| DTC 3: | An Open in the Outside Air Temperature Sensor Circuit |
| 1. | Remove the outside air temperature sensor. |
| 2. | Measure the resistance between the No. 1 and No. 2 terminals of the outside air temperature sensor. *Dip the sensor in ice water, and measure resistance. Then pour hot water on the sensor, and check for a change in resistance.
*Is the resistance within the specifications shown on the graph? YES - Go to 3. NO - Replace the outside air temperature sensor.n |
| 3. | Disconnect climate control unit connectors A (12P) and B (16P). |
| 4. | Check for continuity between the No. 10 terminal of climate control unit connector A (12P) and the No. 1 terminal of the outside air temperature sensor 2P connector.
Is there continuity? YES - Go to 5. NO - Repair open in the wire between the climate control unit and the outside air temperature sensor.n |
| 5. | Check for continuity between the No. 5 terminal of climate control unit connector B (16P) and the No. 2 terminal of the outside air temperature sensor 2P connector.
Is there continuity? YES - Check for loose wires or poor connections at climate control unit connectors A (12P) and B (16P) and at the outside air temperature sensor 2P connector. If the connections are good, substitute a known-good climate control unit, and recheck. If the symptom/indication goes away, replace the original climate control unit.n NO - Repair open in the wire between the climate control unit and the outside air temperature sensor.n |