Dome light does not come on?

Tiny
TERRY VANDEHEI
  • MEMBER
  • 2002 CHEVROLET BLAZER
  • 6 CYL
  • 4WD
  • AUTOMATIC
  • 105,000 MILES
When I open any of the doors the dome light does not come on; but I can turn it on with the dimmer switch. I've looked for a bad fuse but did not find one. Is there a switch somewhere that controls this function?
Saturday, February 2nd, 2008 AT 7:55 AM

1 Reply

Tiny
KASEKENNY
  • MECHANIC
  • 18,907 POSTS
More than likely we have a control issue. The dome light should come on when a door switch is open so if it doesn't respond to any door opening then it is unlikely that all the door switches are fault.

Also, if you can turn it on with the switch then the fuse and bulb are fine. So we need to check for power coming from the switch to the BCM. If the BCM is getting the signal from the door switch then I would put a BCM in the vehicle.

https://www.2carpros.com/articles/how-to-check-wiring

I attached the wiring diagram below that we need to follow so please let us know what you find with this.

Thanks
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Tuesday, June 8th, 2021 AT 8:31 AM

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