Operation CHARM: Car repair manuals for everyone.

Dual Zone Setting

Adjust the passenger control to select the dual zone mode. The IPM energizes the driver and the passenger air mix valves independently. The passenger may operate the passenger temperature control to request a warmer or a cooler temperature on the passenger side of the vehicle. The IPM energizes the passenger air mix valve actuator to increase or decrease the passenger side discharge temperature, if the set temperature is not the maximum hot or maximum cold setting.