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Is there a way to turn off the Roof Clearance and Marker lights?

Tiny
JEFF THOMPSON4
  • MEMBER
  • 2020 CHEVROLET SILVERADO
  • 6.6L
  • V8
  • 4WD
  • AUTOMATIC
  • 60,000 MILES
Are they controlled through the BCM along with any other lights?

If they are BCM controlled, can I add a relay that can be added to disable these lights, through another added switch?
Tuesday, August 6th, 2024 AT 11:19 PM

10 Replies

Tiny
STEVE W.
  • MECHANIC
  • 13,571 POSTS
Those are all fed from the same circuits as the taillights, plate lamps, and parking lights. The BCM turns on the park lamp relay and all of them come on. The only way I could see to turn off the roof lights would probably be to find the roof harness and add a switch to the violet wire with a gray stripe.
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Wednesday, August 7th, 2024 AT 8:21 AM
Tiny
JEFF THOMPSON4
  • MEMBER
  • 6 POSTS
I will dig for the harness/connectors and see what comes up. I would prefer to connect wherever there may be an existing connection, so that I don't impact warranty.

Thanks for the quick response.
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Wednesday, August 7th, 2024 AT 8:38 AM
Tiny
STEVE W.
  • MECHANIC
  • 13,571 POSTS
There are two connectors in the system after it leaves the front fuse carrier. One is buried in the dash the other is behind the trim on the left A pillar (drivers' side) doesn't say if it's at the top or bottom though. It is a 2-wire connector with a ground (black) and the power (violet/gray) wires in it. You could switch the ground side.
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Thursday, August 8th, 2024 AT 11:00 AM
Tiny
JEFF THOMPSON4
  • MEMBER
  • 6 POSTS
That is all! I appreciate the help from everyone involved! I will take it from here.
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Thursday, August 8th, 2024 AT 11:34 AM
Tiny
STEVE W.
  • MECHANIC
  • 13,571 POSTS
Good luck. Let us know how you make out.
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Thursday, August 8th, 2024 AT 1:08 PM
Tiny
JEFF THOMPSON4
  • MEMBER
  • 6 POSTS
Will definitely provide an update if successful.
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Thursday, August 8th, 2024 AT 1:09 PM
Tiny
JACOBANDNICKOLAS
  • MECHANIC
  • 109,874 POSTS
Hi Jeff,

I noticed it has been a couple of days since we heard from you. Have you had any luck? We are interested in knowing.

Take care,

Joe
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Saturday, August 10th, 2024 AT 7:00 PM
Tiny
JEFF THOMPSON4
  • MEMBER
  • 6 POSTS
Sorry but the truck is located many hours away and I don't have immediate access. I hope it's not a problem to update when I get my hands on the truck.
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Saturday, August 10th, 2024 AT 7:04 PM
Tiny
JACOBANDNICKOLAS
  • MECHANIC
  • 109,874 POSTS
Jeff,

No problem whatsoever. I didn't realize that, and I was just curious. Take your time. We'll be here.

Joe
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Saturday, August 10th, 2024 AT 7:07 PM
Tiny
JEFF THOMPSON4
  • MEMBER
  • 6 POSTS
Okay, great. I was worried I didn't follow one of the rules. Thanks for your patience.
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Saturday, August 10th, 2024 AT 7:14 PM

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