2003 Chevy Impala 2003 Chevy Impala Light problems

2003 CHEVROLET IMPALA
130,000 MILES • 6 CYL • 2WD • AUTOMATIC
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JAMM05
  • MEMBER
  • 1 POST
low beam light will not work on auto or manually i have replace the headlamp relay and the daytime light relay. low beams r still not working. ok i scan and found nothing in b codes. also i did the most expensive thing and changed the dimmer combination switch to no avail still looking for more help
Jul 22, 2008 at 6:44 PM
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MERLIN2021
  • ✓Experienced Mechanic
  • 17,250 POSTS
You need to have the car scanned for the "B" code that is stored in memory! It will tell you what part is bad. The BCM(body control Module) controls the lights. But there are several parts in the system that are monitored...SCAN!
Jul 22, 2008 at 6:55 PM
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