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Rear brake lights not stopped working

Tiny
WADE HALL
  • MEMBER
  • 2004 FORD TAURUS
  • 6 CYL
  • 2WD
  • AUTOMATIC
  • 185,000 MILES
I changed the battery in my car and the brake lights on the fender on both side stopped working. The turn signal works, the running lights work, and the middle brake light works. Any ideas would be appreciated. Checked fuse and it is good.
Monday, May 6th, 2019 AT 6:33 AM

7 Replies

Tiny
ASEMASTER6371
  • MECHANIC
  • 52,797 POSTS
Good morning,

Did you check for power to the brake lights at the rear? I highlighted the wires for you to check for power with the brake pedal depressed.

Roy
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Monday, May 6th, 2019 AT 8:15 AM
Tiny
WADE HALL
  • MEMBER
  • 4 POSTS
No, I haven't the tools to check that. But I am sure no power is getting to them.
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Monday, May 6th, 2019 AT 10:07 AM
Tiny
ASEMASTER6371
  • MECHANIC
  • 52,797 POSTS
You need to verify. If you have a third brake light, then you have power through the switch and the same wire that feeds the third light feeds both rear brake lights as highlighted in the diagram.

Roy
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Monday, May 6th, 2019 AT 10:11 AM
Tiny
WADE HALL
  • MEMBER
  • 4 POSTS
Yes, there is a third light that is built into the fin on the trunk. It works fine but the other two do not.
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Monday, May 6th, 2019 AT 11:59 AM
Tiny
ASEMASTER6371
  • MECHANIC
  • 52,797 POSTS
Okay. As I said you need to verify power to the rear lights socket with a volt meter.

Roy
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Monday, May 6th, 2019 AT 1:07 PM
Tiny
WADE HALL
  • MEMBER
  • 4 POSTS
I will try.
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Monday, May 6th, 2019 AT 2:25 PM
Tiny
ASEMASTER6371
  • MECHANIC
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Sounds like a plan. Please let me know the results.

Roy
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Monday, May 6th, 2019 AT 4:32 PM

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