Inspection Procedure J-12

Headlight and Taillight: When the daytime running light function is operating, the headlights (low-beam) continue lighting in a reduced beam state even if the headlight switch turns on.

Daytime Running Light Circuit:

TECHNICAL DESCRIPTION (COMMENT)
The front-ECU may be defective if the daytime running light function does not operate normally.

TROUBLESHOOTING HINT
The front-ECU may be defective

DIAGNOSIS

STEP 1. Check the headlight operation.

Q: Do the headlights illuminate?

YES: Go to Step 2.

NO: Repair the headlights first.

STEP 2. Replace the front-ECU.

Q: Do the daytime running light function work normally?

YES: No action is necessary and testing is complete.

NO: Refer to Inspection Procedure J-11 "Daytime running light function dose not work normally."