Inspection Procedure B-8: Electric tailgate switch signal is not received.


caution Before replacing the ECU, ensure that the input and output signal circuits are normal.

COMMENTS ON TROUBLE SYMPTOM


The wiring harness or its connector(s) between the electric tailgate switch and the electric tailgate control unit, the electric tailgate switch itself or the electric tailgate control unit itself may have a problem.

PROBABLE CAUSES



DIAGNOSIS PROCEDURE


STEP 1. Electric tailgate switch check


Check the electric tailgate switch (refer to ).

Q. Is the check result normal?

Go to Step 2.

Replace the electric tailgate switch.

STEP 2. Resistance measurement at electric tailgate switch connector (OPSW terminal).


(1)Disconnect the connector, and measure at the wiring harness side.
(2)Measure the resistance between electric tailgate switch connector and body earth.
OK: Continuity exists (10 Ω or less)

Q. Is the check result normal?

Go to Step 4.

Go to Step 3.

STEP 3. Check of open circuit in earth line between electric tailgate switch connector and body earth.


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 connector(s) or wiring harness.

STEP 4. Check of open circuit in OPSW line between electric tailgate control unit connector and electric tailgate switch connector.


Q. Is the check result normal?

Go to Step 5.

Repair the connector(s) or wiring harness.

STEP 5. System retest


Check whether the electric tailgate switch signal is received 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 .)

Replace the electric tailgate control unit.