Operation CHARM: Car repair manuals for everyone.

Faulty Signal






Faulty signal

Checking the connector

Hint: The intake air temperature (IAT) sensor is integrated in the mass air flow (MAF) sensor.

Check the intake air temperature (IAT) sensor connector and terminals. Check for contact resistance. Check for oxidation.
Remedy as necessary.

Other information
- Checking wiring and terminals Checking Wiring And Terminals










Continue - Verification

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Verification




Verification

Verification

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








- Ignition off
- Reinstall the connectors, components etc.
- Ignition on.
Read off the signal from the manifold absolute pressure (MAP) sensor.
Check that the signal is within its permitted range.









Is the signal 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




Information

Fault-tracing information
The fault should have been detected and remedied. As this is not the case fault-tracing has failed.
Exit fault-tracing for this diagnostic trouble code (DTC) or make another attempt.

Do you want to exit fault-tracing?

Yes - FAULT-TRACING FAILED

No - Attempt New Test

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FAULT-TRACING FAILED - FAULT-TRACING FAILED

Attempt New Test - Checking the connector

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