my tail lights come on without headlight switch on a 99 blazer
Tail lights & headlights? If so, the ambient light sensor in the dash (passenger side speaker grill) may be covered or faulty. Even with the ambient light sensor telling the BCM that it is dark out, you should be able to turn the headlights off by putting the headlight switch in the park-lamps mode.
Thread
Thread Starter
Forum
Replies
Last Post
jtbwatson
Lighting & Electrical
3
Apr 4, 2013 12:47 PM
ff162bfd
Full Size K5 (1969-1991) GMT415 (1992-1994) Tech
4
Oct 26, 2009 11:23 AM






