Faulty Signal. Permanent Fault

Faulty signal. Permanent fault

Checking the connector and cable








- Ignition off.
- Disconnect the seat belt buckle connector.
- Check the seat belt buckle connector visually for contact resistance and oxidation Checking wiring and terminals. Permanent fault Checking Wiring and Terminals. Permanent Fault.
- Ignition on.

Hint: Use a small test probe to take a reading on the terminal in the connector when checking voltage.

Check that there is supply voltage at connector #1.
Remedy as necessary.

Other information
- To access / replace the seat belt buckle, see Seat belt Service and Repair.









Continue - Checking connector and cable, continued

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Checking connector and cable, continued








- Ignition off.
- Reinstall the seat belt buckle connector.
- Check the seat belt buckle connector #2 for a short-circuit to ground according to Checking wiring and terminals. Permanent fault Checking Wiring and Terminals. Permanent Fault.
- Disconnect the control module connector.
- Ignition on.
Check cable between seat belt buckle connector #2 and control module connector #12 for an open-circuit and a short-circuit to ground.
Remedy as necessary.

Other information
Caution! It is grounded at the sensor casing.

To access / replace control module connector, see SRS control module Service and Repair.













Continue - Checking component

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Checking component




- Ignition off.
Check both seat belt buckle #1 and #2 for a short-circuit to ground according to Checking wiring and terminals. Permanent fault Checking Wiring and Terminals. Permanent Fault.
If no faults were detected, try a new seat belt buckle.
Remedy as necessary.

Other information
- To access / replace the seat belt buckle, see Seat belt Service and Repair.













Continue - Verification

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Verification




Verification

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




- Ignition off
- Disconnect the battery negative lead
- Reinstall the connectors, components etc.
- Ignition on
- Connect the battery negative lead.

Warning! There must not be anyone inside the passenger compartment when the battery is connected.

- Read off diagnostic trouble codes (DTCs).
The fault is no longer present if the status of the diagnostic trouble code (DTC) has changed to intermittent.





Does the status change?

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 - Exit fault-tracing

No - Attempt New Test

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Attempt New Test - Checking the connector and cable

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