displayed | ||
| TD P-Oil Sensor Deviation | Maximum deviation of P-Oil sensors | ||
| TD T-Coolant Sensor Deviation | Maximum deviation of T-Coolant sensors |
Compiled from MTU service manuals and controller documentation. 68 code numbers mean different things on different controllers; each meaning is listed with the models it applies to. Cause/remedy shown where extracted; always verify against the manual for your exact model.
HI T-Fuel — Limit value 1. Cause: Fuel temperature too high.. Remedy: Contact Service..
SS T-Fuel — Limit value 2. Cause: Fuel temperature too high; engine shutdown.. Remedy: Contact Service..
SS T-Fuel (Limit 2) — Red alarm; power limitation = 20%; forced idle. Cause: Fuel temperature too high.. Remedy: Acknowledge alarm.; Request towing locomotive if required..
HI T-Charge Air — Limit value 1. Cause: Charge-air temperature too high.. Remedy: Reduce power; Check intercooler..
SS T-Charge Air — Limit value 2. Cause: Charge-air temperature too high; engine shutdown.. Remedy: Reduce power; Check intercooler..
SS T-Charge Air (Limit 2) — Yellow alarm; power limitation < 20%. Cause: Charge-air temperature too high.. Remedy: Reduce power.; If fault code number 9 is signaled at the same time, then it has priority..
HI L1 T-Coolant Intercooler — Yellow alarm; warning. Cause: Coolant temperature in intercooler too high.. Remedy: Reduce power.; Check engine lines for leaks. Check coolant cooler for leaks, contamination and operation..
Coolant temperature in intercooler too high.. Remedy: 1. Reduce power. 2. Check engine lines for leaks. Check coolant cooler for leaks, contamination and operation..
SS T-Coolant Intercooler (Limit 2) — Yellow alarm; power limitation < 20%. Cause: Coolant temperature in intercooler too high.. Remedy: Reduce power.; Check engine lines for leaks. Check coolant cooler for leaks, contamination and operation.; Contact Service..
SS P-Lube Oil — Limit value 2. Cause: Lube oil pressure too low; engine shutdown.. Remedy: Check oil level, top up as necessary (→ Page 169); Attempt to restart engine (→ Page 55)..
SS P-Lube Oil (Limit 2) — Red alarm; engine stop. Cause: Lube oil pressure too low.. Remedy: Check oil level, top up as necessary (Page 87).; Acknowledge alarm.; Restart engine (Page 27).; Request towing locomotive if required..
HI T-Exhaust A — Limit value 1. Cause: Exhaust gas temperature (A-side) too high.. Remedy: Check cabling (→ Page 194); Contact Service..
SS T-Exhaust A — Limit value 2. Cause: Exhaust gas temperature (A-side) too high; engine shutdown.. Remedy: Check cabling (→ Page 194); Contact Service..