Right turn signal works intermittently

2007 GMC ENVOY
86,000 MILES
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MIKE SUTHERLAND
  • MEMBER
  • 7 POSTS
Sometimes the right turn signal works and sometimes it does not. Replace the turn signal switch and all bulbs on right side. Put on computer to check lighting control module, still no luck fixing this problem. Please can you help me?
May 26, 2018 at 5:32 AM
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STRAILER
  • ✓Experienced Mechanic
  • 55,464 POSTS
Hello,

It sounds like you have a flasher module that is going out but to be sure here is a guide and the wiring diagrams for the blinkers and the blinker module location under the dash test to confirm where you are losing power.

https://www.2carpros.com/articles/how-to-use-a-test-light-circuit-tester

Check out the diagrams (below). Let us know what happens and please upload pictures or videos of the problem.

Cheers, Ken
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May 28, 2018 at 3:35 AM
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MIKE SUTHERLAND
  • MEMBER
  • 7 POSTS
Ken, thanks so much for your advice on this turn signal issue. I am old school mechanic and did not even know of a turn signal module. My day's of a turn signal was a flasher.
Sep 9, 2018 at 3:39 AM
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STRAILER
  • ✓Experienced Mechanic
  • 55,464 POSTS
Yep, me too brother. Did it fix the issue?
Sep 9, 2018 at 5:33 AM
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MIKE SUTHERLAND
  • MEMBER
  • 7 POSTS
Yes it sure did. Thanks buddy.
Sep 9, 2018 at 5:34 AM
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STRAILER
  • ✓Experienced Mechanic
  • 55,464 POSTS
Good to hear, please use 2CarPros anytime we are here to help.

Cheers, Ken
Sep 9, 2018 at 5:35 AM
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