Buick Repair Questions? Ask a Mechanic for Answers ASAP
Hello, my name is ***** ***** I'm here to help get your problem solved.
Is problem only with low beams? Have you replaced headlamp driver module?
So neither hi or low beams work? Do hi beams work when you use the flash to pass option? Thanks.
The headlamp driver module is only for low beams. If hi beams aren't working, have you tried to replace the hi beam relay in location 34 of fuse box?
Unplug the body control module and ground the black/white wire at pin 7 of connector 1. Let me know if that turns on hi beams. Thanks.
Here is a picture.