GMC fault codes
Coverage shown is GM data: 17,703 codes · 2,212 vehicle records · 180 ECU records · 10,756 live-data parameters.
GMC shares fault-code data with GM. Data may not cover GMC-specific systems.
Codes 17,703
| Code | Description | Brands | System |
|---|---|---|---|
| P1EF1 | PTC-varmerelé (1) krets lav | 9 | Powertrain |
| P1EF2 | PTC-varmerelé (1) sveising | 9 | Powertrain |
| P1EF3 | Battery charger high voltage converter 1 high temperature | 10 | Powertrain |
| P1EF4 | PTC-varmerelé (2) krets lav | 10 | Powertrain |
| P1EF5 | Battery charger input voltage conditioner high temperature | 11 | Powertrain |
| P1EF6 | Battery charger control module ignition on/start switch circuit low voltage | 10 | Powertrain |
| P1EF7 | Battery charger control module ignition on/start switch circuit high voltage | 10 | Powertrain |
| P1EF8 | Battery charger control module high voltage energy management communication bus enable circuit low voltage | 10 | Powertrain |
| P1EF9 | Battery charger control module high voltage energy management communication bus enable circuit high voltage | 10 | Powertrain |
| P1EFA | Battery charger high voltage converter 1 input high current | 10 | Powertrain |
| P1EFB | Battery charger high voltage converter 2 input high current | 8 | Powertrain |
| P1EFC | Battery charger control module system voltage low voltage | 9 | Powertrain |
| P1EFD | Latauslaitteen tehokkuus | 8 | Powertrain |
| P1EFE | Akulaadija pöördpolaarsuse kaitseahela toimivus | 7 | Powertrain |
| P1EFF | Laturin tulosyöttöjännitteen suojapiirin toiminta | 7 | Powertrain |
| P1F00 | Charger AC input overvoltage | 13 | Powertrain |
| P1F01 | Battery charger control module supply voltage sensor circuit low voltage | 15 | Powertrain |
| P1F02 | Battery charger control module supply voltage sensor circuit high voltage | 15 | Powertrain |
| P1F03 | Battery charger control module supply voltage performance | 15 | Powertrain |
| P1F04 | Charger Power Factor Correction (PFC) overvoltage | 14 | Powertrain |
| P1F05 | Charger over temperature | 13 | Powertrain |
| P1F06 | Charger ambient temperature low | 13 | Powertrain |
| P1F07 | ETV/CC monitoring communication error | 14 | Powertrain |
| P1F08 | ELC compressor performance | 14 | Powertrain |
| P1F09 | ELC compressor input voltage | 15 | Powertrain |
| P1F0A | A/C compressor motor speed performance | 14 | Powertrain |
| P1F0B | A/C compressor motor start-up current performance | 14 | Powertrain |
| P1F0C | Electric A/C compressor control module A/C compressor motor current feedback circuit low voltage | 14 | Powertrain |
| P1F0D | Electric A/C compressor control module A/C compressor motor current feedback circuit high voltage | 13 | Powertrain |
| P1F0E | Battery charging voltage system isolation lost | 13 | Powertrain |
| P1F14 | Battery charger input current sensor exceeded learning limit | 13 | Powertrain |
| P1F15 | Battery charger 14V output current sensor exceeded learning limit | 12 | Powertrain |
| P1F16 | Electronic lock fault | 12 | Powertrain |
| P1F17 | System Isolation / Impact Sensor Fault - Hybrid/EV Battery System Contactors Open | 12 | Powertrain |
| P1F18 | Auxiliary power supply undervoltage | 11 | Powertrain |
| P1F29 | Cổng sạc nhanh cao | 10 | Powertrain |
| P1F44 | Litar pam penyejuk elektronik hibrid/EV voltan rendah | 9 | Powertrain |
| P1F45 | Litar pam penyejuk elektronik hibrid/EV voltan tinggi | 9 | Powertrain |
| P1F56 | Hybrid/EV-batteripacks kylmedelsventil fastlåst | 9 | Powertrain |
| P1F58 | FC Cell Voltage Monitor Malfunction | 9 | Powertrain |
| P1F59 | Mass Air Flow (MAF) Sensor Circuit Malfunction | 9 | Powertrain |
| P1F5A | 14V strømmodul status terminalkrets lav spenning | 9 | Powertrain |
| P1F5B | 14V strömmodul statusterminalkrets hög spänning | 9 | Powertrain |
| P1F5C | 14V strømodul l-terminalkrets ytelse | 9 | Powertrain |
| P1F5D | 14V strømodul l-terminalkrets lav spenning | 9 | Powertrain |
| P1F5E | 14V modul napajanja L-kolo visokog napona | 9 | Powertrain |
| P1F63 | Hybrid/EV system voltage discharge circuit performance | 10 | Powertrain |
| P1F64 | Hybrid/EV system voltage discharge circuit low voltage | 10 | Powertrain |
| P1F65 | Hybrid/EV-Systemspannung Entladungskreis Hochspannung | 9 | Powertrain |
| P1F66 | Bateri Hibrid/EV litar 97 voltan rendah | 9 | Powertrain |
Some brand data is extracted from diagnostic files and may contain manufacturer-specific wording. General SAE J2012 descriptions are used where available.