Inspection Procedure: The tailgate lock release handle signal is not received.

caution

Before replacing the ECU, ensure that the power supply circuit, the earth circuit and the communication circuit are normal.

COMMENTS ON TROUBLE SYMPTOM

Input signal from the tailgate lock release handle is used to operate the central door locking function. If the signal is abnormal, the central door locking function will not work normally.

PROBABLE CAUSES

Malfunction of the tailgate lock release handle
Malfunction of ETACS-ECU
Damaged wiring harness and connectors

DIAGNOSIS PROCEDURE

STEP 1. Connector check: F-08 tailgate lock release handle connector

Q. Is the check result normal?

Go to Step 2.

Repair the defective connector.

STEP 2. Tailgate lock release handle check

Check that the tailgate lock release handle is normal (Refer to inspection

Q. Is the check result normal?

Go to Step 3.

Replace the tailgate lock release handle.

STEP 3. Resistance measurement at F-08 tailgate lock release handle connector

(1)Disconnect the connector, and measure at the wiring harness side.

(2)Measure the resistance between the F-08 tailgate lock release handle connector terminal No. 2 and the body earth.
OK: Continuity exists (2 or less)

Q. Is the check result normal?

Go to Step 5.

Go to Step 4.

STEP 4. Check of the wiring harness between the F-08 tailgate lock release handle connector terminal No. 2 and the body earth

note

Prior to the wiring harness inspection, check C-08 intermediate connector, and repair if necessary.

Check the earth wires for open circuit.

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

Repair the wiring harness.

STEP 5. Connector check: B-317 ETACS-ECU connector

Q. Is the check result normal?

Go to Step 6.

Repair the defective connector.

STEP 6. Check of the wiring harness between the B-317 ETACS-ECU connector terminal No. 69 and the F-08 tailgate lock release handle connector terminal No. 1

note

Prior to the wiring harness inspection, check C-07, C-08 intermediate connectors, and repair if necessary.

Check the input line for open circuit.

Q. Is the check result normal?

Go to Step 7.

Repair the wiring harness.

STEP 7. M.U.T.-III data list

Check the ETACS-ECU signals related to the tailgate.

Tailgate lock release handle: From OFF to ON

Item No.	Item name	Normal condition
52	Gate opener switch	From OFF to ON

OK: Normal condition is displayed.

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

Replace the ETACS-ECU and register the ID codes (Refer to GROUP 54A, Encrypted Code Registration Criteria Table

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