## DTC Troubleshooting: 5

DTC 5: | An Open in the Sunlight Sensor Circuit

1. | Disconnect the sunlight sensor 2P connector.

2. | Disconnect climate control unit connectors A (12P) and B (16P).

3. | Check for continuity between the No. 9 terminal of climate control unit connector A (12P) and the No. 1 terminal of the sunlight sensor 2P connector. Is there continuity? YES - Go to 4. NO - Repair open in the wire between the climate control unit and the sunlight sensor.n

4. | Check for continuity between the No. 5 terminal of climate control unit connector B (16P) and the No. 2 terminal of the sunlight sensor 2P connector. Is there continuity? YES - Go to 5. NO - Repair open in the wire between the climate control unit and the sunlight sensor.n

5. | Reconnect the sunlight sensor 2P connector.

6. | Reconnect climate control unit connectors A (12A) and B (16P).

7. | Test the sunlight sensor. Is the sunlight sensor OK? YES - Check for loose wires or poor connections at climate control unit connectors A (12P) and B (16P) and at the sunlight 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 - Replace the sunlight sensor.n