Inspection Procedure 9: The tailgate lock actuator <vehicles without electric tailgate> or tailgate latch <vehicles with electric tailgate> signal is not received.


caution
  • Before replacing the ECU, ensure that the power supply circuit, the earth circuit and the communication circuit are normal.
  • When the ETACS-ECU of vehicles without KOS is replaced, the encrypted code of the ignition key needs to be registered to the ETACS-ECU. (If the encrypted code is not registered, the engine cannot be started. Register the encrypted code as described in Immobilizer System - How to Register Key ID .)

COMMENTS ON TROUBLE SYMPTOM


If there is an error to the tailgate lock actuator <vehicles without electric tailgate> or tailgate latch <vehicles with electric tailgate> input signal, the tailgate lock actuator <vehicles without electric tailgate> or tailgate latch <vehicles with electric tailgate> signal is no longer output to the communication line.

PROBABLE CAUSES



DIAGNOSIS PROCEDURE


STEP 1. Check the installation condition.


Check that the tailgate lock actuator <vehicles without electric tailgate> or tailgate latch <vehicles with electric tailgate> is installed to the body correctly.

Q. Is the check result normal?

Go to Step 2.

Correct the installation condition.

STEP 2. Tailgate lock actuator <vehicles without electric tailgate> or tailgate latch <vehicles with electric tailgate> check


Refer to GROUP 42A - Tailgate <vehicles without Electric Tailgate> or <vehicles with Electric Tailgate>.

Q. Is the check result normal?

Go to Step 3.

Replace the tailgate lock actuator <vehicles without electric tailgate> or tailgate latch <vehicles with electric tailgate>.

STEP 3. Check of short to power supply, short to earth, and open circuit in TRID line between ETACS-ECU connector and tailgate lock actuator <vehicles without electric tailgate> or tailgate latch <vehicles with electric tailgate> connector


Q. Is the check result normal?

Go to Step 4.

Repair the connector(s) or wiring harness.

STEP 4. M.U.T.-III data list



Item No.
 Item name
 Normal condition
Item 260
 Gate ajar switch
 Open
OK: Normal condition is displayed.

Q. Is the check result normal?

The trouble can be an intermittent malfunction (Refer to GROUP 00 - How to use Troubleshooting/inspection Service Points - How to Cope with Intermittent Malfunction ).

Replace the ETACS-ECU.