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P17F400 — Solenoid (parking lock), activation of engine electronics (DME) – electrical fault
Solenoid (parking lock), activation of engine electronics (DME) – electrical fault. The Taycan, 911 (992), Panamera (971), Panamera (972) and Cayenne report this code; below is which control unit sets it on each model and how to read and clear it.
Which models and control units set P17F400
How to read and clear P17F400
- Plug a standard ENET (Ethernet-to-OBD) cable into your Porsche's OBD port and your Mac or Windows PC.
- Open STEUER14, pick your car and run a fault scan: every control unit is read, and P17F400 shows with its status, its full description and the freeze frame when the unit stores one.
- Fix the cause first, then clear the fault memory and scan again to check it stays away. Reading and clearing fault codes is free on every control unit.
More about fault memory in the manual →
Download STEUER14 — free fault readingOther codes of the Engine Control Module 1
| P176400 | Transmission oil temperature too high (warning level: see F1 help) |
| P176E00 | Position sensor for dog clutch – actual position implausible, with clutch disengaged |
| P176F00 | Position sensor for dog clutch - actual position implausible, with clutch engaged |
| P179800 | Speed sensor, transmission (output) – signal implausible |
| P17CF00 | Multi-plate clutch, 2nd gear – excessive slip |
| P17F300 | Solenoid (parking lock), activation of engine electronics (DME) – electrical fault |
| P17F500 | Solenoid (parking lock), activation of engine electronics (DME) – electrical fault |
| P187F00 | Servo motor (clutches) – position deviation |
| P188E00 | Servomotor (clutches) – overtemperature (for warning level see F1 help) |
| P189800 | Multi-plate clutch, 2nd gear – function restriction |
| P189900 | Dog clutch/freewheeling, slip correction failed |
| P198700 | Function restriction due to brake temperature |
All 274 codes of this control unit →
Fault names come from the manufacturer's diagnostic data. STEUER14 is independent and not affiliated with Porsche AG. A code tells you what a control unit detected, not always which part failed — check wiring, supply voltage and related codes before replacing parts. STEUER14 shows each fault's full description, status and freeze frame on the car.