Fault-Tracing Information

Fault-tracing

Checking the power supply




- Ignition on.
Check that the Forward Sensing Module (FSM) is powered and grounded by switching on the collision warning function.
The indicator lamp in the button must light and a symbol must light in the Driver information module (DIM).

Note! If the function is correct, this is an indication that the fault was present previously but is not active at the moment, i.e. an intermittent fault.

If the function is not activated, check voltage supply and ground terminal for the Forward Sensing Module (FSM).





Was a fault detected?

Yes - Verification

No - Signal missing

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Signal missing

No Fault Found - No Fault Found

DONE - DONE

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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.
- Switch on the ignition for at least 10 seconds.
Try communicating with the control module by selecting one of the functions for vehicle communication under the Diagnostic tab.

Is communication established?

Yes - VERIFIED

No - VERIFICATION FAILED

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VERIFIED - FAULT FOUND

VERIFICATION FAILED - Fault-tracing information

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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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FAULT-TRACING FAILED - No Fault Found

Attempt New Test - Checking the power supply

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