Inspection Procedure A-12: Electric tailgate becomes as door-ajar.


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

COMMENTS ON TROUBLE SYMPTOM



PROBABLE CAUSES



  • Malfunction of the tailgate lock release handle
  • Door-ajar switch system failed
  • Neutral latch switch system failed
  • Half latch switch system failed
  • Full latch switch system malfunction
  • Tailgate sensor malfunction
  • Incorrect operation of tailgate lock release handle

DIAGNOSIS PROCEDURE


STEP 1. M.U.T.-III diagnosis code


(1)Operate the electric tailgate.
(2)Check whether a diagnosis code is set in the electric tailgate control unit.

Q. Is the check result normal?





STEP 2. M.U.T.-III data list




  • Tailgate lock release handle: OFF → ON
  • Half latch switch: OFF → ON
  • Full latch switch: OFF → ON
  • Door-ajar switch: OFF → ON
  • Neutral switch: OFF → ON
  • Tailgate sensor LH: OFF → ON
  • Tailgate sensor RH: OFF → ON
Item No.
 Item name
 Normal conditions
Item 3
 Gate handle SW
 OFF → ON
Item 5
 Half-latch SW
 OFF → ON
Item 6
 Full-latch SW
 OFF → ON
Item 7
 Half door switch
 OFF → ON
Item 8
 Neutral SW
 OFF → ON
Item 9
 Touch sensor (left)
 OFF → ON
Item 10
 Touch sensor (right)
 OFF → ON
OK: Normal conditions are displayed for all the items.

Q. Is the check result normal?













STEP 3. System retest



Q. Is the check result normal?