When brakes are applied the back-up lights come on along with the brake lights. What could be the cause of this? Already cost me a ticket...

Asked by Jan 30, 2013 at 05:41 PM about the 2003 Chevrolet Express

Question type: Maintenance & Repair

The back-up lights come on when the brakes are applied. Brake lamps are on but why the back-up lights, what causes this?? Already cost me a ticket...

8 Answers

107,805

I would say that the ground is bad on the brake light sockets. When the power goes to the brake light bulbs, it backfeeds through the reverse light filaments to get to ground.

7 people found this helpful.

@tenspeed, good one dude! you've got real imagination~

1 people found this helpful.

Yes. of course. Bad ground on the light fixture (both of them?), How would a person repair this other than to buy a replacement?

3 people found this helpful.
107,805

It's not imagination - it's experience from being a master electrician and working in the skilled trades for over forty years. I've seen cars with bad grounds light up turn signal dash indicators. --- You repair it by running a new ground wire. It's a lot easier than trying to find where the old ground came loose.

8 people found this helpful.
23,325

what comes on when you reverse? some tails have more than one globe for brakes and ofcoarse one for reverse also ,if taken apart and reassembled taillenses pluged globes in wrong holes you will lite the white, now how did an ace bucher like me know that?

4 people found this helpful.

got to get the 'lectricity to through to the filament to the plate for ground without condensation ruining the connection. Sounds like solder to me. Do not use and acid flux.

405

Tail light bulbls are likely mounted in a circuit board. replace the board

2003, and this cat has no money. if it were just a circuit board could not be repaired?

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