Inspection Procedure 3: The Luggage Compartment Light Does Not Illuminate 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.

Use the ETACS-ECU service data to check the signals related to the operation of luggage compartment light.

Open the liftgate.

Item No.	Item name	Normal condition
260	Gate ajar switch	Open

OK: Normal condition is displayed.

Q: Is the check result normal?

YES: Go to Step 3.
NO: Troubleshoot the ETACS-ECU. Refer to INSPECTION PROCEDURE 9: THE LIFTGATE LOCK ACTUATOR < VEHICLES WITHOUT POWER LIFTGATE > OR LIFTGATE LATCH < VEHICLES WITH POWER LIFTGATE > SIGNAL IS NOT RECEIVED .

STEP 3. Luggage compartment light bulb check
Check that the luggage compartment light bulb is normal.

Q: Is the check result normal?
- YES: Go to Step 4.
- NO: Replace the luggage compartment light bulb.
STEP 4. Check of open circuit in (LP+1) line between the luggage compartment light connector and ETACS-ECU connector.
Q: Is the check result normal?
- YES: Go to Step 5.
- NO: Repair the connector(s) or wiring harness.
STEP 5. Check of open circuit in GLP- line between the luggage compartment light connector and ETACS-ECU connector.
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 ground line between the luggage compartment light connector and ground.
Q: Is the check result normal?
- YES: Replace the luggage compartment light, and then go to Step 7.
- NO: Repair the connector(s) or wiring harness.
STEP 7. Retest the system
Check that the luggage compartment light illuminates and 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.