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Intermediate power to wipers, blower fan and transmission indicator?

Tiny
QUAILMAN
  • MEMBER
  • 1995 CHEVROLET SILVERADO
  • 5.7L
  • V8
  • 2WD
  • AUTOMATIC
  • 271,000 MILES
My truck listed above has intermediate power controlling the wipers heater fan and transmission indicator. It acts like a lose wire. Comes on, goes off, over the entire trip. Can anyone describe a wire that would feed all these instruments?
Tuesday, December 5th, 2023 AT 1:47 AM

1 Reply

Tiny
KEN L
  • MASTER CERTIFIED MECHANIC
  • 48,363 POSTS
It sounds like the ignition switch is going out but to be sure we can use a test light to confirm the issue. When these accessories are not working you need to test the output wires from the switch. here is a guide and the ignition switch wiring diagrams so you can see which wires to test:

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

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Tuesday, December 5th, 2023 AT 9:24 AM

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