Component Inspection

Component Inspection

Check Driver Direction actuator
1. Ignition "OFF"
2. Disconnect Driver Direction actuator and A/C control unit main harness connector.
3. Connect (+) terminal of battery to DEF (+) of Driver air mix actuator and (-) terminal to VENT (-). (Component side)
4. Verify that the temperature actuator operates to the cool position
5. Verify that the temperature actuator operates to the warm position with reverse connecting. (DEF (+) and VENT (-)). (Component side)

Specification : Refer the specifications in fig. 1)



fig. 1)





fig. 1) ** Function of the actuator motor according to terminal connection type. (observe safety regulations)
6. Is "Door position" display near the specified value ?





Check potentiometer
1. Ignition "OFF"
2. Connect Driver Direction actuator and A/C control unit main harness connector.
3. Ignition "ON"
4. Measure voltage between Signal (F/B) terminal of Driver Direction actuator harness connector and Sensor ground (-) terminal of A/C-ECU harness connector. (Component side)

Specification : Refer the specifications in fig. 2)



fig. 2)





fig. 2) ** Voltage value of Direction potentiometer as a function of position of mode switch
5. Is "voltage" display near the specified value ?