Rear defroster switch

Tiny
ANGIEMERES@GMAIL.COM
  • MEMBER
  • 1997 JEEP CHEROKEE
  • 124,000 MILES
Rear defroster switch on but not working. Problem is that turning it on made the dash lights go out. Still working odometer light. Still working headlights and inside overhead light. Light on switch still on. Tried for dash lights with vehicle running and not running.
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Wednesday, December 27th, 2017 AT 6:48 AM

5 Replies

Tiny
KEN
  • ADMIN
Hello,

Check fuse #3 which is a 40 amp this supplies power to the systems.

Here is a guide to help you:

https://www.2carpros.com/articles/how-to-check-a-car-fuse

Here is a wiring diagram so you can see how the system works and the fuse panel and relay diagrams as well:

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

Check out the diagrams (below).

Please let us know what you find. We are interested to see what it is.

Cheers, Ken
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Thursday, December 28th, 2017 AT 1:29 PM
Tiny
ANGIEMERES@GMAIL.COM
  • MEMBER
Thank you for going the extra mile with diagrams. Unfortunately, were are not able to find a fuse marked #3 nor any fuse that seems to be related to the defroster.

Thank you for your time.
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Friday, December 29th, 2017 AT 12:42 PM
Tiny
KEN
  • ADMIN
Can you take a picture of your fuse box so we can see which configuration we are dealing with. Please use your phone and upload here to the site so we can see what's going on.

Cheers, Ken
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Sunday, December 31st, 2017 AT 11:34 AM
Tiny
ANGIEMERES@GMAIL.COM
  • MEMBER
Wanted to let u know we gve up trying to figure out the fuses and took to the shop. $45 to replace fuse. He said he used a testerto find fuse as Jeep is not very user friendly on fuse diagram. Thank you for your time.
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Wednesday, January 10th, 2018 AT 10:28 PM
Tiny
KEN
  • ADMIN
Glad you could get it fixed, that kind of problem can be tough. Please use 2CarPros anytime we are here to help

Cheers, Ken
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Thursday, January 11th, 2018 AT 12:08 PM

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