Component Inspection

Component Inspection

Check passenger air mix actuator.
1. Check actuator motor
(1) Ignition "OFF".
(2) Disconnect passenger air mix actuator.
(3) Connect (+) terminal of battery to terminal 3 of passenger air mix actuator and (-) terminal to terminal 4.
(4) Verify that the temperature actuator operates to the hot position.
(5) Verify that the temperature actuator operates to the cool position with reverse connecting. ((+) to 4 and (-) to 3)




(6) Dose the actuator work properly ?





2. Check actuator potentiometer
(1) Ignition "ON".
(2) Connect passenger air mix actuator.
(3) Measure voltage between terminal "5" and "6" of passenger air mix actuator while operating the temp switch.

Specification : Refer the specifications in fig 3)





(4) Is the measured voltage within specifications in fig 3) ?





Check A/C Control Unit
1. Engine "ON".
2. Connect A/C Control Unit.
3. Measure voltage between terminal "16" and "17" of A/C Control Unit while operating the temp switch.

Specification : Approx. 12V





4. Is the measured voltage within specifications ?