Cabin Temperature Sensor / Switch: Testing and Inspection

Inspection of Room-Temperature Sensor, Outside-Air Sensor, and Air Thermo Sensor Circuits

Diagnosis

No. 11. 12 [Fix compartment temperature sensor input signal at 25C (77F).]
No. 13, 14 [Fix outside-air-temperature sensor input signal at 15C (59F).]
No. 21, 22 [Fix fin thermo sensor input signal at -2C (-35.6F).]





Troubleshooting Hints
Air conditioner control unit terminal voltages