GM fault codes
17,703 codes · 2,212 vehicle records · 180 ECU records · 10,756 live-data parameters
Codes 17,703
| Code | Description | Brands | System |
|---|---|---|---|
| P1B72 | Battery temperature runaway during heating | 13 | Powertrain |
| P1B73 | Temperature sensor fault | 13 | Powertrain |
| P1B74 | Wave cycle injected into insulation monitoring module, not OK | 14 | Powertrain |
| P1B75 | On-board charging CP signal abnormal | 13 | Powertrain |
| P1B76 | Battery chamber inlet temperature sampling line short to power | 12 | Powertrain |
| P1B77 | Battery chamber inlet temperature sampling line short to ground | 13 | Powertrain |
| P1B78 | Battery chamber inlet temperature sampling line disconnected | 12 | Powertrain |
| P1B79 | Battery chamber outlet temperature sampling line short to power | 12 | Powertrain |
| P1B7A | Battery chamber outlet temperature sampling line short to ground | 10 | Powertrain |
| P1B7B | Battery chamber outlet temperature sampling line disconnected | 10 | Powertrain |
| P1B7C | System clock abnormal | 10 | Powertrain |
| P1B7D | Sampling chip self-test failed | 10 | Powertrain |
| P1B7E | BMS discharge loop interlock hardware failure | 9 | Powertrain |
| P1B7F | BMS charging loop interlock hardware failure | 8 | Powertrain |
| P1B80 | Ignition signal check-back circuit fault | 10 | Powertrain |
| P1B81 | Main positive relay check-back circuit fault | 11 | Powertrain |
| P1B82 | Negative relay check-back circuit fault | 11 | Powertrain |
| P1B83 | Pre-charge relay check-back circuit fault | 10 | Powertrain |
| P1B84 | Interlock loop check-back circuit fault | 10 | Powertrain |
| P1B85 | Fan and its circuit failure | 10 | Powertrain |
| P1B86 | Unilateral fault during charging | 8 | Powertrain |
| P1B87 | Insulation detection failed | 10 | Powertrain |
| P1B88 | Vehicle charging interlock loop abnormal | 9 | Powertrain |
| P1B89 | Battery temperature sampling line disconnected | 8 | Powertrain |
| P1B8A | Battery cell low temperature failure in non-charged state | 8 | Powertrain |
| P1B8B | Battery cell high temperature failure in non-charging state | 8 | Powertrain |
| P1B8C | Insulation module hardware fault | 8 | Powertrain |
| P1B8D | Hybrid/EV-batteri 57 kretsytelse | 9 | Powertrain |
| P1B8E | Battery pack total voltage sampling loop fault | 9 | Powertrain |
| P1B8F | Too low total voltage of battery pack | 8 | Powertrain |
| P1B90 | Akulaadi väga kõrge | 10 | Powertrain |
| P1B91 | Current sampling line disconnected | 10 | Powertrain |
| P1B92 | Battery cell low temperature fault in charging state | 10 | Powertrain |
| P1B93 | Battery cell high temperature fault in charging state | 10 | Powertrain |
| P1B94 | Pre-charge short circuit | 10 | Powertrain |
| P1B95 | Kõrgepinge aku paki kulumine | 10 | Powertrain |
| P1B96 | Hybrid/EV-batteri 60 kretsytelse | 10 | Powertrain |
| P1B97 | Battery pack pre-charge relay control line short to ground | 10 | Powertrain |
| P1B98 | Battery pack cell undervoltage | 9 | Powertrain |
| P1B99 | Battery pack cell overvoltage | 9 | Powertrain |
| P1B9A | Total voltage of battery pack is undervoltage | 9 | Powertrain |
| P1B9B | Battery pack total voltage overvoltage fault | 9 | Powertrain |
| P1B9C | Hybrid/EV battery 62 circuit performance | 10 | Powertrain |
| P1B9D | Charger over- and under-voltage fault | 8 | Powertrain |
| P1B9E | Charger low voltage temperautre fault | 8 | Powertrain |
| P1B9F | Hybrid/EV-batteri 63 kretsytelse | 7 | Powertrain |
| P1BA0 | Hybrid/EV battery 63 circuit low voltage | 11 | Powertrain |
| P1BA1 | Hybrid/EV battery 63 circuit high voltage | 12 | Powertrain |
| P1BA2 | Fan feedback short to ground | 11 | Powertrain |
| P1BA3 | Fan feedback short to power | 10 | Powertrain |
Some brand data is extracted from diagnostic files and may contain manufacturer-specific wording. General SAE J2012 descriptions are used where available.