Yale fault codes & repair guides
All 129 codes· 50 per page · page 1 of 3
| Code | Controller | Issue summary | Repair manual |
|---|---|---|---|
| 51-2 | Controller / ECU (Engine Control Unit) or VSM (Vehicle System Manager) | Throttle Position Sensor Signals A and B Not Tracking Correctly | Full repair manual for code 51-2, Controller / ECU (Engine Control Unit) or VSM (Vehicle System Manager) |
| 51-31 | Vehicle Controller / Engine Control Unit (ECU) | Throttle Position Sensor 1 & 2 Out of Range | Full repair manual for code 51-31, Vehicle Controller / Engine Control Unit (ECU) |
| 51-7 | Engine Control Unit (ECU) or Vehicle System Manager (VSM) | Throttle Position Sensor Signals A and B Not At Commanded Value | Full repair manual for code 51-7, Engine Control Unit (ECU) or Vehicle System Manager (VSM) |
| 91-2 | Controller / Display System Controller (DSC) or Engine ECU | Accelerator Pedal Position Sensor Signals A and B Not Tracking Correctly | Full repair manual for code 91-2, Controller / Display System Controller (DSC) or Engine ECU |
| 94-0 | Engine Control Unit (ECU) | Primary Fuel Pressure Higher Than Expected | Full repair manual for code 94-0, Engine Control Unit (ECU) |
| 94-1 | Engine Control Module (ECM) / Vehicle System Manager (VSM) | Primary Fuel Pressure Lower Than Expected | Full repair manual for code 94-1, Engine Control Module (ECM) / Vehicle System Manager (VSM) |
| 96-3 | Controller (Vehicle System Manager / VSM) | Fuel Level Sensor / LPG Switch OORH (Out of Range High) | Full repair manual for code 96-3, Controller (Vehicle System Manager / VSM) |
| 96-4 | VSM (Vehicle System Manager) | Fuel Level Sensor / LPG Switch OORL (Out of Range Low) | Full repair manual for code 96-4, VSM (Vehicle System Manager) |
| 100-4 | Engine Control Module (ECM) | Engine Oil Pressure OORL | Full repair manual for code 100-4, Engine Control Module (ECM) |
| 105-3 | Engine ECU | Intake Air Temperature (IAT) Sensor OORH (Out of Range High) | Full repair manual for code 105-3, Engine ECU |
| 105-4 | Engine Control Unit (ECU) | Intake Air Temperature (IAT) Sensor OORL | Full repair manual for code 105-4, Engine Control Unit (ECU) |
| 108-1 | Engine Control Unit (ECU) | Barometric Pressure Below Acceptable Limit | Full repair manual for code 108-1, Engine Control Unit (ECU) |
| 110-3 | Engine Control Unit (ECU) / Engine Controller | Coolant Temperature Sensor OORH | Full repair manual for code 110-3, Engine Control Unit (ECU) / Engine Controller |
| 110-4 | Engine Control Module (ECM) / Engine/Fuel ECU | Coolant Temperature Sensor OORL | Full repair manual for code 110-4, Engine Control Module (ECM) / Engine/Fuel ECU |
| 135-16 | Engine Control Module (ECM) or Vehicle System Manager (VSM) | Fuel Air Pressure minus (MAP) OORH (GM LPG Only) / Fuel Absolute Pressure Minus (MAP) Too High | Full repair manual for code 135-16, Engine Control Module (ECM) or Vehicle System Manager (VSM) |
| 168-0 | Controller / ECU | System Battery Voltage OORH | Full repair manual for code 168-0, Controller / ECU |
| 168-1 | VSM (Vehicle System Manager) or ECU (Engine Control Unit) | System Battery Voltage OORL | Full repair manual for code 168-1, VSM (Vehicle System Manager) or ECU (Engine Control Unit) |
| 168-4 | VSM / ECU | System Battery Voltage OORL | Full repair manual for code 168-4, VSM / ECU |
| 177-3 | Transmission Control Unit (TCU) / Transmission ECM | Transmission Oil Temperature Sensor OORH (Out Of Range High) | Full repair manual for code 177-3, Transmission Control Unit (TCU) / Transmission ECM |
| 177-4 | TCU (Transmission Control Unit) or VSM (Vehicle System Manager) | Transmission Oil Temperature Sensor OORL (Out Of Range Low) | Full repair manual for code 177-4, TCU (Transmission Control Unit) or VSM (Vehicle System Manager) |
| 190-2 | Engine ECU or VSM | Engine RPM Sensor Output Is Less Than Engine Speed | Full repair manual for code 190-2, Engine ECU or VSM |
| 190-2 | Engine ECU or VSM | Crank Loss (CAM Pulse without Crank Pulse) | Full repair manual for code 190-2, Engine ECU or VSM |
| 190-4 | Engine Control Unit (ECU) or Vehicle System Manager (VSM) | Crank Loss (CAM Pulse without Crank Pulse) | Full repair manual for code 190-4, Engine Control Unit (ECU) or Vehicle System Manager (VSM) |
| 190-7 | Vehicle System Manager (VSM) or Engine Control Module (ECM) | Engine Speed Exceeds Command | Full repair manual for code 190-7, Vehicle System Manager (VSM) or Engine Control Module (ECM) |
| 190-8 | Engine Control Module (ECM) / Engine ECU | Crank/CAM Synchronization | Full repair manual for code 190-8, Engine Control Module (ECM) / Engine ECU |
| 515-0 | Engine Control Unit (ECU) | RPM Greater Than Throttle Command | Full repair manual for code 515-0, Engine Control Unit (ECU) |
| 521-3 | Vehicle System Controller (VSC) | Brake Pedal Position Sensor OORH | Full repair manual for code 521-3, Vehicle System Controller (VSC) |
| 521-4 | Controller / VSM (Vehicle System Manager) | Brake Pedal Position Sensor OORL (Out Of Range Low) | Full repair manual for code 521-4, Controller / VSM (Vehicle System Manager) |
| 651-5 | Engine Control Module (ECM) | GM Gas Drive Injector 1 Open Circuit, or Cummins-Code 322. See QSB 3.3L Troubleshooting and Repair | Full repair manual for code 651-5, Engine Control Module (ECM) |
| 652-5 | Engine Control Module (ECM) / Powertrain Control Module (PCM) | GM Gas Drive Injector 2 Open Circuit | Full repair manual for code 652-5, Engine Control Module (ECM) / Powertrain Control Module (PCM) |
| 653-5 | Engine Control Module (ECM) | Injector Solenoid Driver Cylinder 3 Circuit - Current Below Normal, or Open Circuit | Full repair manual for code 653-5, Engine Control Module (ECM) |
| 654-5 | Engine Control Module (ECM) / Engine Controller | Injector Solenoid Driver Cylinder 4 Circuit - Current Below Normal or Open Circuit | Full repair manual for code 654-5, Engine Control Module (ECM) / Engine Controller |
| 655-5 | Engine Control Unit (ECU) | GM Gas Drive Injector 5 Open Circuit | Full repair manual for code 655-5, Engine Control Unit (ECU) |
| 656-5 | Engine Control Unit (ECU) / Vehicle System Controller | GM Gas Drive Injector 6 Open Circuit | Full repair manual for code 656-5, Engine Control Unit (ECU) / Vehicle System Controller |
| 676-3 | VSM (Vehicle System Manager) | Glow Plug Relay Driver Output OORH (Out Of Range High) | Full repair manual for code 676-3, VSM (Vehicle System Manager) |
| 880-4 | VSM (Vehicle System Manager) | Stop Lamp Driver Output OORL (Out Of Range Low) | Full repair manual for code 880-4, VSM (Vehicle System Manager) |
| 1079-31 | Vehicle System Manager (VSM) or Engine Control Module (ECM) / Main Controller | 5VE1 & 5VE2 Simultaneously OORH | Full repair manual for code 1079-31, Vehicle System Manager (VSM) or Engine Control Module (ECM) / Main Controller |
| 1239-7 | Engine Control Module (ECM) / Controller | Fuel Run-Out Longer Than Expected | Full repair manual for code 1239-7, Engine Control Module (ECM) / Controller |
| 2000-12 | VSM (Vehicle System Manager) or Engine ECU | CAN Tx Failure | Full repair manual for code 2000-12, VSM (Vehicle System Manager) or Engine ECU |
| 2000-14 | Vehicle System Manager (VSM) or Display/Instrument Cluster | CANbus Address Conflict Failure | Full repair manual for code 2000-14, Vehicle System Manager (VSM) or Display/Instrument Cluster |
| 2023-12 | Instrument Panel Display / Vehicle System Manager (VSM) | CANbus Error With Display | Full repair manual for code 2023-12, Instrument Panel Display / Vehicle System Manager (VSM) |
| 2350-3 | Vehicle System Manager (VSM) / Main Controller | Front Work Lights Relay (RL4) Driver Output OORH (Out Of Range High) | Full repair manual for code 2350-3, Vehicle System Manager (VSM) / Main Controller |
| 520260-3 | Engine Control Module (ECM) / Engine ECU | Electronic Pressure Regulator (EPR) OORH (Out of Range High) | Full repair manual for code 520260-3, Engine Control Module (ECM) / Engine ECU |
| 520260-4 | Engine Control Module (ECM) | Electronic Pressure Regulator (EPR) OORL (Out of Range Low) | Full repair manual for code 520260-4, Engine Control Module (ECM) |
| 522120-1 | VSM or TCU | Engine RPM Higher than XMSN Limit | Full repair manual for code 522120-1, VSM or TCU |
| 522125-8 | TCU | Transmission Range1 Valve Current Out Of Range (TCU) | Full repair manual for code 522125-8, TCU |
| 522585-2 | Mazda Gas ECU | Engine RPM Sensor (Mazda Gas ECU) | Full repair manual for code 522585-2, Mazda Gas ECU |
| 522592-0 | Engine ECU / Controller | EPR Pressure Greater Than Commanded | Full repair manual for code 522592-0, Engine ECU / Controller |
| 522592-1 | Engine Control Unit (ECU) | EPR Pressure Less Than Commanded | Full repair manual for code 522592-1, Engine Control Unit (ECU) |
| 522593-12 | Engine Control Unit (ECU) | CANbus Communication Loss - ECU to EPR | Full repair manual for code 522593-12, Engine Control Unit (ECU) |