Inspection Procedure B-2: Electric tailgate close 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 close switch and the electric tailgate control unit, the electric tailgate close switch itself or the electric tailgate control unit itself may be defective.

PROBABLE CAUSES



DIAGNOSIS PROCEDURE


STEP 1. Electric tailgate close switch inspection


Check the electric tailgate close switch (refer to ).

Q. Is the check result normal?

Go to Step 2.

Replace the electric tailgate close switch.

STEP 2. Resistance measurement at electric tailgate close switch connector (earth line terminal).


(1)Disconnect the connector, and measure at the wiring harness side.
(2)Measure the resistance between electric tailgate close switch connector (earth line terminal) and body earth.
OK: Continuity exists (2 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 close 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 GCLS line between electric tailgate control unit connector and electric tailgate close 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 close 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.