Lighting - Headlight Range Control Light ON/DTC's Set
94 08 252015261/2
November 13, 2008.
Supersedes Technical Service Bulletin Group 94 number 07-11 dated July 16, 2007 for reasons listed below.
Affected Vehicles
94 Headlight range control warning light on
Condition
In vehicles with automatic self-leveling headlights, the warning lamp in the instrument cluster is on. The headlights function properly.
Technical Background
One of the following DTCs are stored in the fault memory of the headlight range control module, address word 55:
- DTC 01535 (Activation for headlight beam adjusting motor right -V49- short circuit to ground), or
- DTC 01535 (Activation for headlight beam adjusting motor right -V49- open / short circuit to B+).
These fault entries are often due to electrical contact problems.
Production Solution
No change.
Service
1. Check the wiring between the headlight range control module -J431- and the range control adjusting motor - V49- internal to the headlight assembly. Perform the wiring check as outlined in TSB 2013504 DTCs, sporadic - contact check.
In cases of poor contact at the A-pillar connector station, the wiring can be spliced according to the wiring diagram, bypassing the connector.
1. Inspect the harness connector contacts at the headlight range control module. Replace if necessary.
Warranty
Required Parts and Tools
Additional Information
The following Technical Service Bulletin should be referenced when completing this procedure:
- 2013504, DTCs, sporadic - contact check
All parts and service references provided in this TSB are subject to change and/or removal. Always check with your Parts Department and service manuals for the latest information.