Faulty Signal

Faulty signal

Checking the connector

Hint: The intake air temperature (IAT) sensor is integrated in the boost pressure sensor.

- Check the boost pressure sensor connector and terminals. Check for contact resistance and oxidation.
If the diagnostic trouble code (DTC) for this fault returns after erasing diagnostic trouble codes (DTCs) and test driving, trying using a new boost pressure sensor.
Remedy as necessary.

Other information
- Temperature and manifold absolute pressure sensor (MAPT), B5254T7 Service and Repair
- Checking wiring and terminals Checking Wiring And Terminals.





Select Continue.

Continue - Verification

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Verification




Verification

Hint: After carrying out the repair, check that the fault has been remedied.








- Ignition off
- Reconnect the connectors, reinstall components etc.
- Ignition on.
Read off the intake air temperature (IAT).





Is the temperature within its permitted range?

Yes - VERIFIED

No - VERIFICATION FAILED

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VERIFICATION FAILED - Fault-tracing information

VERIFIED - FAULT FOUND

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Fault-tracing information

FAULT-TRACING FAILED - FAULT-TRACING FAILED

Attempt New Test - Checking the connector

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