6. Disconnect the sunlight sensor 5P connector.
7. Disconnect climate control unit connector A (40P).
8. Check for continuity between climate control unit connector A (40P) terminal No. 29 and body ground.
Is there continuity?
YES -
Repair a short to body ground in the wire between the climate control unit and the sunlight sensor.?
NO -
Go to step 9.
9. Check for continuity between climate control unit connector A (40P) terminals No. 8 and No. 29.
Is there continuity?
YES -
Repair a short in the wires between the climate control unit and the sunlight sensor.?
NO -
Go to step 10.
10. Reconnect the sunlight sensor 5P connector.
11. Reconnect climate control unit connector A (40P).
12. Test the sunlight sensor See: Heating and Air Conditioning/Testing and Inspection/Component Tests and General Diagnostics/Sunlight
Sensor Test.
Is the sunlight sensor OK?
YES -
Substitute a known-good climate control unit, and recheck. If the symptom/indication goes away, replace the original climate control unit See:
Heating and Air Conditioning/Control Assembly/Service and Repair/Climate Control Unit Removal/Installation.?
NO -
Replace the sunlight sensor See: Heating and Air Conditioning/Sensors and Switches - HVAC/Solar Sensor/Service and Repair.?
