Inspection Procedure 4: The headlights do not illuminate when the passing switch is turned ON: Diagnosis

WARNING: This page is about a different car, the 2014 Mitsubishi Outlander. However, it is still accessible from the selected car via links, so may be relevant.

STEP 1. Check the operation of the headlights.
Check that the low-beam and high-beam headlights illuminate normally.

Q: Is the check result normal?
- YES: Go to Step 2.
- NO: Refer to INSPECTION PROCEDURE 1 "NONE OF THE LOW-BEAM HEADLIGHTS ILLUMINATE." and INSPECTION PROCEDURE 2 "NONE OF THE HIGH-BEAM HEADLIGHTS ILLUMINATE." .
STEP 2. Using scan tool (M.U.T.-III), read the ETACS-ECU diagnostic trouble code.
CAUTION: To prevent damage to scan tool (M.U.T.-III), always turn the ignition switch to the "LOCK" (OFF) position before connecting or disconnecting scan tool (M.U.T.-III).
1. Connect scan tool (M.U.T.-III). Refer to "HOW TO CONNECT SCAN TOOL (M.U.T.-III) ."
2. Turn the ignition switch to the "ON" position.
3. Check whether the ETACS-ECU related DTC is stored.
4. Turn the ignition switch to the "LOCK" (OFF) position.
Q: Is the DTC stored?
- YES: Troubleshoot the ETACS-ECU. Refer to DIAGNOSTIC TROUBLE CODE CHART .
- NO: Go to Step 3.
STEP 3. Retest the system
Check that the headlights (low-beam and high-beam) illuminates normally when turning ON the passing switch.

Q: Is the check result normal?
- YES: The trouble can be an intermittent malfunction (Refer to HOW TO COPE WITH INTERMITTENT MALFUNCTION ).
- NO: Replace the ETACS-ECU.