12C400

The difference between the measured temperature and the calculated temperature of component B19/9 (Temperature sensor upstream of diesel particulate filter) is too great.


Possible cause:

- B19/9 (Temperature sensor upstream of diesel particulate filter)
Affected functions:

- Power generation

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Test 1: Check component B19/9 (Temperature sensor upstream of diesel particulate filter).

1. Check component B19/9 (Temperature sensor upstream of diesel particulate filter).
Plausibility check of component 'B19/9 (Temperature sensor upstream of diesel particulate filter)'
Test sequence :In the following test, the engine speed is raised to check the temperature sensor.Specified value

- The temperature difference between component B19 (Catalytic converter temperature sensor) and B19/9 (Temperature sensor upstream of diesel particulate filter) must not be larger than 60° C.
Start engine.Continue with button F2

Warning!Communication with ECU required.