Inspection Procedure A-5: Power liftgate automatic operation (open) 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. Parts installation check of liftgate
Check whether a component other than Mitsubishi genuine parts or accessories is fitted on the liftgate.

Q: Is the check result normal?
- YES: Go to Step 2.
- NO: Remove the components other than Mitsubishi genuine parts or accessories.
STEP 2. Liftgate gas spring check
Visually check the liftgate gas spring for damage. Also check whether its operation is too smooth or too heavy.

Q: Is the check result normal?
- YES: Go to Step 3.
- NO: Replace the liftgate gas spring.
STEP 3. Interference inspection: quarter trim and power liftgate motor arm
Check whether the quarter trim interferes with the power liftgate motor arm.

Q: Is the check result normal?
- YES: Go to Step 4.
- NO: Install the power liftgatecontrol unit or the quarter trim securely.

STEP 4. Using scan tool (M.U.T.-III), check data list.

Check the signals related to the power liftgate operation.

power liftgate main switch: OFF → ON

Door-ajar switch: OFF → ON

Item No.	Item name	Normal conditions
Item 1	Main switch	OFF → ON
Item 7	Half door switch	OFF → ON

OK: Normal conditions are displayed for all the items.

Q: Is the check result normal?

All are normal.: Go to Step 5.

Normal condition is not displayed for item No. 1.: Refer to INSPECTION PROCEDURE B-1 "POWER LIFTGATE MAIN SWITCH SIGNAL IS NOT RECEIVED" .

Normal condition is not displayed for item No. 7.: Refer to INSPECTION PROCEDURE B-4 "DOOR-AJAR SWITCH SIGNAL IS NOT RECEIVED" .

STEP 5. Check of the troubles
Check whether the power liftgate works normally.

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