7910255

1.

Ignition "OFF"

2.

Disconnect driver Air Mix actuator and A/C control module main harness connector.

3.

Connect (+) terminal of battery to WARM(+) of driver Air Mix actuator and (-) terminal to COOL(-) .(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.( WARM(+) and COOL(-) ) .(Component side)

caution

Check for proper operation when BATT(12V) power is supplied and follow safety regulations.

Specification : Refer the specifications in Fig.1)

Fig.1)

Actuator harness	WARM(+)	COOL(-)	Door position
Battery terminal	12 V	ground	Max.warm
Battery terminal	ground	12 V	Max.cool

Fig.1) Function of the actuator motor according to terminal connection type. (observe safety regulations)

6.

Is measured value within specification?

▶ Perform following procedures.

▶ Substitute with a known-good passenger driver Air Mix actuator and check for proper operation.

▶ If the problem is corrected, replace passenger driver Air Mix actuator and then go to "Verification of Vehicle Repair" procedure.

7.

Ignition "OFF"

8.

Connect Driver Air Mix Potentiometer(actuator) and A/C control module main harness connector.

9.

Ignition "ON"

10.

Measure voltage between Signal(F/B) terminal of driver Air Mix Potentiometer(actuator) harness connector and Sensor ground(-) terminal of A/C control module harness connector .(Component side)

Specification : Refer the specifications in Fig.2)

Fig.2)

Door position	Voltage
Max. cool	0.3±0.15V
Max. warm	4.7±0.15V

Fig.2) Voltage value of Driver Air Mix Potentiometer(actuator) as a function of temp door position.

11.

Is measured value within specification?

	▶ Check connectors for looseness, poor connection, bending, corrosion, contamination, deterioration, or damage. Repair or replace as necessary and then go to "Verification of Vehicle Repair" procedure.
	▶ Substitute with a known-good driver Air Mix Potentiometer(actuator) and check for proper operation. If the problem is corrected, replace driver Air Mix Potentiometer(actuator) and then go to "Verification of Vehicle Repair" procedure.