Operation CHARM: Car repair manuals for everyone.

Air Temperature Valve

The air temperature valve determines how much air flows through the heater core, which determines the temperature of the air to the outlets. The air temperature valve is moved by the LH electric actuator. The position of the air temperature valve is determined by the voltage level of the temperature control output from the heater-A/C control. The LH electric actuator is powered with the ignition switch in the on position. Voltage is supplied through the HVAC fuse and circuit 41 (BRN).