69 Ford generator fault/alarm codes with symptom, cause and remedy — compiled from Ford service and controller documentation.
| Code | Meaning / symptom | Cause | Remedy |
|---|---|---|---|
| 12 | THROTTLE POSITION LOW | ||
| 14 | MANIFOLD ABSOLUTE PRESSURE LOW | ||
| 21 | Overspeed Protection | ||
| 22 | THROTTLE POSITION HIGH | ||
| 24 | MANIFOLD ABSOLUTE PRESSURE HIGH | ||
| 31 | FUEL PUMP VOLTAGE LOW | ||
| 32 | HEATED OXYGEN SENSOR VOLTAGE LOW | ||
| 33 | COOLANT TEMPERATURE EXCEEDED 255°F | ||
| 42 | HEATED OXYGEN SENSOR VOLTAGE HIGH | ||
| 483 | COOLANT TEMPERATURE LESS THAN -50°F | ||
| 61 | IGNITION VOLTAGE LOW | ||
| 62 | IGNITION VOLTAGE HIGH | ||
| All hydraulic functions inoperable | All hydraulic functions inoperable | Check error code at ground control. Hydraulic enable valve. Pump stroker valve. Low fluid in reservoir. Hydraulic pump defective. | Faulty Deadman button or foot switch. Wafer in hydraulic fluid. Improper oil viscosity. Hydraulic fittings loose or ports open. |
| CGL | Check Gauges Lamp | ||
| DTC 12 | Throttle Position (TP) Sensor Low Voltage | ||
| DTC 14 | Manifold Absolute Pressure (MAP) Sensor Low Voltage | ||
| DTC 21 | Overspeed | ||
| DTC 22 | Throttle Position (TP) Sensor | ||
| DTC 23 | Over Maximum Drive-By-Wire | ||
| DTC 24 | Manifold Absolute Pressure (MAP) Sensor High Voltage | ||
| DTC 31 | Fuel Pump Low Voltage | ||
| DTC 32 | HO2S Sensor Low Voltage | ||
| DTC 33 | Engine Coolant Temperature | ||
| DTC 41 | Fuel Pump High Voltage | ||
| DTC 42 | HO2S Sensor High Voltage | ||
| DTC 43 | Engine Coolant Temperature | ||
| DTC 51 | Low Oil Pressure | ||
| DTC 52 | Crankshaft Position Sensor Intermittent Malfunction | ||
| DTC 53 | Camshaft Position Sensor Intermittent Malfunction | ||
| DTC 54 | ECM Fault Legal Operation | ||
| DTC 55 | ECM Fault Legal Interruption | ||
| DTC 56 | ECM Fault Computer Operating Properly (COP) Failure | ||
| DTC 61 | System Voltage Low | ||
| DTC 62 | System Voltage High | ||
| E3 | Evaporative Emissions System Leak | ||
| FAULT 1 or FAULT 2 | Engine shuts down immediately, engine runs for several seconds and then shuts down, or engine continues to run. | ||
| FuelSys006 | Fuel System Fault | ||
| HI ENG TEMP | HI ENG TEMP lamp lights. Engine shuts down. | Indicates engine has overheated (engine temperature has risen above 215° F/102° C) or coolant level is low (sets with coolant level sensor). Allow engine to cool down completely before proceeding with the following checks: a. Check coolant level and replenish if low. Look for possible coolant leakage points and repair if necessary. b. Check for obstructions to cooling airflow and correct as necessary. c. Check for a slipping fan belt and tighten if loose. d. Reset control and restart after locating and correcting problem. Contact an authorized service center if none of the above. | |
| LO FUEL | LO FUEL lamp lights. Engine continues to run. | Indicates gasoline fuel supply is running low. Check fuel supply and replenish as required. | |
| LO FUEL LAMP | LO FUEL LAMP lights. Engine shuts down and LO OIL PRES lamp lights. | Indicates engine has run out of fuel. Check fuel level and replenish as required. | |
| LO OIL PRES | LO OIL PRES lamp lights. Engine shuts down. | Indicates engine oil pressure has dropped to 25 psi (172 kPa). Check oil level and filters. If oil system is OK but oil level is low, replenish. Reset control and restart. Contact an authorized service center if oil pressure is not in the range of 40 to 65psi (275 to 448 kPa). | |
| LOW FUEL | Engine continues to run or is in standby mode. | Indicates fuel supply pressure is marginally low (5 inches [127 mm] WC or less). Check for partially closed shutoff valve, empty propane supply tank. For natural gas fueled sets, check with the gas utility. | |
| MIL | Malfunction Indicator Lamp | ||
| P0005 | Tank solenoid circuit fault. The SRM monitors tank solenoid circuit for open and short circuit faults. | Blown fuse, Short to voltage, Water in the harness connector, Open power circuit, Open GND circuit, Low battery voltage, Corrosion, Incorrect connections, Damaged tank solenoid coil | Check the FRPCM and SRM electrical connectors for damage, corrosion and water intrusion. Refer to the Tank Solenoid Electrical Check procedure in Diagnostic Tests and Procedures. |
| P0090 | Flow Control Solenoid (FCS) circuit fault. SRM monitors FCS circuit for open and short circuit faults. | Blown fuse, Debris in flow control solenoid forcing open, Damaged Flow control solenoid coil (FCS), Incorrect connections, Water in the harness connector, Ground circuit, Low battery voltage | Check the flow control solenoid electrical connector for damage, corrosion and water intrusion. Refer to the Return Valve Procedure in Diagnostic Tests and Procedures. |
| P009B | Bleed solenoid circuit fault. The SRM monitors bleed solenoid circuit for open and short circuit faults. | Short to voltage, Water in the harness connector, Open power circuit, Open GND circuit, Low battery voltage, Corrosion, Incorrect connections, Damaged bleed solenoid coil | Check the FRPCM and SRM electrical for damage, corrosion and water intrusion. Refer to the Fuel Rail Pressure Control Module Electrical Check procedure in Diagnostic Tests and Procedures. |
| P0701 | Platform Elevated, Operator Not Incapacitated, but Unit Will Not Respond to Platform Controls | Remove foot from foot switch. Push the red 'Emergency Stop' button. Evaluate the nature of the failure. Return to the ground, using the emergency pump and lowering procedure (see 'Emergency Pump' earlier in this section). If unable to return to the ground using the platform controls and the emergency pump, contact an experienced operator to lower the machine using the emergency pump from the remote control pendant (see 'Emergency Pump' earlier in this section). DO NOT TRY TO CLIMB DOWN THE BOOM. HAVE AN EXPERIENCED OPERATOR USE THE EMERGENCY PUMPS TO SAFELY LOWER THE PLATFORM. REPORT THE INCIDENT TO YOUR SUPERVISOR IMMEDIATELY. | |
| P0702 | Machine Elevated, with Operator Incapacitated at Platform Controls | Have someone summon first aid or rescue squad. Attempt to talk to operator before taking any rescue measures. Check to see if the operator is in a pinned position, or would be endangered if platform is moved, before attempting emergency lowering procedure. After establishing that the machine is not in contact with live power lines, lower the platform using the emergency lowering procedure (see 'Emergency Pump' earlier in this section). Attend to the operator and render first aid if necessary. | |
| P0703 | Platform in Contact with Live Power Lines and Operator Incapacitated | Contact authorized personnel to disconnect power supply touching the machine. Have someone summon first aid or rescue squad. If operator is unconscious, check to see if he is in a pinned position, or would be endangered if platform is moved. AFTER POWER IS CUT, use the emergency lowering procedure to bring platform with operator to a safe location (see 'Emergency Pump' earlier in this section). Attend to the operator and render first aid. | |
| P1378 | Fuel Injector Control Module System Voltage Low | ||
| P1379 | Fuel Injector Control Module System Voltage High | ||
| P1450 | Unable to Bleed Up Bleed Fuel Tank Vacuum | ||
| P1453 | Fuel Tank Pressure Relief Valve Malfunction | ||
| P1456 | Fuel Tank Temperature Sensor Circuit Malfunction | ||
| P2195 | Heated Exhaust Gas Oxygen Sensor Stuck | ||
| P25B0 | Fuel Level Sensor “A” Stuck | ||
| P2632 | Fuel Pump “B” Control Circuit/Open | ||
| P2665 | Fuel Shutoff Valve “B” Control Circuit/Open | ||
| P26B3 | Fuel Shutoff Valve “A” Control Circuit Performance/Stuck Off | ||
| P26B5 | Fuel Shutoff Valve “B” Control Circuit Performance/Stuck Off | ||
| P26EA | Fuel Pump Control Module “B” U0108 Lost Communication with Alternative Fuel Control Module | ||
| PCV System Malfunction | Loping or rough engine idle. | ||
| PRE HI ENGINE TEMP | PRE HI ENGINE TEMP lamp lights. Engine continues to operate. | Indicates engine has begun to overheat and engine temperature has risen to approximately 205° F (97° C). If generator is powering non-critical and critical loads and cannot be shut down, use the following: a. Reduce load if possible by turning off non-critical loads. b. Check air inlets and outlets and remove any obstructions to airflow. If engine can be stopped, follow procedure in step 3. | |
| PRE LO OIL PRES | PRE LO OIL PRES lamp lights. Engine continues to operate. | Indicates engine oil pressure has dropped to 30 psi (207 kPa). If generator is powering critical loads and cannot be shut down, wait until next shutdown period and then follow step 5 procedure. If engine can be stopped, follow procedures in step 5. | |
| U0108 | Lost Communication with Alternative Fuel Control Module | ||
| U0109 | Lost Communication with Fuel Pump Control Module “A” | ||
| U016C | Lost Communication with Fuel Pump Control Module “B” | ||
| U210B | Lost Communication Between Fuel Pump Control Module “A” and Restraint Control Module | ||
| U210C | Lost Communication Between Fuel Pump Control Module “B” and Restraint Control Module |
Compiled from Ford service manuals and controller documentation. Cause/remedy shown where extracted; always verify against the manual for your exact model.
All hydraulic functions inoperable. Cause: Check error code at ground control. Hydraulic enable valve. Pump stroker valve. Low fluid in reservoir. Hydraulic pump defective.. Remedy: Faulty Deadman button or foot switch. Wafer in hydraulic fluid. Improper oil viscosity. Hydraulic fittings loose or ports open..