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Left headlight, brake light and turn signal do not work?

Tiny
CALEBRILEY
  • MEMBER
  • 2012 FORD F-150
  • 3.5L
  • V6
  • TURBO
  • 4WD
  • AUTOMATIC
  • 170,000 MILES
My left head light, rear brake light, and left rear turn signal aren’t working. The front left turn signal works, and flashes quickly. The left signal on the mirror also works. All rear running lights and turn signals, including the left side work. Is this a BCM issue? I’ve checked ground, bulbs and fuses.
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Sunday, June 25th, 2023 AT 1:13 PM

1 Reply

Tiny
KEN L
  • MASTER CERTIFIED MECHANIC
  • 48,363 POSTS
Yep, the BCM controls these functions but if you want to be sure you should do a CAN scan which will give you code for the BCM, you can get a CAN scanner (Controller Area Network) which will work on most cars from Amazon.

here is a video to show you how:

https://youtu.be/u-4syLc-ifQ

Here is how to replace the BCM, you can get a preprogrammed unit by searching Google or Ebay. Check out the images (below). Please let us know if you need anything else to get the problem fixed.
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Sunday, June 25th, 2023 AT 4:10 PM

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