DTC 37

id070200803500

DTC 37 | Passenger-side front air mix actuator (potentiometer) (present) (L.H.D.) Driver-side front air mix actuator (potentiometer) (present) (R.H.D.)
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POSSIBLE CAUSE | • Passenger-side (driver-side) front air mix actuator malfunction • Open circuit between passenger-side (driver-side) front air mix actuator and front climate control unit • Short circuit between passenger-side (driver-side) front air mix actuator and front climate control unit

Diagnostic procedure

STEP | INSPECTION | ACTION
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1 | • Inspect passenger-side (driver-side) front air mix actuator. (See FRONT AIR MIX ACTUATOR INSPECTION.) • Is it okay? | Yes | Go to the next step.
No | Replace passenger-side (driver-side) front air mix actuator. (See FRONT AIR MIX ACTUATOR REMOVAL/INSTALLATION.)
2 | • Disconnect driver side (passenger side) front air mix actuator connector. • Disconnect front airflow mode actuator connector. • Disconnect rear air mix 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 following terminals of front climate control unit connector (16-pin) more than 840 ohms? ― 2P and 2G (passenger-side) (L.H.D.) ― 2P and 2F (driver-side) (R.H.D.) | Yes | Go to the next step.
No | Repair wiring harness. (Short circuit)
3 | • Disconnect front climate control unit connector (16-pin). • Is resistance between terminals 2P and 2B of front climate control unit connector (16-pin) less than 7.8 kilohms? | Yes | Go to the next step.
No | Repair wiring harness. (Open circuit)
4 | • Is resistance between following terminals of front climate control unit connector (24-pin) less than 6.24 kilohms? ― 2B and 2G (passenger-side) (L.H.D.) ― 2B and 2F (driver-side) (R.H.D.) | Yes | Inspect the connection of the front climate control unit connector.
No | Repair wiring harness. (Open circuit)