DTC E

DTC indicator light E: An Open in the Sunlight Sensor Circuit

1. Disconnect the sunlight sensor 2P connector.
2. Disconnect climate control unit connector B (30P).




3. Check for continuity between the No. 20 terminal of climate control unit connector B (30P) 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. 3 terminal of climate control unit connector B (30P) and the No. 2 terminal of the sunlight sensor 2P connector

Is there continuity?

YES - Go to step 5.

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 (30P)
7. Test the sunlight sensor.

Is the sunlight sensor OK?

YES - Check for loose wires or poor connections at climate control unit connector B (30P) 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.