Headlights and turn signals intermittently not working

2008 JEEP PATRIOT
149,000 MILES • 2.4L • 4 CYL • 2WD • AUTOMATIC
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SHAUN NOEL
  • MEMBER
  • 2 POSTS
So occasionally I’ve been noticing that my headlights will not turn on and my turn signals won’t work for a while, but after a while will start working again. I’ve changed the turn signal switch and it is still having the same issue.
Sep 19, 2020 at 5:17 PM
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KASEKENNY
  • ✓ASE Certified Mechanic
  • 18,907 POSTS
  • ASE Certified Mechanic
Assuming you don't have a loose connection the most likely cause of this is a totally integrated power module (TIPM). The TIPM controls the lighting circuits so again, assuming the wiring is not the issue this would be it. The only way to confirm the wiring is not the issue is to get this to act up by wiggling the wiring harnesses going to the lights or when it acts up, you are able to move the wiring and it stops.

Based on the fact that this is not consistent, if it were me, I would replace the TIPM and if it doesn't act up again, then that was it.
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Sep 19, 2020 at 6:39 PM
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SHAUN NOEL
  • MEMBER
  • 2 POSTS
Alright, I will definitely give that a try. thank you!
Sep 19, 2020 at 10:05 PM
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KASEKENNY
  • ✓ASE Certified Mechanic
  • 18,907 POSTS
  • ASE Certified Mechanic
Sounds good. Let us know how it turns out. Thanks for the update.
Sep 20, 2020 at 6:38 PM
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