DTC indicator F: | A Short in the Sunlight Sensor Circuit |
1. | Clear the DTC by turning the ignition switch OFF, and then ON (II). |
2. | Operate the climate control system in several modes. |
3. | Check for DTCs using the self-diagnostic. Is DTC F indicated? YES - Go to 4. NO - Intermittent failure.n |
4. | Turn the ignition switch OFF. |
5. | Test the sunlight sensor. Is the sunlight sensor OK? YES - Go to 6. NO - Replace the sunlight sensor.n |
6. | Disconnect the sunlight sensor 2P connector. |
7. | Disconnect climate control unit 28P connector. |
8. | Check for continuity between the No. 25 terminal of climate control unit 28P connector and body ground.
Is there continuity? YES - Repair short to body ground in the wire between the climate control unit and the sunlight sensor.n NO - Go to 9. |
9. | Check for continuity between the No. 25 terminal and the No. 18 terminal of climate control unit 28P connector.
Is there continuity? YES - Repair short in the wires between the climate control unit and the sunlight sensor.n NO - Substitute a known-good climate control unit, and recheck. If the symptom/indication goes away, replace the original climate control unit.n |