Brake light no work

MARVIN0105

MEMBER
2002 PONTIAC GRAND AM
4 CYL
2WD
AUTOMATIC

I have a 2002 Pontiac Grand Am, my left brake light won't light when the brake is pressed. All of my bulbs illuminate when the lights and hazards are on. What could be the problem?

Wednesday, February 2nd, 2011 AT 12:49 PM

4 Replies

JDL

MECHANIC
16,098 POSTS

Check the lite blue wire for voltage. That wire carries voltage for left brake lite, use voltage tester. There is a junction at left instrument panel fuse block.

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Wednesday, February 2nd, 2011 AT 8:24 PM

ASHER C SMALE

MEMBER
1 POST
1993 PONTIAC GRAND AM
6 CYL
2WD
AUTOMATIC
100,000 MILES

My brake lights do not work. All lights are good, all fuses good. Think it might be the tail light circuit board. Only problem Pontiac no longer makes a replacement part. Can I bypass the circuit board, by straight wiring the lights?

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Thursday, February 4th, 2021 AT 9:47 AM (Merged)

ASEMASTER6371

MECHANIC
52,797 POSTS

I attached a wiring diagram for you to view.

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

You need to test for voltage to the stoplight switch and the output as well.

https://www.2carpros.com/articles/how-to-check-a-car-fuse

If that is OK, then you need to go to the rear socket and check for power there.

Roy

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Thursday, February 4th, 2021 AT 9:48 AM (Merged)

ASEMASTER6371

MECHANIC
52,797 POSTS

Okay, I attached some rear lens with the circuit boards attached that are used.

Go to car-part. Com and you will see pages of them in your area.

I also attached the brake light switch.

Did you verify no power to the brown wire with the pedal depressed?

Roy

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