Dome override, headlights and DRL's not working properly

Tiny
NICK SMITH2
  • MEMBER
  • 2001 CHEVROLET TAHOE
  • 5.3L
  • V8
  • 2WD
  • AUTOMATIC
  • 150,000 MILES
Headlights are on all the time, DLR's don't work. Relays and fuses are all good.
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Sunday, October 20th, 2019 AT 7:13 AM

3 Replies

Tiny
SCGRANTURISMO
  • EXPERT
Hello,

Is your vehicle's Malfunction Indicator Lamp [MIL] or "check engine" lamp illuminated? If so can you please pull the Direct Trouble Code [DTC][s] for us. If you are unfamiliar with how to do this, then here is a link to a guide explaining how to do this below:

https://www.2carpros.com/articles/checking-a-service-engine-soon-or-check-engine-light-on-or-flashing

Having said that, this could be a problem with your vehicle's Body Control Module [BCM]. I have included a wiring diagram of your vehicle's headlight circuit in the diagrams down below for you for reference. I have also included the factory instructions for the removal and installation of your vehicle's BCM in the diagrams down below, as well. Please go through these guides and get back to us with what you are able to find out.

Thanks, P.S. Go Blue
Alex
2CarPros
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Sunday, October 20th, 2019 AT 7:43 AM
Tiny
NICK SMITH2
  • MEMBER
Got several. Will only quote the relevant ones CO 281, CO 265, 242,252,245,241,251,246.
Thanks
Nick,

PS: OH.
Good luck against the Irish!
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Wednesday, October 23rd, 2019 AT 6:47 AM
Tiny
SCGRANTURISMO
  • EXPERT
Hello,

All of the DTCs are dealing with malfunctions in your vehicle's ABS system. In the diagrams down below I have included diagnostic troubleshooting guides for all the DTCs listed above. Please go through them and get back to us with what you are able to find out.

Thanks,
Alex
2CarPros
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Wednesday, October 23rd, 2019 AT 8:14 AM

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