Inspection Procedure A-11: Hazard warning lights do not flash when power liftgate works automatically: 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. Hazard warning light check
Check that the hazard warning light lights up when the hazard warning light switch is operated.

Q: Is the check result normal?
- YES: Go to Step 2.
- NO: Refer to INSPECTION PROCEDURE: HAZARD WARNING LIGHT DOES NOT ILLUMINATE .
STEP 2. Using scan tool (M.U.T.-III), diagnose the CAN bus line.
CAUTION: To prevent damage to scan tool (M.U.T.-III), always turn the power supply mode of the engine switch to the 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 power supply mode of the engine switch to ON.
3. Diagnose the CAN bus line.
4. Turn the power supply mode of the engine switch to OFF.
Q: Is the CAN bus normal?
- YES: Go to Step 3.
- NO: Repair the CAN bus line. (Refer to DIAGNOSIS .)
STEP 3. Using scan tool (M.U.T.-III), read the other system diagnostic trouble code.
Check if any DTC is stored in the ETACS-ECU.

CAUTION: To prevent damage to scan tool (M.U.T.-III), always turn the power supply mode of the engine switch to the 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 power supply mode of the engine switch to ON.
3. Check if DTC is stored.
4. Turn the power supply mode of the engine switch to OFF.
Q: Is the DTC stored?
- YES: Refer to DIAGNOSIS CODE CHART .
- NO: Go to Step 4.
STEP 4. Using scan tool (M.U.T.-III), check actuator test
Perform the actuator test, and check that the hazard warning light lights up.
- Item 5: Hazard answerback request
Q: Is the check result normal?
- YES: Go to Step 6.
- NO: Go to Step 5.
STEP 5. System retest
Check whether hazard warning lights flash when the power liftgate is operated.

Q: Is the check result normal?
- YES: Intermittent malfunction (Refer to HOW TO COPE WITH INTERMITTENT MALFUNCTION ).
- NO: Replace the power liftgate control unit.
STEP 6. System retest
Check whether hazard warning lights flash when the power liftgate is operated.

Q: Is the check result normal?
- YES: Intermittent malfunction (Refer to HOW TO COPE WITH INTERMITTENT MALFUNCTION ).
- NO: Replace the ETACS-ECU.