Exhaust Temperature Sensor, Bank 1

P043000

Diagnostic information - DME control unit

Exhaust temperature sensor, bank 1

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
- The dynamic response is reduced (torque limitation)

Diagnostic conditions
- Ignition on

Possible fault causes
- Plausibility test (P141F), difference between exhaust temperature after engine and temperature ahead of particulate filter > 30 K (54 R)
- Short circuit to B+
- Short circuit to ground