Front left signal is not working

Tiny
TLEIGHCOX
  • MEMBER
  • 2018 CHEVROLET EQUINOX
  • 1.5L
  • 4WD
  • AUTOMATIC
  • 38,000 MILES
Changed the bulb to no effect. No power when checking at the bulb. No codes with reader. Help!
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Monday, June 29th, 2020 AT 6:02 PM

3 Replies

Tiny
JACOBANDNICKOLAS
  • EXPERT
Hi,

Just to confirm, when you say left, are you referring to the driver's side?

Okay, power to the left front headlamp comes from the body control module. See pic 1. Now it is fed through a blue wire with a white tracer. Is that the one you are checking at the light socket? Where are you getting ground?

If you are certain that wire has no power at the socket, I need you to back track to the A pillar of the vehicle in the wiring harness and locate the blue wire with the white tracer again. (See pic 2) There is a splice there that sends a power to the outside mirror signal. Check for power there. If there is, check the splice to make sure a good connection is made. If there is no power, then you need to check right at the body control module.

Now, this vehicle is barely out of warranty. Have you tried contacting a dealership to see if they can take care of it even though it is out by a few miles?

Let me know what you find or if you have other questions.

Take care,
Joe
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Monday, June 29th, 2020 AT 10:10 PM
Tiny
TLEIGHCOX
  • MEMBER
Thank you for your response. We used the ground terminal on the battery. My car doesn't have the turn signal on the outside mirror so I will check it at the BCM. I had to make a quick trip so I'll let you know what I find on Thursday. I live over 100 miles from the nearest dealer so it hasn't been worth the hassle just to be told forget it. Thanks again!
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Tuesday, June 30th, 2020 AT 6:03 PM
Tiny
JACOBANDNICKOLAS
  • EXPERT
Hi,

The signal on the mirror is likely just an option. As far as the issue, if it is related to the body control module, it will be worth the trip. The part won't be cheap if it's bad and it will require programming. I would let GM pay for it if we find that is the issue.

Regardless, I'll watch for your reply. Take care of yourself.

Joe
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Tuesday, June 30th, 2020 AT 9:47 PM

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