Lighting - Left/Right Xenon Headlamp Failure/DTC's Set

94 08 44

2012829/2

November 14, 2008.

Supersedes Technical Service Bulletin Group 94 number 06-06 dated September 18, 2006 for reasons listed below.





Affected Vehicles

94 Xenon headlight does not work.

Condition





One Xenon light fails completely on left or right side.

Fault codes found in the central electronics control unit, address word 09, are;

- 00978 left low beam headlight - M29.

- 00979 right low beam headlight - M31.

The fault may be sporadic or static.

Technical Background

The electrical connector for the headlight bulb loses contact or becomes completely disconnected.

Production Solution

Improvements to the Xenon headlight bulb electrical connector.

Service

Check whether the electrical connector is correctly attached to the Xenon headlight bulb. Removal of the headlight assembly and rear cover is required. If it is loose or not connected, bend both the left and right spring tabs open inside the electrical connector to create a firm fit. Use a 2 mm welding wire to perform the task (see illustrations below).





2 mm wire bent at a right angle, with flattened head.





Length of the flattened head should be approximately 11 mm.





Bend the spring tabs open on both sides

Reinstall the bulb electrical connector, rear cover, headlight electrical connector, and headlight assembly. Erase the fault code(s) and test headlight function.





Warranty

All part and service references provided in this TSB are subject to change and/or removal. Always check with your Parts Dept. and service manuals for the latest information.