Inspection Procedure 7: The headlight automatic shutdown function does not work normally: 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. Using scan tool (M.U.T.-III), Check the customization function
Use the ETACS-ECU customization function to check that the "Headlight auto cut customize" is set to "Enable (C-spec.)"

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 THE SCAN TOOL (M.U.T.-III) ."
2. Turn the ignition switch to the "ON" position.
3. Use the ETACS-ECU configuration function to check that the "Headlight auto cut customize" is set to "Enable (C-spec.)"
4. Turn the ignition switch to the "LOCK" (OFF) position.
Q: Is the check result normal?
- YES: Go to Step 2.
- NO: Use the ETACS-ECU customization function to set the "Headlight auto cut customize" to "Enable (C-spec.)" (Refer to CUSTOMIZATION FUNCTION ).
STEP 2. Using scan tool (M.U.T.-III), read the ETACS diagnostic trouble code.
Check if DTC is stored in the ETACS-ECU.

Q: Is the DTC stored?
- YES: Troubleshoot the ETACS-ECU. Refer to DIAGNOSTIC TROUBLE CODE CHART .
- NO: Go to Step 3.

STEP 3. Using scan tool (M.U.T.-III), check data list

Use the ETACS-ECU service data to check the signals related to the operation of headlight automatic shutdown function.

Turn the ignition switch to the LOCK (OFF) position.

Turn the lighting switch to the "TAIL" position.

Item No.	Item name	Normal condition
Item 254	IG voltage	1 V or less
Item 340	Head light switch (tail)	ON

Turn the lighting switch to the "HEAD" position.

Item No.	Item name	Normal condition
Item 341	Head light switch	ON

Open the driver's door.

Item No.	Item name	Normal condition
Item 256	Dr door ajar switch	Open

OK: Normal conditions are displayed for all the items.

Q: Is the check result normal?

Normal conditions are displayed for all the items.: Go to Step 4.

Normal condition is not displayed for item No. 254.: Troubleshoot the ETACS-ECU. Refer to INSPECTION PROCEDURE 2: THE IGNITION SWITCH (IG1) SIGNAL IS NOT RECEIVED .

Normal condition is not displayed for item No. 340 or 341.: Troubleshoot the ETACS-ECU. Refer to INSPECTION PROCEDURE 11 "THE COLUMN SWITCH SIGNAL IS NOT RECEIVED " .

Normal condition is not displayed for item No. 256.: Troubleshoot the ETACS-ECU. Refer to INSPECTION PROCEDURE 5: THE FRONT DOOR SWITCH (DRIVER'S SIDE) SIGNAL IS NOT RECEIVED .

STEP 4. Retest the system
Check that the headlight automatic shutdown function works normally.

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.