INSPECTION PROCEDURE B-1: 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

PROBABLE CAUSES

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

DIAGNOSTIC PROCEDURE

STEP 1. Connector check: F-09 tailgate lock release handle connector

Q. Is the check result normal?

STEP 2. Tailgate lock release handle check

Q. Is the check result normal?

STEP 3. Resistance measurement at F-09 tailgate lock release handle connector

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

(2)Measure the resistance between the F-09 tailgate lock release handle connector terminal No. 2 and the body earth.
OK: Continuity (less than 2Ω)

Q. Is the check result normal?

STEP 4. Check of the wiring harness between the F-09 tailgate lock release handle connector terminal No. 2 and the body earth

Check the earth wires for open circuit.

Q. Is the check result normal?

STEP 5. Connector check: C-313 ETACS-ECU connector

Q. Is the check result normal?

STEP 6. Check of the wiring harness between the C-313 ETACS-ECU connector terminal No. 14 and the F-09 tailgate lock release handle connector terminal No. 1

note

Prior to the wiring harness inspection, check intermediate connector D-12, and repair if necessary.

Check the input line for open circuit.

Q. Is the check result normal?

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

Tailgate lock release handle: from OFF to ON

Item No.	Item name	Normal condition
230	Trunk/gate opener switch	from OFF to ON

OK: Normal condition is displayed.