Fog lights will not work

ROYCAR71

MEMBER
1998 GMC JIMMY
4.3L
V6
2WD
154,400 MILES

I Changed the fog light switch, I checked the fuse and relay under the hood, and check voltage in the wiring. All checked fine. Is there another fuse or relay that relates to the fog light to be checked? Thank you.

Saturday, July 18th, 2015 AT 9:32 PM

7 Replies

HMAC300

MECHANIC
48,601 POSTS

Check the DRL relay then have it scanned for codes may be a body module problem

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Sunday, July 19th, 2015 AT 4:25 PM

ROYCAR71

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354 POSTS

Scanned for codes and checked relays. No codes, DRL relay works after swapping with go relay. How do I go about to check body control module for fault? Thanks.

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Friday, November 13th, 2015 AT 10:49 PM

HMAC300

MECHANIC
48,601 POSTS

My reply said to have it scanned a pro has to do it with a pro scanner auto parts can't

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Saturday, November 14th, 2015 AT 6:48 AM

ROYCAR71

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354 POSTS

Before I go to get it scanned. Would I also have something else that was acting up since this function may be related to other functions?

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Saturday, November 14th, 2015 AT 5:59 PM

HMAC300

MECHANIC
48,601 POSTS

If the relay works and fog lights don't I assume they aren't getting power which comes from truck control module. It's either that or a fuse box problem like losing contact at relay or something broken in fuse box. You can try tweeking prongs on relay and using dielectric compound on them see if that works.