Inspection Procedure 1: The Ignition Key Cylinder Illumination Light Does Not Illuminate/Extinguish 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.

Required Special Tools:

MB992006: Extra fine probe
MB991223: Harness set

STEP 1. Using scan tool (M.U.T.-III), read the 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 TABLE .
- NO: Go to Step 2.

STEP 2. Using scan tool (M.U.T.-III), check data list.

Check the signal related to the operation of ignition key cylinder illumination light.

Turn the ignition switch to the LOCK "(OFF)" position.
Remove the ignition key from the ignition key cylinder.

Open the driver's door.

Item No.	Item name	Normal condition
Item 228	Dr door unlock	ON
Item 254	IG voltage	1 V or less
Item 256	Dr door ajar switch	Open
Item 264	Handle lock switch	Key in → Key out
Item 270	Dr door lock switch	Not lock
Item 271	Dr door unlock switch	Unlock

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 3.

Normal condition is not displayed for item No. 228.: Troubleshoot the ETACS-ECU. Refer to INSPECTION PROCEDURE 4: THE FRONT DOOR LOCK ACTUATOR (DRIVER'S SIDE) SIGNAL IS NOT RECEIVED .

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. 256.: Troubleshoot the ETACS-ECU. Refer to INSPECTION PROCEDURE 5: THE FRONT DOOR SWITCH (DRIVER'S SIDE) SIGNAL IS NOT RECEIVED .

Normal condition is not displayed for item No. 264.: Troubleshoot the ETACS-ECU. Refer to INSPECTION PROCEDURE 3: THE KEY REMINDER SWITCH SIGNAL IS NOT RECEIVED. < VEHICLES WITHOUT KOS > .

Normal condition is not displayed for item No. 270, 271.: Troubleshoot the ETACS-ECU. Refer to INSPECTION PROCEDURE 4: THE FRONT DOOR LOCK ACTUATOR (DRIVER'S SIDE) SIGNAL IS NOT RECEIVED .

STEP 3. Check of open circuit in LP+3 line key reminder switch connector and ETACS-ECU connector.
Q: Is the check result normal?
- YES: Go to Step 4.
- NO: Repair the connector(s) or wiring harness.
STEP 4. Check of ignition key cylinder illumination light bulb
Check that the ignition key cylinder illumination light bulb is normal.

Q: Is the check result normal?
- YES: Go to Step 5.
- NO: Replace the bulb of the ignition key cylinder illumination light.
STEP 5. Check of open circuit in ground line between key reminder switch connector and ground.
Q: Is the check result normal?
- YES: Go to Step 6.
- NO: Repair the connector(s) or wiring harness.
STEP 6. Check of open circuit in (RLP-1, HL1+) line between key reminder switch connector and ETACS-ECU connector.
Q: Is the check result normal?
- YES: Go to Step 7.
- NO: Repair the connector(s) or wiring harness.
STEP 7. Retest the system
Check that the ignition key cylinder illumination light illuminates/extinguishes 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.