2002 Buick Regal Odometer dimmed 2002 Buick

Tiny
KEITHSYR
  • MEMBER
  • 2002 BUICK REGAL
  • 6 CYL
  • 2WD
  • AUTOMATIC
  • 175,000 MILES
This question is like others that have been asked. I have lost consistent internal lights (reading lights on mirror, dome lights, etc.) But the last that really troubles me is I returned from a 10 day vacation to find the odometer is so dimmed as to be unreadable most of the time. I used the trip odometer yesterday and it works fine, I just can't hardly see it.

I have read on your page that the ignition or turn signal can affect other electrical functions. Any ideas?

Mike Cerjak has written me about my question. I had not joined when I sent in a donation thinking it was necessary for an answer. Thanks.
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Saturday, June 27th, 2009 AT 3:02 PM

4 Replies

Tiny
2CARPRO JACK
  • MECHANIC
  • 11,533 POSTS
The lighting is controlled by the BCM (Body Control Module ) as well as the switches that manually control them. Those cars have battery run down protection that will shut down the interior after a designated amount of time, but it wont control brightness of the lights except when the headlights are turned on, then it dims them to keep glare down. If the dash odo lights are dim, it may be the dimmer control, or possibly the BCM, are all of the dash lights doing this? If so it may be the controller, if no the cluster may have its own issue internally.A scan of the BCM for codes would be a good place to start, to see if there are any codes stored
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Monday, June 29th, 2009 AT 12:33 PM
Tiny
KEITHSYR
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Jack,

Just one more. Can you tell me how to go about getting a BCM scan? Thanks
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Thursday, July 2nd, 2009 AT 9:39 AM
Tiny
2CARPRO JACK
  • MECHANIC
  • 11,533 POSTS
You may have to go to the dealer, unless you can find a shop with a scanner capable of this. Not all will do the BCM, so I suggest calling around
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Friday, July 3rd, 2009 AT 8:28 AM
Tiny
KEITHSYR
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Jack, thanks for your help!
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Saturday, July 4th, 2009 AT 10:00 AM

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