Inspection Procedure
A-7: Electric tailgate automatic operation does not work normally by the operation of keyless
operation key (for both open and close operations).
caution
Before replacing the ECU,
ensure that the input and output signal circuits are normal.
COMMENTS ON TROUBLE SYMPTOM
The keyless operation key or the electric tailgate control unit may be defective.
PROBABLE CAUSES
Malfunction of keyless operation key
Damaged electric tailgate control unit
DIAGNOSIS PROCEDURE
STEP 1. Keyless entry system operation check
Check that the door lock/unlock is performed when the keyless operation key is
operated.
Q.
Is the check result normal?
Go to Step 2.
Refer to GROUP 42B - Trouble Symptom Chart .
STEP 2. M.U.T.-III CAN bus diagnostics
Use M.U.T.-III to diagnose the CAN bus lines.
Q.
Is the CAN bus normal?
Go to Step 3.
Repair the CAN bus line. (Refer to GROUP 54C - CAN Bus Line Trouble Symptom Chart .)
STEP 3. M.U.T.-III diagnosis code
Check that ETACS-ECU sets a diagnosis code.
Q.
Is the diagnosis code set?
Refer to GROUP 54A - Diagnosis Code Chart .
Go to Step 4.
STEP 4: System retest using the normal keyless operation key
(1)Register the keyless operation key which operates the electric tailgate normally.
(2)Check whether the electric tailgate works normally.
Q.
Is the check result normal?
Replace the keyless operation key.
Go to Step 5.
STEP 5. System retest
Check whether the electric tailgate works normally.
Q.
Is the check result normal?
Intermittent malfunction (Refer to GROUP 00 - How to Use Troubleshooting/Inspection
Service Points - How to Cope with Intermittent Malfunction .)