What does code P1255 mean on Volkswagen vehicles?
The ECU detects a short to ground in the engine coolant temperature (ECT) sensor circuit.
OBD-II Code Volkswagen
P1255 — Volkswagen — Engine Coolant Temperature Sensor Short to Ground
The ECU detects a short to ground in the engine coolant temperature (ECT) sensor circuit.
Common symptoms
- Incorrect air-fuel mixture
- poor cold operation
Possible causes
- Faulty ECT sensor
- wiring short to ground
Initial recommendation
Replace the coolant temperature sensor and inspect wiring.
Safety notice
This information is for guidance only. Brand-specific codes may vary by model, year, engine, transmission and vehicle configuration. It does not replace a physical inspection or diagnosis by a qualified mechanic. If the vehicle is unsafe to operate, avoid driving it and seek professional inspection.
Analyze this code with MecaOBD
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