Electrical passenger side window does not work

2002 FORD MUSTANG
500,000 MILES • 2WD • AUTOMATIC
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JMES
  • MEMBER
  • 1 POST
The driver’s side window works but, the passenger side window does not work, all of a sudden. We tried checking the the fuses and even changed the window regulator and motor and switches. Also, the button to open the trunk, on the passenger side, does not work either.
Oct 8, 2019 at 6:38 PM
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JACOBANDNICKOLAS
  • ✓ASE Certified Mechanic
  • 110,194 POSTS
  • ASE Certified Mechanic
Welcome to 2CarPros.

We need to determine if it is a power issue or a ground issue. The first thing I want you to check is if there is power to the pink wire going to the window switch on the passenger side. If there is, then I need you to check the tan/lt blue and the white/yellow wires have continuity to ground when the key is off and the switch is in the neutral position. If there is no continuity to ground, there are two splices in the wiring before it gets to ground so you will need to trace them to confirm they are not damaged and also check the ground to make sure it is tight, clean, free of corrosion, and nothing was damaged.

See the attached wiring schematic as a reference.

Here are a few links you may find helpful:

https://www.2carpros.com/articles/how-to-use-a-test-light-circuit-tester

https://www.2carpros.com/articles/how-to-use-a-voltmeter

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

__________________________

Let me know what you find.

Joe
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Oct 8, 2019 at 8:16 PM
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