ABS and brake warning light came on and cruisealso quit at the same time

BOB SCHIFF

MEMBER
2005 GMC SIERRA
6.0L
V8
2WD
AUTOMATIC
250,000 MILES

Have checked all fuses and they are okay. Abs warning light and brake warning are on and the cruise control does not work. All three things happened at the same time. I have also done an inspection of wiring and they seem to be okay. This is a 2500 hd with a royal service box

Saturday, December 7th, 2013 AT 1:00 PM

2 Replies

FREEMBA

MECHANIC
1,152 POSTS

Check the brake fluid.
If your truck has the hydro-boost system, check the power steering fluid as well as the brake fluid.

Apply and release the park brake a couple of time to be sure that the park brake light switch isn't sticking [making the computer think that brake is applied- in which case it would turn off your cruise control]

Also, you could undo and clean, reground the ebcm, the ground is located on the drivers side front cab mount.

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Saturday, December 7th, 2013 AT 1:57 PM

PAYLESS

MEMBER
1 POST

ABS and Wiring. I have 30 of these van and had a similar issue on one of them. Where the gas and brake pedal are under the floor mat is the harness. Our drivers heal crushed the harness over time and everything quite. I bought a used harness on line and had a friend rewire the whole truck. BIG JOB hope it is not the problem. Good Luck

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Tuesday, December 17th, 2013 AT 8:40 AM