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




PROBABLE CAUSES



  • Damaged electric tailgate close switch
  • Damaged electric tailgate control unit
  • Damaged wiring harness and connectors

DIAGNOSIS PROCEDURE


STEP 1. Electric tailgate close switch inspection



Q. Is the check result normal?





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?





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


Q. Is the check result normal?





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?





STEP 5. System retest



Q. Is the check result normal?