brake lights are not working He has replace the brake on/off switch and checked all the fuses

2003 FORD RANGER
79,000 MILES • 6 CYL • 2WD • AUTOMATIC
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MEUJAKEMMY
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  • 1 POST
My husband's 2003 Ford Ranger's brake lights are not working He has replace the brake on/off switch and checked all the fuses. And also has tried changeing the bulbs with no sucess of fixing the problem. Can you help us?
Jan 27, 2009 at 11:07 AM
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SQM
  • ✓ASE Certified Mechanic
  • 6,383 POSTS
  • ASE Certified Mechanic
Hello,

This sounds like a wiring issue. Likely bad ground.
The ground connection on these vehicles can corrode and the lights will not function.

Here is a helpful guide on how to check wiring:

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

I have attached the wiring schematics for the lights for your reference.

Please let me know of any questions.
Thank you.
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Oct 22, 2021 at 8:56 PM
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