Suburban 1/2 Ton 4WD V8-5.3L VIN Z Flex Fuel (2006)
Steering Wheel: Description and Operation
Steering Wheel Controls Description and Operation
Steering Wheel Controls Description and Operation
The steering wheel control switches duplicate the function of the primary controls of the associated component, through a network of multiple
momentary contact switches and a series of resistors. The body control module (BCM) supplies voltage to the switches and monitors the return signal
for when a switch is pressed, a specific voltage drop occurs. The BCM identifies the one selected, then sends a serial data message that is received by
the component controlled, activating the feature.
This section is intended to diagnosis the circuits between the BCM and the steering wheel control switches. If the primary control for the device is
inoperative, refer to the appropriate section for the component the steering wheel control switch is functioning.
