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Burnt terminals behind switch

Tiny
FERNY 23
  • MEMBER
  • 1988 FORD F-350
  • 7.5L
  • V8
  • 4WD
  • AUTOMATIC
  • 155,000 MILES
My running lights work but I can't seem to get any power to my headlight. I replaced the headlight switch and noticed I had a burnt terminal on the back of the switch. How do I fix it?
Sunday, February 6th, 2022 AT 7:44 PM

3 Replies

Tiny
ASEMASTER6371
  • MECHANIC
  • 52,797 POSTS
Good morning,

That happens from either a bad connection or high current flow. The switch will have to be replaced along with the wire end in the connector to resolve this.

https://www.2carpros.com/articles/how-a-headlight-switch-works

You can go to a part store and see if they have a connector for the switch as well as the switch.

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

Roy
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Monday, February 7th, 2022 AT 2:23 AM
Tiny
FERNY 23
  • MEMBER
  • 2 POSTS
Before I replaced the switch none of my lights were working, now that I replaced the switch the running lights work but there a burnt-out connection on the back of the wiring harness that I believe has to be the head lights. What do I need to do to fix the connection if it's burnt out?
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Monday, February 7th, 2022 AT 7:51 AM
Tiny
ASEMASTER6371
  • MECHANIC
  • 52,797 POSTS
The end of the wire or the wire itself will need to be replaced.

Did you check for power coming out of the switch?

Roy
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Monday, February 7th, 2022 AT 2:17 PM

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