headlights

FORD WINDSTAR
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YOLLUP
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  • 4 POSTS
02 ford windstar . no power going to right headlight, high or low. left works fine . drl also works fine. possible cause.
Jul 11, 2007 at 8:15 PM
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KASEKENNY
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You have a fuse for each headlight, so we need to start by checking the fuses that go to this headlamp.

Here is a guide that will help with doing this:
https://www.2carpros.com/articles/how-to-check-a-car-fuse

If the fuse is okay, then we more than likely have an issue with the FEM which is the control module for the head lights.

The way this works is the fuse applies voltage all the time and the FEM grounds the circuit.

So, the way to test this is to just ground the bulb and see if it works.

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

Please see the wiring diagram below for this and let us know what you find.

Thanks
Feb 6, 2022 at 6:17 PM
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YOLLUP
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  • 4 POSTS
Headlight works when you ground wires.
Feb 6, 2022 at 6:18 PM
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KASEKENNY
  • CAR REPAIR CONTRIBUTOR
  • 18,907 POSTS
Okay. That is great info. So, we need to replace the FEM and I am going to attach the process below.

Please run through this info and let us know what happens.

Thanks
Feb 6, 2022 at 6:19 PM
Repair Safety Notice: This information is for general instructional purposes only. Vehicle repair can be dangerous. Verify all information, follow manufacturer service procedures, use proper tools and safety equipment, and consult a qualified repair shop when needed.