Faulty Signal

Faulty signal

Checking the connectors and cables








- Ignition off
- Check the connector between the differential electronic module (DEM) and the temperature sensor. Check for contact resistance and oxidation.

Hint: Read off the temperature sensor signal to check the function.

Remedy as necessary.

Other information:
- Signal specification, differential electronic module (DEM) Pinout Values and Diagnostic Parameters
- Temperature and pressure sensor, four-wheel drive clutch Service and Repair
- Active On-Demand Coupling Module Service and Repair
- Checking wiring and terminals Checking Wiring And Terminals









Continue - Verification

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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 temperature.
Check that the value is within its permitted range. Compare it to the ambient temperature.





Is the temperature reading OK?

Yes - VERIFIED

No - VERIFICATION FAILED

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VERIFIED - FAULT FOUND

VERIFICATION FAILED - Fault-tracing information

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Fault-tracing information

FAULT-TRACING FAILED - FAULT-TRACING FAILED

Attempt New Test - Checking the connectors and cables

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