Complaint A

Complaint A:
Sporadically, one key fails to operate the starter.

Cause A:
The following causes are possible:





^ The coil ends (1) of the ring antenna could be short-circuited to the conductive rubber ring (2) located near the connector.

^ The Send/Receive Module (S/E Module) could be disturbing data communication between the transponder in the key and the EWS II Control Module, due to component tolerances.

^ The transponder in the key could be defective.

Correction A:

1. Conduct EWS II Diagnosis using the DIS Tester.





2. If the fault message "Key codeword faulty" and/or "Key code number faulty" is displayed, and the vehicle was produced prior to December 1995, carefully remove the ring antenna clipped onto the ignition lock, replace the rubber ring (2) (P/N 32 32 1 094 182) on the ignition lock, and reinstall the ignition lock. Also replace the Send/Receive (S/E) Module if the vehicle was produced prior to December 1995.

Note:
The non-conductive rubber ring has been installed in series production since mid-November 1995.

The old rubber rings (P/N 32 311 092 850) must not be used. Inventory in the Parts Distribution Centers has been cleared of the older part number.

3. Check again whether the key in question functions; if not, replace the key.

4. Disable (block) the key determined to be defective using DIS "Service Functions".

Note when testing keys:

Always wait for at least 10 seconds before testing the next key, because the code data of the key previously tested are otherwise not overwritten.