96 Silverado brake/tail lamps

Kennychev3 · 10-29-2008, 07:25 PM

The brake lights and rear signals work on my 96 Silverado until the headlamp switch is turned on and then no brake lights or tail lamps work but the rear turn signals do with a fast blinking. Reverse lamps work until the headlamp switch is on.

All fuses are good and I just changed out both tail lamp circuit boards.

Any ideas on the problem and solution??? Thanks

JOHN JAY · 10-29-2008, 07:32 PM

the toggle switch in the dash was the problem I had

Kennychev3 · 10-29-2008, 07:37 PM

Do I have to remove the dash/ instrument panel to change the toggle/light switch?

JOHN JAY · 10-29-2008, 07:41 PM

mines a 93 and just a few torques screws around the instrument cluster gives you access

stumpuller454 · 10-30-2008, 08:12 AM

If your have trailer wiring at the rear check for corrosion or shorts....

Case 7230 · 10-30-2008, 09:33 AM

Quote:

Originally Posted by stumpuller454

If your have trailer wiring at the rear check for corrosion or shorts....

Yes, probably a bad ground.

mrjohnwayne · 10-30-2008, 09:51 AM

Quote:

Originally Posted by Kennychev3

Do I have to remove the dash/ instrument panel to change the toggle/light switch?

IIRC you do, but the dash bezel just pops off. Only thing to watch for is the emergency flasher switch. it can get caught in the bezel and snap off when removing...

Quote:

Originally Posted by stumpuller454

If your have trailer wiring at the rear check for corrosion or shorts....

Good tip here too!

Kennychev3 · 10-31-2008, 05:22 AM

I have changed the headlight switch and both taillamp circuit boards and the problem still exist. Now on to searching for rusted grounds and shorts. Thanks for the help!

10-29-2008, 07:25 PM	#1
Kennychev3 Junior Member Join Date: Oct 2008 Posts: 3	96 Silverado brake/tail lamps The brake lights and rear signals work on my 96 Silverado until the headlamp switch is turned on and then no brake lights or tail lamps work but the rear turn signals do with a fast blinking. Reverse lamps work until the headlamp switch is on. All fuses are good and I just changed out both tail lamp circuit boards. Any ideas on the problem and solution??? Thanks

10-30-2008, 08:12 AM	#5
stumpuller454 Senior Member Join Date: Dec 2007 Location: Grande Prairie, AB Posts: 2,043	If your have trailer wiring at the rear check for corrosion or shorts.... __________________ SUPERCHARGED 454 K2500 GMC! 450hp and 600ft/lbs http://www.youtube.com/watch?v=WJ27RJHfJKE "sailing with Captain Morgan often!"

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10-29-2008, 07:32 PM	#2
JOHN JAY Senior Member Join Date: Sep 2008 Posts: 196	the toggle switch in the dash was the problem I had

10-29-2008, 07:37 PM	#3
Kennychev3 Junior Member Join Date: Oct 2008 Posts: 3	Do I have to remove the dash/ instrument panel to change the toggle/light switch?

10-29-2008, 07:41 PM	#4
JOHN JAY Senior Member Join Date: Sep 2008 Posts: 196	mines a 93 and just a few torques screws around the instrument cluster gives you access

10-31-2008, 05:22 AM	#8
Kennychev3 Junior Member Join Date: Oct 2008 Posts: 3	I have changed the headlight switch and both taillamp circuit boards and the problem still exist. Now on to searching for rusted grounds and shorts. Thanks for the help!