DTC 76

id070200804400

DTC 76

Rear air mix actuator (potentiometer) (present)

POSSIBLE CAUSE

•  Rear air mix actuator malfunction

•  Open circuit between rear air mix actuator and front climate control unit

•  Short circuit between rear air mix actuator (terminal E) and front climate control unit (terminal 2N: 16-pin)

DTC 76	Rear air mix actuator (potentiometer) (present)
POSSIBLE CAUSE	• Rear air mix actuator malfunction • Open circuit between rear air mix actuator and front climate control unit • Short circuit between rear air mix actuator (terminal E) and front climate control unit (terminal 2N: 16-pin)

Diagnostic Procedure

STEP	INSPECTION		ACTION
1	• Inspect rear air mix actuator. (See REAR AIR MIX ACTUATOR INSPECTION.) • Is it okay?	Yes	Go to the next step.
1		No	Replace rear air mix actuator. (See REAR AIR MIX ACTUATOR INSPECTION.)
2	• Disconnect driver side and passenger side front air mix actuator connector. • Disconnect front airflow mode actuator connector. • Disconnect rear airflow mode actuator connector. • Disconnect ambient temperature sensor connector. • Disconnect cabin temperature sensor connector. • Disconnect front and rear evaporator temperature sensor connector. • Is resistance between terminals 2N and 2P of front climate control unit connector (16-pin) more than 840 ohms?	Yes	Go to the next step.
2		No	Repair wiring harness. (Short circuit)
3	• Disconnect front climate control unit connector (16-pin). • Is resistance between terminals 2B and 2P of front climate control unit connector (16-pin) less than 7.8 kilohms?	Yes	Go to the next step.
3		No	Repair wiring harness. (Open circuit)
4	• Is resistance between terminals 2B and 2N of front climate control unit connector (16-pin) less than 6.24 kilohms?	Yes	Inspect the connection of the front climate control unit connector.
4		No	Repair wiring harness. (Open circuit)