Air Distribution - Auxiliary Control

The auxiliary HVAC system provides ventilation for the rear seat occupants.

The auxiliary mode actuator shares a control circuit with the auxiliary air temperature actuator.The auxiliary mode is controlled by a rotary knob on the auxiliary HVAC control module. If change of position is required for both actuators, then the auxiliary HVAC control module positions the auxiliary air temperature actuator first. All control circuits for the auxiliary actuators are at a low voltage potential until a change of position is required. The module then applies a high voltage potential to the appropriate control circuit, which will rotate the actuator.