DRL System Symptom Diagnosis (If Equipped)
WARNING: This page is about a different car, the 2008 Suzuki Grand Vitara and 2007 Suzuki Grand Vitara. However, it is still accessible from the selected car via links, so may be relevant.
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.
DRL SYSTEM SYMPTOM DIAGNOSIS TABLE
| Condition | Possible Cause | Action |
|---|---|---|
| Headlight does not light when lighting switch is in OFF position and engine is running | Lighting switch faulty | Check lighting switch by referring to HEADLIGHT SWITCH (IN LIGHTING SWITCH) INSPECTION . |
| Parking brake switch faulty | Check parking brake switch by referring to PARKING BRAKE SWITCH INSPECTION . | |
| BCM faulty | Check BCM for function by referring to INSPECTION OF BCM AND ITS CIRCUITS . | |
| Wiring or grounding faulty | Repair circuit . | |
| Headlight lights even if engine stop and lighting switch is OFF position | Lighting switch faulty | Check system referring to HEADLIGHT SWITCH (IN LIGHTING SWITCH) INSPECTION . |
| Wiring or grounding faulty | Repair circuit . | |
| BCM faulty | Check BCM for function by referring to INSPECTION OF BCM AND ITS CIRCUITS . |