Component Inspection

Component Inspection

Check A/C Control Unit
1. Engine "ON".
2. Disconnect intake actuator.
3. Measure voltage value between terminal "1" of A/C control unit and chassis ground.

Specification : 5V




4. Is the measured voltage within specifications ?





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








(6) Dose the actuator work properly ?





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

Specification : Refer the specifications in fig 3)




Fig.3)





Fig.3) Specifications : Voltage value of intake potentiometer as a function of intake door position.
(4) Is the measured voltage within specifications in fig 3) ?