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P057200 — Brake light signal implausible
Brake light signal implausible. The Taycan, 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 P057200
How to read and clear P057200
- 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 P057200 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
| P050100 | Vehicle speed signal from PSM |
| P050200 | Vehicle speed signal from PSM |
| P051200 | Starter relay 1/2 - electrical fault |
| P056000 | Terminal 30 power supply – signal implausible |
| P056200 | Supply voltage - voltage too low |
| P056800 | Cruise control stalk – signal implausible |
| P057300 | Brake light signal implausible |
| P060100 | Function restriction |
| P060300 | Control unit - function restriction |
| P060600 | Control unit defective |
| P060C00 | Function restriction |
| P061500 | Starter relay, control line - open circuit |
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.