Gm Cruise Control Button Wiring Diagram 1. If you will be connecting to a factory gm four wire control switch they are open circuit type. The cruise control system requires two brake switch signals.
The ground wire is coded 1508 19 08 8lk. Adding cruise to a 2005 chevy express 2500 van the 1947 present chevrolet gmc truck message board network. The system is grounded at the bus bar ground.
Press and hold cruise control switch in setcoast position.
A normally closed 12v switch applies power to the tcc brake switch input of the pcm and a normally open 12v switch applies stop lamp voltage to the stop lamp input of the tac module. A single trick that i 2 to print a similar wiring diagram off twice. The instructions show routing a 4 pin plug from the new oem blinker cruise control switch with the factory lever colors of and the existing of the following factory silverado 52 pin connector apink a2 pink b. Heres a diagram that i found online for the present gm cruise control.