1996 GMC Yukon high/low beams

WOODYWORLD4158

MEMBER
1996 GMC YUKON
V8
4WD
AUTOMATIC
168,000 MILES

When I select high/low beams I only get low also I get No high beam indicator on the panel and the bulbs are OK, where is the relay or control module located?

Wednesday, June 16th, 2010 AT 12:07 PM

5 Replies

RACEFAN966

MECHANIC
5,029 POSTS

Ok before I can help I need to know a couple of things ok. I first need to know if you have 4 seperate headlight or if you have one headlight on each side with 4 replacement bulbs (composite). Do you have daytime running lights? Thanks and we will go from there.

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Thursday, June 17th, 2010 AT 11:53 AM

WOODYWORLD4158

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3 POSTS

Four separate head lights and have daytime lights

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Thursday, June 17th, 2010 AT 12:00 PM

RACEFAN966

MECHANIC
5,029 POSTS

OK sounds like it may be a bad dimmer switch. Now what I need to know is if you have a digital multi meter? If so we can test before replacing. Get back to me and we will go from there.

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Saturday, June 19th, 2010 AT 9:24 AM

WOODYWORLD4158

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Yes I have a multi meter. Thanks.

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Saturday, June 19th, 2010 AT 9:54 AM

RACEFAN966

MECHANIC
5,029 POSTS

OK the yellow wire to the dimmer switch make sure there is power there first off. Let me know what you find here as this will determine where we go from this point ok.