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No running lights and dash light not working?

Tiny
TODD BUCKINGHAM
  • MEMBER
  • 1989 BUICK LESABRE
  • 3.8L
  • 6 CYL
  • 2WD
  • AUTOMATIC
  • 115,000 MILES
All blinkers work. Brake lights work. Headlights work. No running lights. I’ve changed the fuse. And still nothing, not sure what else to do. I’ve seen a possible ground being corroded but don’t want to buy a new switch if that’s the case. Thank you in advance.
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Thursday, August 17th, 2023 AT 2:42 PM

1 Reply

Tiny
KEN L
  • MASTER CERTIFIED MECHANIC
  • 47,602 POSTS
I would check for power with the headlight switch on at the brown wire, if you have power at the fuse but no power at the brown wire the switch is bad. Here are the running light wiring diagrams and two guides to help us fix the problem.

https://www.2carpros.com/articles/how-to-use-a-test-light-circuit-tester

and

https://www.2carpros.com/articles/no-tail-lights-exterior-running-lights-tail-lights-out

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Friday, August 18th, 2023 AT 10:42 AM

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