Driver Seat Easy Access Buckle Function does not Operate [12/2017 - 10/2023]: Procedure

1. Operate the power seat switch and check that the head rest and pneumatic support function operate normally.

   Refer to OPERATION CHECK [12/2017 - 09/2019] , or refer to OPERATION CHECK [09/2019 - 10/2020] , or refer to OPERATION CHECK [10/2020 - 10/2022] , or refer to OPERATION CHECK [10/2022 - 10/2023]

   OK

   The head rest and pneumatic support function operate normally.

   Result

   Proceed to
   OK
   NG

Result: 

NG 

GO TO FRONT POWER SEAT CONTROL SYSTEM. Refer to  HOW TO PROCEED WITH TROUBLESHOOTING [12/2017 - 10/2023] 

Result: 

OK 

See step  2

1. Connect the Techstream to the DLC3.
2. Turn the engine switch on (IG).
3. Turn the Techstream on.
4. Enter the following menus: Body Electrical / Main Body / Data List.
5. Read the Data List according to the display on the Techstream.

   Body Electrical > Main Body > Data List 

   Tester Display	Measurement Item	Range	Normal Condition	Diagnostic Note
   FL Door Courtesy SW	Front door courtesy light switch LH signal	OFF or ON	OFF: Front door LH closed ON: Front door LH open	-

   Body Electrical > Main Body > Data List 

   Tester Display
   FL Door Courtesy SW

   OK

   On the Techstream screen, ON or OFF is displayed for each item according to the table above.

   Result

   Proceed to
   OK
   NG

Result: 

NG 

GO TO LIGHTING SYSTEM. Refer to  Door Courtesy Switch Circuit [12/2017 - 10/2023] 

Result: 

OK 

See step  3

1. Remove the front seat inner belt assembly LH (buckle motor, buckle switch).

   Refer to REMOVAL [12/2017 - 09/2018] , or refer to REMOVAL [09/2018 - 10/2020] , or refer to REMOVAL [10/2020 - 10/2022] , or refer to REMOVAL [10/2022 - 10/2023]

2. Inspect the front seat inner belt assembly LH (buckle motor, buckle switch).

   Refer to INSPECTION [12/2017 - ]

   Result

   Proceed to
   OK
   NG

Result: 

OK 

REPLACE POSITION CONTROL ECU ASSEMBLY. Refer to  REMOVAL [12/2017 - 09/2018]  , or refer to  REMOVAL [09/2018 - 10/2020]  , or refer to  REMOVAL [10/2020 - 10/2022]  , or refer to  REMOVAL [10/2022 - 10/2023] 

Result: 

NG 

REPLACE FRONT SEAT INNER BELT ASSEMBLY LH. Refer to  REMOVAL [12/2017 - 09/2018]  , or refer to  REMOVAL [09/2018 - 10/2020]  , or refer to  REMOVAL [10/2020 - 10/2022]  , or refer to  REMOVAL [10/2022 - 10/2023]