15F700

The value of component B19/11 (Temperature sensor upstream of turbocharger) is implausible. Temperature change too fast


Possible cause:

- B19/11 (Temperature sensor upstream of turbocharger)
Affected functions:

- Power generation

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Test 1: Check component B19/11 (Temperature sensor upstream of turbocharger).

1. Check component B19/11 (Temperature sensor upstream of turbocharger).
Test prerequisite

- Run engine at idle speed for approx. 5 min.
Status of the relevant actual values:
- B19/11 (Temperature sensor upstream of turbocharger):Warning! Communication with ECU required.

- B19 (TWC temperature sensor):Warning! Communication with ECU required.
Specified value

- The temperature of component B19/11 (Temperature sensor upstream of turbocharger) may be max. 200° C higher than that of component B19 (TWC temperature sensor).
Question

- Is the actual value o.k.?


YES
The actual value is okay.Further procedure

- In the event of stored faults with a high fault frequency count or in the event of customer complaints, check lines and connectors for loose contact and corrosion..
End of test

NO
The actual value of component B19/11 (Temperature sensor upstream of turbocharger) is not OK.Possible cause and remedy

- Replace component B19/11 (Temperature sensor upstream of turbocharger).
End of test