129 SDMO generator fault/alarm codes with symptom, cause and remedy — compiled from SDMO service and controller documentation.
| Code | Meaning / symptom | Cause | Remedy |
|---|---|---|---|
| 000 | The general fault LED will light up flashing and the following message will appear: 000 010 represents a fault code. Refer to the list of fault codes in Section 4.4. | ||
| 005 | High Pressure Fuel Pump Solenoid Number 1 Circuit Has High Resistance | Check Pump Wiring | |
| 007 | High Pressure Fuel Pump Not Able to Meet Required Rail Pressure | Check Fuel Filter and Lines | |
| 010 | "STOP" fault activated if the "STOP" button is pressed whilst the "AUT" LED is flashing to indicate that the generating set is operating in automatic mode | ||
| 50-10 011813 PN=115 | Improper type of oil | Drain, fill crankcase with oil of proper viscosity and quality. | |
| 303 | Underspeed fault — indicates an incorrect rotation speed (below 1000 rpm) | ||
| 405 | Low fuel level alarm — Indicates the need to fill up with fuel | ||
| 505 | An SOS message appears flashing with a fault code. | ||
| 505 | The fault or alarm screen will disappear once the fault or alarm has been removed. | ||
| 505 | Oil pressure fault: Indicates that the oil pressure is incorrect. | ||
| 505 | Engine temperature fault: Indicates that the engine temperature is too high. | ||
| 505 | Non-starting fault: Indicates that there have been three consecutive unsuccessful starting attempts. | ||
| 505 | Overspeed fault: Indicates an excessive generating set running speed. | ||
| 505 | "Alternator charging fault | ||
| 000970 | External Shutdown Switch Activated | Not Engine Fault. Check Other Shutdown Devices | |
| 000971 | External Fuel Derate Switch Active | Not Engine Fault. Check Other Shutdown Devices | |
| 001069 | Tire Size Invalid | Contact Servicing Dealer | |
| 001079 | Tire Size Error | Contact Servicing Dealer | |
| 001080 | Sensor Supply 1 Voltage High | Check Wiring | |
| 001080 | Fuel Rail Pressure Sensor Supply Voltage Low | Check Wiring | |
| 001109 | Engine Protection Shutdown Warning | Shut Down Engine, Check Diagnostic Trouble Codes | |
| 001110 | Engine Protection Shutdown Active | Shut Down Engine, Check Diagnostic Trouble Codes | |
| 001347 | High Pressure Fuel Pump Control Valve Signal Out of Range High | Contact Servicing Dealer | |
| 001568 | Requested Torque Curve Signal Unreliable | Contact Servicing Dealer | |
| 001569 | Engine in Derate Condition | Check Diagnostic Trouble Codes | |
| 002000 | Security Violation | Contact Servicing Dealer | |
| C3... | Emergency stop or external emergency stop fault (see Section 3.4). | ||
| C203 | Low coolant level fault — indicates that the level of coolant is low in the radiator (linked to a two second time delay). Or Overload or short-circuit fault (optional): with the circuit breaker SD contact closing (overload or short-circuit), the generating set switches off immediately also causing the main circuit breaker to be triggered | ||
| C203 | Additional fault linked to message opposite — Differential fault (optional): with a differential fault causing the activation of the differential relay, the generating set stops immediately also causing the main circuit breaker to be tripped | ||
| Differential fault | (1) Differential fault (optional): with a differential fault causing the activation of the differential relay, the generating set stops immediately also causing the main circuit breaker to be tripped. | ||
| E2EC39 | Emergency stop or external emergency stop fault (see Section 3.4) | Resolve the fault which has required the emergency stop button to be pressed; release the emergency stop button by turning it clockwise; acknowledge (reset) the fault by moving the key switch to OFF, waiting for the "ON" LED to go out completely and then moving the key switch to ON | |
| Emergency stop | Emergency stop activated | ||
| Insulation fault | (2) Insulation fault (optional): with an insulation fault causing the activation of the control unit performing insulation, the generating set stops immediately. Associated message | ||
| Low coolant level fault | Indicates that the level of coolant is low in the radiator (linked to a two second time delay). Or Overload or short-circuit fault (optional): with the circuit breaker SD contact closing (overload or short-circuit), the generating set switches off immediately also causing the main circuit breaker to be triggered. Associated message | ||
| Low fuel level | Fuel level is low | ||
| Min/max alternator | Min/max alternator | ||
| Min/max alternator | Overspeed | ||
| Min/max battery voltage | Battery voltage out of range | ||
| Min/max battery voltage | In/max battery voltage | ||
| No start-up | Engine does not start | ||
| No start-up | No start-up | ||
| O10 | The () LED lights up red and remains lit, the PAS 1: ashes and the following screen appears: 505 ririrt ul This screen displays the SOS message and the emergency stop fault code (also see section 4.4). | ||
| Oil pressure | Oil pressure | ||
| Overload or short-circuit fault | With the circuit breaker SD contact closing (overload or short-circuit), the generating set switches off immediately also causing the main circuit breaker to be triggered. | ||
| Overspeed | Engine speed exceeds safe limits | ||
| rr | "STOP" fault activated if the "STOP" button is pressed whilst the "AUT" LED is flashing to indicate that the generating set is operating in automatic mode. | ||
| Sa | Low fuel level fault: Indicates the need to top up the fuel. | ||
| SOS | The general fault LED will light up flashing and the following message will appear: This screen displays the SOS message and the emergency stop fault code (also see section 4.4). | To restart, it is necessary to resolve the fault which has required the emergency stop button to be pressed, release the emergency stop button by turning it clockwise, and acknowledge (reset) the fault by moving the key switch to OFF, waiting for the 'ON' LED to go out completely and then moving the key switch to ON. | |
| SPN 000028 FMI 03 | Throttle #3 Signal Out of Range High | Check Sensor and Wiring | |
| SPN 000028 FMI 04 | Throttle #3 Signal Out of Range Low | Check Sensor and Wiring | |
| SPN 000029 FMI 03 | Throttle #2 Signal Out of Range High | Check Sensor and Wiring | |
| SPN 000029 FMI 04 | Throttle #2 Signal Out of Range Low | Check Sensor and Wiring | |
| SPN 000084 FMI 31 | Vehicle Speed Signal Unreliable | Contact Servicing Dealer | |
| SPN 000091 FMI 03 | Throttle #1 Signal Out of Range High | Check Switch and Wiring | |
| SPN 000091 FMI 04 | Throttle #1 Signal Out of Range Low | Check Switch and Wiring | |
| SPN 000091 FMI 09 | Throttle #1 Communication Signal Erratic | Check Sensor and Wiring | |
| SPN 000094 FMI 03 | Low Pressure Fuel Signal Out of Range High | Check Sensor and Wiring | |
| SPN 000094 FMI 04 | Low Pressure Fuel Signal Out of Range Low | Check Sensor and Wiring | |
| SPN 000094 FMI 10 | Low Pressure Fuel Rate of Change Abnormal | Contact Servicing Dealer | |
| SPN 000094 FMI 13 | Low Pressure Fuel Out of Calibration | Contact Servicing Dealer | |
| SPN 000094 FMI 17 | High Pressure Fuel System- Pressure Slightly Low | Contact Servicing Dealer | |
| SPN 000097 FMI 00 | Water in Fuel Continuously Detected | Contact Servicing Dealer | |
| SPN 000097 FMI 03 | Water-in-Fuel Signal Out of Range High | Check Sensor and Wiring | |
| SPN 000097 FMI 04 | Water-in-Fuel Signal Out of Range Low | Check Sensor and Wiring | |
| SPN 000097 FMI 16 | Water in Fuel Detected | Stop and Drain Water Separator | |
| SPN 000100 FMI 01 | Engine Oil Pressure Signal Extremely Low | Check Oil Level | |
| SPN 000100 FMI 03 | Engine Oil Pressure Signal Out of Range High | Check Sensor and Wiring | |
| SPN 000100 FMI 04 | Engine Oil Pressure Signal Out of Range Low | Check Sensor and Wiring | |
| SPN 000100 FMI 18 | Engine Oil Pressure Signal Moderately Low | Check Oil Level | |
| SPN 000105 FMI 00 | Intake Manifold Air Temperature Signal Extremely High | Check Air Cleaner, Aftercooler, or Room Temperature | |
| SPN 000105 FMI 03 | Intake Manifold Air Temperature Signal Out of Range High | Check Sensor and Wiring | |
| SPN 000105 FMI 04 | Intake Manifold Air Temperature Signal Out of Range Low | Check Sensor and Wiring | |
| SPN 000105 FMI 16 | Intake Manifold Air Temperature Signal Moderately High | Check Air Cleaner, Aftercooler, or Room Temperature | |
| SPN 000107 FMI 00 | Air Filter Pressure Differential Extremely High | Check for plugged air filter | |
| SPN 000110 FMI 00 | Engine Coolant Temperature Signal Extremely High | Check Cooling System, Reduce Power | |
| SPN 000110 FMI 03 | Engine Coolant Temperature Signal Out of Range High | Check Sensor and Wiring | |
| SPN 000110 FMI 04 | Engine Coolant Temperature Signal Out of Range Low | Check Sensor and Wiring | |
| SPN 000110 FMI 15 | Engine Coolant Temperature Signal Slightly High | Check Cooling System, Reduce Power | |
| SPN 000110 FMI 16 | Engine Coolant Temperature Signal Moderately High | Check Cooling System, Reduce Power | |
| SPN 000111 FMI 01 | Engine Coolant Level Low | Check Operator's Manual, "Adding Coolant" | |
| SPN 000158 FMI 17 | ECU Power Down Error (Internal ECU Problem) | Contact Servicing Dealer | |
| SPN 000160 FMI 02 | Axle Speed Signal Unreliable | Contact Servicing Dealer | |
| SPN 000174 FMI 00 | Fuel Temperature Signal Extremely High | Add Fuel or Switch Fuel Tanks | |
| SPN 000174 FMI 03 | Fuel Temperature Signal Out of Range High | Check Sensor and Wiring | |
| SPN 000174 FMI 04 | Fuel Temperature Signal Out of Range Low | Check Sensor and Wiring | |
| SPN 000174 FMI 16 | Fuel Temperature Signal Moderately High | Add Fuel or Switch Fuel Tanks | |
| SPN 000189 FMI 00 | Engine Speed Derate Condition Exists | Check Diagnostic Trouble Codes or Contact Servicing Dealer | |
| SPN 000190 FMI 00 | Engine Speed Extremely High | Reduce Engine Speed | |
| SPN 000190 FMI 16 | Engine Speed Moderately High | Reduce Engine Speed | |
| SPN 000611 FMI 03 | Injector Shorted to Power | Check Wiring | |
| SPN 000611 FMI 04 | Injector Shorted to Ground | Check Wiring | |
| SPN 000620 FMI 03 | Sensor Supply 2 Voltage High | Check Wiring | |
| SPN 000620 FMI 04 | Sensor Supply 2 Voltage Low | Check Wiring | |
| SPN 000627 FMI 01 | All Injector Currents Are Low | Check Battery Voltage and Wiring | |
| SPN 000629 FMI 13 | ECU Programming Error | Contact Service Dealer | |
| SPN 000636 FMI 02 | Engine Position Sensor Signal Unreliable | Check Sensor and Wiring | |
| SPN 000636 FMI 08 | Engine Position Sensor Signal Missing | Check Sensor and Wiring | |
| SPN 000636 FMI 10 | Engine Position Sensor Signal Rate of Change Abnormal | Check Sensor and Wiring | |
| SPN 000637 FMI 02 | Engine Timing Sensor Signal Unreliable | Check Sensor and Wiring | |
| SPN 000637 FMI 07 | Engine Timing and Position Sensors Out of Sync | Check Sensor and Wiring | |
| SPN 000637 FMI 08 | Engine Timing Sensor Signal Missing | Check Sensor and Wiring | |
| SPN 000637 FMI 10 | Engine Timing Signal Rate of Change Abnormal | Check Sensor and Wiring | |
| SPN 000639 FMI 13 | CAN Bus Error (Communication network problem) | Contact Servicing Dealer | |
| SPN 000651 FMI 05 | Injector Number 1 Circuit Has High Resistance | Check Injector Wiring or Injector Solenoid | |
| SPN 000651 FMI 06 | Injector Number 1 Circuit Has Low Resistance | Check Injector Wiring or Injector Solenoid | |
| SPN 000651 FMI 07 | Injector Number 1 Not Responding | Injector Failed or Flow Limiter Closed | |
| SPN 000652 FMI 05 | Injector Number 2 Circuit Has High Resistance | Check Injector Wiring or Injector Solenoid | |
| SPN 000652 FMI 06 | Injector Number 2 Circuit Has Low Resistance | Check Injector Wiring or Injector Solenoid | |
| SPN 000652 FMI 07 | Injector Number 2 Not Responding | Injector Failed or Flow Limiter Closed | |
| SPN 000653 FMI 05 | Injector Number 3 Circuit Has High Resistance | Check Injector Wiring or Injector Solenoid | |
| SPN 000653 FMI 06 | Injector Number 3 Circuit Has Low Resistance | Check Injector Wiring or Injector Solenoid | |
| SPN 000653 FMI 07 | Injector Number 3 Not Responding | Injector Failed or Flow Limiter Closed | |
| SPN 000654 FMI 05 | Injector Number 4 Circuit Has High Resistance | Check Injector Wiring or Injector Solenoid | |
| SPN 000654 FMI 06 | Injector Number 4 Circuit Has Low Resistance | Check Injector Wiring or Injector Solenoid | |
| SPN 000654 FMI 07 | Injector Number 4 Not Responding | Injector Failed or Flow Limiter Closed | |
| SPN 000655 FMI 05 | Injector Number 5 Circuit Has High Resistance | Check Injector Wiring or Injector Solenoid | |
| SPN 000655 FMI 06 | Injector Number 5 Circuit Has Low Resistance | Check Injector Wiring or Injector Solenoid | |
| SPN 000655 FMI 07 | Injector Number 5 Not Responding | Injector Failed or Flow Limiter Closed | |
| SPN 000656 FMI 05 | Injector Number 6 Circuit Has High Resistance | Check Injector Wiring or Injector Solenoid | |
| SPN 000656 FMI 06 | Injector Number 6 Circuit Has Low Resistance | Check Injector Wiring or Injector Solenoid | |
| SPN 000656 FMI 07 | Injector Number 6 Not Responding | Injector Failed or Flow Limiter Closed | |
| SPN 000898 FMI 09 | Vehicle Speed or Torque Message Unreliable | Contact Servicing Dealer | |
| SPN 000970 FMI 31 | External Shutdown Switch Activated | Not Engine Fault. Check Other Shutdown Devices | |
| SPN 000971 FMI 31 | External Fuel Derate Switch Active | Not Engine Fault. Check Other Shutdown Devices | |
| SPN 001069 FMI 09 | Tire Size Invalid | Contact Servicing Dealer | |
| SPN 001069 FMI 31 | Tire Size Error | Contact Servicing Dealer | |
| SPN 001079 FMI 03 | Sensor Supply 1 Voltage High | Check Wiring | |
| SPN 001079 FMI 04 | Sensor Supply 1 Voltage Low | Check Wiring | |
| SPN 001080 FMI 03 | Fuel Rail Pressure Sensor Supply Voltage High | Check Wiring | |
| SPN 001080 FMI 04 | Fuel Rail Pressure Sensor Supply Voltage Low | Check Wiring | |
| SPN 001109 FMI 31 | Engine Protection Shutdown Warning | Shut Down Engine, Check Diagnostic Trouble Codes | |
| SPN 001110 FMI 31 | Engine Protection Shutdown Active | Shut Down Engine, Check Diagnostic Trouble Codes | |
| SPN 001347 FMI 03 | High Pressure Fuel Pump Control Valve Signal Out of Range High | Contact Servicing Dealer | |
| SPN 001347 FMI 05 | High Pressure Fuel Pump Solenoid Number 1 Circuit Has High Resistance | Check Pump Wiring | |
| SPN 001347 FMI 07 | High Pressure Fuel Pump Not Able to Meet Required Rail Pressure | Check Fuel Filter and Lines | |
| SPN 001568 FMI 02 | Requested Torque Curve Signal Unreliable | Contact Servicing Dealer | |
| SPN 001569 FMI 31 | Engine in Derate Condition | Check Diagnostic Trouble Codes | |
| SPN 002000 FMI 13 | Security Violation | Contact Servicing Dealer | |
| STOP | Activated if the 'STOP' button is pressed whilst the 'AUT' LED is flashing to indicate that the generating set is operating in automatic mode. Associated message | ||
| Water temperature | Water temperature |
Compiled from SDMO service manuals and controller documentation. 6 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.
High Pressure Fuel Pump Solenoid Number 1 Circuit Has High Resistance. Remedy: Check Pump Wiring.
High Pressure Fuel Pump Not Able to Meet Required Rail Pressure. Remedy: Check Fuel Filter and Lines.
Improper type of oil. Remedy: Drain, fill crankcase with oil of proper viscosity and quality..
External Shutdown Switch Activated. Remedy: Not Engine Fault. Check Other Shutdown Devices.
External Fuel Derate Switch Active. Remedy: Not Engine Fault. Check Other Shutdown Devices.
Tire Size Invalid. Remedy: Contact Servicing Dealer.
Tire Size Error. Remedy: Contact Servicing Dealer.
Engine Protection Shutdown Warning. Remedy: Shut Down Engine, Check Diagnostic Trouble Codes.
Engine Protection Shutdown Active. Remedy: Shut Down Engine, Check Diagnostic Trouble Codes.
High Pressure Fuel Pump Control Valve Signal Out of Range High. Remedy: Contact Servicing Dealer.
Requested Torque Curve Signal Unreliable. Remedy: Contact Servicing Dealer.
Engine in Derate Condition. Remedy: Check Diagnostic Trouble Codes.
Security Violation. Remedy: Contact Servicing Dealer.