TCCM Network Input Messages

Broadcast Message	Originating Module	Message Purpose
Wheel speed data	ABS module	The TCCM uses wheel speed information for the four-wheel drive system to determine percentage of torque to be transferred to the front wheels.
Steering wheel angle	PSCM	The TCCM uses wheel speed information for the four-wheel drive system to determine percentage of torque to be transferred to the front wheels.
Steering wheel angle	PSCM	The TCCM uses steering wheel angle information to disengage the 4WD clutch to prevent bind up during parking lot maneuvers in 4A, 4H, and to some degree in 4L.
Gear and level state	TCM	The TCCM uses gear and level state for the four-wheel drive system to determine percentage of torque to be transferred to the front wheels.