DTC 5

DTC 5: An Open in the Sunlight Sensor Circuit

1. Disconnect the sunlight sensor 2P connector.
2. Disconnect climate control unit connector B (22P).




3. Check for continuity between the No.15 terminal of climate control unit connector B (22P) and the No.1 terminal of the sunlight sensor 2P connector.

Is there continuity?

YES - Go to step 4.

NO - Repair open in the wire between the climate control unit and the sunlight sensor.




4. Check for continuity between the No.9 terminal of climate control unit connector B (22P) and the No.2 terminal of the sunlight sensor 2P connector.

Is there continuity?

YES - Go to step 6.

NO - Repair open in the wire between the climate control unit and the sunlight sensor.

5. Reconnect the sunlight sensor 2P connector.
6. Reconnect climate control unit connector B (22P).
7. Test the sunlight sensor.

Is the sunlight sensor OK?

YES - Check for loose wires or poor connections at climate control unit connector B (22P) 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.

NO - Replace the sunlight sensor.