Fault-Tracing Information

Fault tracing

Checking the status




- Start the engine.
Check whether the fault is permanent or intermittent by reading the signal of the air temperature sensor. Check that the value is feasible.
If the value is not feasible, the fault is permanent. If the value is feasible, the fault is intermittent and not currently active.





Continue - Checking components and wiring

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Checking components and wiring




- Ignition off
Check the mass air flow sensor connections for contact resistance and oxidation.
Read the air temperature by clicking the VCT2000 symbol.
Remedy as necessary.

Other information
- Connecting the breakout box, B6304T4 Connecting The Breakout Box, Engine Control Module (ECM)
- Mass air flow (MAF) sensor, B6304T4 Service and Repair
- Checking wiring and terminals Checking Wiring And Terminals













Continue - Verification

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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 - Exit fault-tracing

No - Attempt New Test

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Attempt New Test - Checking components and wiring

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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 intake air temperature sensor's signal by clicking on the symbol for VCT2000.
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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