Cruise Control does not work?

CELENTORB

MEMBER
2004 HUMMER H2
6.0L
V8
4WD
AUTOMATIC
155,000 MILES

The cruise control light indicator does not come on. I replaced the combination switch and brake light switch. The scan tool shows everything is functioning properly. Only issue the scanner shows stop lamp applied all the time without the brake being applied or brake lights on.

Saturday, January 28th, 2023 AT 4:19 PM

2 Replies

JACOBANDNICKOLAS

MECHANIC
110,114 POSTS

Hi,

If the brake switch shows it is engaged at all times, do me a favor and disconnect it and see if the scan tool provides the same information.

If it does, you likely have a short to ground between the power supply and the switch. That is completing the circuit and the vehicle thinks the brake lights are on.

See pic below. It shows the fuse that supplies power going to the switch. If you open that circuit by disconnecting the switch and still have the same code, we have a different problem.

Let me know.

Joe

See pic below.

Image (Click to make bigger)