Diagnosis Procedure
Regarding Wiring Diagram information, refer to HEADLAMP: WIRING DIAGRAM (without DTRL) or DAYTIME LIGHT SYSTEM: WIRING DIAGRAM (with DTRL).
DIAGNOSIS PROCEDURE CHART
| Step | Action | YES | NO |
|---|---|---|---|
| 1 | CHECK HEADLAMP (HI) FUSES
Is the fuse open? |
Repair the harness and replace the fuse. | GO TO 2 |
| 2 | CHECK HEADLAMP (HI) OUTPUT VOLTAGE
Is battery voltage present? |
GO TO 4 | GO TO 3 |
| 3 | CHECK HEADLAMP (HI) CIRCUIT FOR OPEN
Does continuity exist? |
Replace IPDM E/R. Refer to [IPDM E/R (INTELLIGENT POWER DISTRIBUTION MODULE ENGINE ROOM): REMOVAL AND INSTALLATION ]. | Repair the harnesses or connectors. |
| 4 | CHECK FRONT HEADLAMP (HI) GROUND CIRCUIT Check continuity between the front combination lamp harness connector terminal and ground. Does continuity exist? |
Inspect the headlamp bulb. | Repair the harness. |
| 5 | CHECK CONTINUITY BETWEEN FRONT HEADLAMP LH (HI) AND DAYTIME LIGHT RELAY 1
Does continuity exist? |
GO TO 6. | Repair the harness or connector. |
| 6 | CHECK DAYTIME LIGHT RELAY 1 GROUND CIRCUIT Check continuity between daytime light relay 1 harness connector and ground. Does continuity exist? |
GO TO 7. | Repair the harness or connector. |
| 7 | CHECK DAYTIME LIGHT RELAY 1 Check daytime light relay 1. Refer to [Daytime Light Relay Circuit Check ] Is the inspection result normal? |
Inspect the headlamp bulb. | Replace daytime light relay 1. |