Intermediate power to wipers, blower fan and transmission indicator?

1995 CHEVROLET SILVERADO
271,000 MILES • 5.7L • V8 • 2WD • AUTOMATIC
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QUAILMAN
  • MEMBER
  • 1 POST
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?
Dec 4, 2023 at 5:47 PM
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STRAILER
  • ✓Experienced Mechanic
  • 55,238 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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Dec 5, 2023 at 1:24 AM
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