fuses, interior lights and four wheel drive lights quit working

1999 FORD F-250
15,000 MILES • 5.7L • V8 • 4WD
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BOBBY PILGRIM
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  • 1 POST
interior lights and four wheel drive lights quit working.
Feb 21, 2017 at 6:22 PM
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STRAILER
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  • 53,854 POSTS
Hey Bobby,

It looks like there is a interior light relay that could be bad, here are some wiring diagrams so you can do some testing to get the problem fixed.

Relay test guide

https://www.2carpros.com/articles/how-to-check-an-electrical-relay-and-wiring-control-circuit

Please let us know what you find so it will help others.

Best, Ken
Feb 24, 2017 at 11:32 AM