Exhaust Gas Temperature Sensor

P042000

Diagnostic information - DME control unit

Exhaust gas temperature sensor

The control unit must be active in order to test internal function sequences and diagnosable inputs/outputs.
In the event of a fault, check whether the fault is permanently >present<. To perform the check, erase the fault memory, meet the diagnostic conditions and read out the fault memory again.

NOTE:
- Sensor voltage not OK

Diagnostic conditions
- Ignition on

Possible fault causes
- Short circuit to ground
- Signal implausible
- Electrical fault