Porsche fault codes
2,794 codes · 25 vehicle records · 190 ECU records · 0 live-data parameters
Codes 2,794
| Code | Description | Brands | System |
|---|---|---|---|
| P1786 | Mode switch input malfunction | 22 | Powertrain |
| P1787 | Druckregler G Kurzschluss nach Masse oder Unterbrechung | 24 | Powertrain |
| P1788 | Pressure control solenoid B open circuit | 22 | Powertrain |
| P1789 | Pressure control solenoid B short circuit | 24 | Powertrain |
| P178A | Transmission range selector shaft position sensor performance | 12 | Powertrain |
| P178B | Hydraulic pump implausible response | 10 | Powertrain |
| P178C | Druckregler D Kurzschluss nach Plus oder Unterbrechung | 9 | Powertrain |
| P178D | Backup parking lock actuator performance | 10 | Powertrain |
| P178E | Druckregler F Kurzschluss nach Plus oder Unterbrechung | 8 | Powertrain |
| P178F | Druckregler G Kurzschluss nach Plus oder Unterbrechung | 8 | Powertrain |
| P1790 | Fault immediately after shift | 30 | Powertrain |
| P1791 | implausible signal or value | 25 | Powertrain |
| P1792 | CAN bus - engine coolant | 23 | Powertrain |
| P1793 | Wheel speed signal malfunction | 26 | Powertrain |
| P1794 | Incorrect operation of selector lever | 19 | Powertrain |
| P1795 | implausible signal or value | 23 | Powertrain |
| P1796 | Kickdown switch circuit malfunction | 18 | Powertrain |
| P1797 | SMG: Safety concept, level 2, RAM | 19 | Powertrain |
| P1798 | Output speed sensor 2 circuit Range/performance | 20 | Powertrain |
| P1799 | Multifunction switch (CMF) signal failure | 23 | Powertrain |
| P179A | Magnetventil B Kurzschluss nach Plus oder Unterbrechung | 13 | Powertrain |
| P179B | CAN ECM/Turbocharger Boost Control A Actuator - Invalid Data Received | 10 | Powertrain |
| P179C | Transmission clutch 1 minor slip detected | 12 | Powertrain |
| P179D | Transmission clutch 2 minor slip detected | 10 | Powertrain |
| P179E | Transmission clutch 3 minor slip detected | 10 | Powertrain |
| P179F | Transmission clutch 4 minor slip detected | 9 | Powertrain |
| P17A0 | Key lock control circuit failure | 11 | Powertrain |
| P17A1 | Key lock control circuit failure | 11 | Powertrain |
| P17A2 | Transmission hydraulic failure or mechanical failure | 11 | Powertrain |
| P17A3 | Automatic transmission (gear R) | 11 | Powertrain |
| P17A4 | 4th gear incorrect ratio | 10 | Powertrain |
| P17A5 | Mechanical or hydraulic transmission first gear failure during engine braking | 10 | Powertrain |
| P17A6 | Shift lever failure | 10 | Powertrain |
| P17A7 | Pressure regulator 7 (HIS), shunt | 9 | Powertrain |
| P17A8 | Pressure regulator H control current too low | 10 | Powertrain |
| P17A9 | In D mode, the driving force is reduced | 11 | Powertrain |
| P17AA | In D mode, the drive reduction motor fails. | 11 | Powertrain |
| P17AB | Transmission range control module not programmed | 10 | Powertrain |
| P17AC | Transmission range control module long term memory reset | 10 | Powertrain |
| P17AD | Gear selector valve 2 short to earth | 9 | Powertrain |
| P17AE | Gear selector valve 2 short to positive | 9 | Powertrain |
| P17AF | Gear selector valve 2 electrical fault | 9 | Powertrain |
| P17B0 | Gear selector valve 3 open circuit | 10 | Powertrain |
| P17B1 | Gear selector valve 3 short to earth | 10 | Powertrain |
| P17B2 | Gear selector valve 3 short to positive | 10 | Powertrain |
| P17B3 | Gear selector valve 3 electrical fault | 10 | Powertrain |
| P17B4 | Gear selector valve 4 open circuit | 11 | Powertrain |
| P17B5 | Gear selector valve 4 short to earth | 11 | Powertrain |
| P17B6 | Gear selector valve 4 short to positive | 9 | Powertrain |
| P17B7 | Gear selector valve 4 electrical fault | 10 | Powertrain |
Some brand data is extracted from diagnostic files and may contain manufacturer-specific wording. General SAE J2012 descriptions are used where available.