Rear

WATER VALVE (REAR)

On models equipped with the optional rear heater-A/C unit, a cable-actuated rear water valve is located near the back of the rear unit housing. The rear water valve is installed in the rear unit heater hose between the engine and the rear combination coil. The rear water valve control cable is operated by the rear mode control motor.

The rear mode control motor is controlled by a momentary switch that is integral to the heater-A/C control. When the rotary-type temperature control knob is moved to a position that is at least 80 percent of its travel from the full cool position, the switch closes the signal circuit for the rear mode control motor to ground. This signal causes the rear mode control motor to move the rear heat-A/C mode door to the heat position and open the rear water valve. When the switch opens the signal circuit, the motor moves the rear heat-A/C mode door to the A/C position and closes the rear water valve.

The rear water valve cannot be repaired and, if faulty or damaged, it must be replaced.