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P172500 — Comparison of transmission output speeds – signal implausible
Comparison of transmission output speeds – signal implausible. The Taycan 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 P172500
How to read and clear P172500
- 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 P172500 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
| P168200 | Engine electronics (DME) control unit – implausible message from PSM |
| P169A00 | Transport mode active |
| P16FB00 | Vibration module for accelerator pedal - short circuit to B+ |
| P16FC00 | Vibration module for accelerator pedal - short circuit to ground |
| P16FD00 | Vibration module for gas pedal, Open circuit |
| P170100 | Servo motor (clutches) – immobilizer |
| P172F00 | Lower position sensor (dog clutch) – electrical fault |
| P173000 | Upper position sensor (multi-plate clutch) – electrical fault |
| P173A00 | Lower position sensor (dog clutch), signal implausible |
| P173B00 | Upper position sensor (multi-plate clutch) – signal implausible |
| P174000 | Clutch temperature too high during adaptation |
| P174200 | Multi-plate clutch, 2nd gear – adaptation required |
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.