Rear End Door Window Defogger Symptom Diagnosis
NOTE:
- Use of SUZUKI scan tool makes it easy to check whether a faulty condition is on the input side or output side of BCM. For checking procedure, refer to "DIAGNOSIS USING OUTPUT TEST FUNCTION OF SUZUKI SCAN TOOL " under Scan Tool Data .
- Check each part in the order from the top of the following list.
| Condition | Possible Cause | Action |
|---|---|---|
| Rear end door window defogger does not operate | Circuit fuse blown | Replace fuse and check for short circuit . |
| Rear end door window defogger relay faulty | Check rear end door window defogger relay referring to REAR END DOOR WINDOW DEFOGGER RELAY INSPECTION . | |
| Defogger wire faulty | Check defogger wire referring to REAR END DOOR WINDOW DEFOGGER WIRE INSPECTION . | |
| Wiring or grounding faulty | Repair circuit . | |
| HVAC control module faulty | Check HVAC control module referring to INSPECTION OF HVAC CONTROL MODULE AND ITS CIRCUITS . | |
| BCM faulty | Replace after making sure that none of above parts is faulty . |