Inspection Procedure B-3: Tailgate lock release handle signal is not received.



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


COMMENTS ON TROUBLE SYMPTOM




PROBABLE CAUSES



  • Damaged tailgate lock release handle
  • Damaged electric tailgate control unit
  • Damaged wiring harness and connectors

DIAGNOSIS PROCEDURE


STEP 1. Tailgate lock release handle check.



Q. Is the check result normal?





STEP 2. Resistance measurement at tailgate lock release handle connector (earth line terminal).


(1)Disconnect the connector, and measure at the wiring harness side.
(2)Measure the resistance between tailgate lock release handle connector (earth line terminal) and body earth.
OK: Continuity exists (2 Ω or less).

Q. Is the check result normal?





STEP 3. Check of open circuit in earth line between tailgate lock release handle connector and body earth.


Q. Is the check result normal?





STEP 4. Check of open circuit in GOPN line between electric tailgate control unit connector and tailgate lock release handle connector.


Q. Is the check result normal?





STEP 5. System retest



Q. Is the check result normal?