Checking Component

Checking Component







- Make a note of the anti-theft radio code.
- Ignition off.
- Disconnect the battery negative lead.
- Disconnect the connector from the seat belt tensioner.


WARNING
Under no circumstances use an ohmmeter or other live measuring instrument to take readings on a disconnected non-deployed pyrotechnical seat belt tensioner. This could deploy the seat belt tensioner!


- Install special tool 998 8695 on the seat belt tensioner connector.


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.


- Ignition on.
- Connect the battery negative lead.
- Read off diagnostic trouble codes (DTCs).

If the fault is in the seat belt tensioner the diagnostic trouble code (DTC) status should now have switched to intermittent fault. Try replacing the seat belt tensioner and carrying out a new verification afterwards.

Does the diagnostic trouble code (DTC) status change?

Yes - Verification

No - Checking Components and Wiring