brake lights

2006 FORD FOCUS
53,000 MILES
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BRIAN SWINNERTON
  • MEMBER
  • 1 POST
when I apply the brakes the front side lights come on.
Feb 25, 2017 at 4:00 AM
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KASEKENNY
  • ✓ASE Certified Mechanic
  • 18,907 POSTS
  • ASE Certified Mechanic
This is most likely due to the generic electronic module (GEM) has failed. The way to confirm this is to go to the GEM and press the brake pedal and measure voltage coming from the GEM to these front lights. Clearly there should not be any and if you are then the GEM has failed.

I attached the process and wiring diagrams below. Here is a guide on how to test this voltage:

https://www.2carpros.com/articles/how-to-check-wiring

Let us know what you find with this and we can go from there. Thanks
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Jan 16, 2021 at 10:51 AM
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