Thread: Bulb Indicator
View Single Post
Old 01-14-2003, 11:38 AM
G-Benz's Avatar
G-Benz G-Benz is offline
Razorback Soccer Dad
Join Date: Apr 2001
Location: Dallas/Fort-Worth
Posts: 5,711
Re: turn signal & hit the brakes???

Originally posted by Dave Bunker
What is this "use your turn signal and hit the brake procedure" does that alienate the outage some how.....??
The bulb indicator can only detect a problem on a bulb that is supposed to be "on" for a particular function. Because there are a lot of bulbs that could be the culprit, doing certain lamp functions can narrow down the number of bulbs that could be suspect.

If bulb indicator comes on when switching the headlights on, then you check the side markers and taillight bulbs. If it comes on when you depress the brake, then you check the brake bulbs (including the third brake light). Same for turn signals.

If it comes on when no lights are on, then you have a grounding problem.
2009 ML350 (106K) - Family vehicle
2001 CLK430 Cabriolet (80K) - Wife's car
2005 BMW 645CI (138K) - My daily driver
2016 Mustang (32K) - Daughter's car
Reply With Quote