DTC indicator C or DTC B1227: An Open in the Outside Air Temperature Sensor Circuit Clear the DTC. Turn the ignition switch OFF, and then ON. Operate the climate control system is several modes. Check the DTCs. Is DTC C or B1227 indicated?
YES | - | Go to Step 5 .
NO | - | Intermittent failure, check for loose wires or poor connections on the outside air temperature sensor circuit.■
Remove the outside air temperature sensor and test it. Does the outside air temperature sensor test OK?
YES | - | Go to Step 6 .
NO | - | Replace the outside air temperature sensor .■
Disconnect climate control unit connector A (22P). Check for continuity between the No. 12 terminal of climate control unit connector A (22P) and the No. 1 terminal of the outside air temperature sensor 2P connector. Is there continuity?
YES | - | Go to Step 8 .
NO | - | Repair open in the wire between the climate control unit and the outside air temperature sensor.■