Circuit/System Description
WARNING: This page is about a different variant/trim than selected.
The front axle control circuit consists of an electric motor actuator which engages and disengages the front axle. The front axle actuator motor consists of a permanent magnetic motor, a worm gear controlled plunger, a front axle switch and an electronic control circuit within the actuator assembly.
The front axle actuator consists of the following circuits:
- An Ignition 1 voltage circuit
- An axle switch signal circuit
- An axle actuator control circuit
- A ground circuit
When a shift to 4WD Auto, 4WD HI, or 4WD LO is requested, the transfer case shift control module (TCCM) engages the front axle by grounding the front axle control circuit through a current limiting driver.