Faulty Signal. Permanent Fault

Faulty signal. Permanent fault

Checking components and wiring








- Ignition off.
- Disconnect battery negative terminal.
- Disconnect seat connector.
- Check connector for contact resistance and oxidation according to Checking wiring and terminals. Permanent fault Checking Wiring and Terminals. Permanent Fault.
- If the seat connector is defective it must be replaced.
Caution! The special tool must be checked and faultless. If the tool is defective it will cause errors in the diagnosis and make fault-tracing harder.

Install special tool 861 8437 SRS adapter C70 ,S70,V70 861 8437 SRS Adapter on connector.
- Reconnect the battery negative lead.
- Ignition on.
Read off diagnostic trouble codes (DTCs).
If the fault is in the SIPS bag the diagnostic trouble code (DTC) status will have changed to intermittent. In this case the SIPS bag must be replaced.









Is the diagnostic trouble code (DTC) intermittent?

Yes - Verification

No - Checking wiring

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Checking wiring
The fault is in the wiring between the seat connector and the control module. Replace the wiring, do not attempt to repair it.

Other information:
- To access the control module connector, see SRS control module 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 components and wiring

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