P3801

P3081

Engine Temperature Sensor - Signal Implausible

Diagnostic conditions
- Engine running

Possible cause of fault
- Air in cooling system
- Use of a block heater
- Engine temperature sensor faulty
- If an original stationary heater is used: faulty 3/2-way valve

Affected terminals
DME control module, pin 93, and engine temperature sensor, pin 1
DME control module, pin 108, and engine temperature sensor, pin 2

Diagnosis/troubleshooting