Power Seat Power Easy Access System Function does not Operate [04/2020 - ]: Procedure

1. Check that each function of the power seat operates normally by using the front power seat switch LH.

   Refer to OPERATION CHECK [04/2020 - ]

   Result

   Result	Proceed to
   Power seat functions operate normally	A
   All power seat functions do not operate	B
   One or more power seat motors do not operate	C

Result: 

B 

GO TO OTHER FLOWCHART (Front Power Seat does not Operate with Front Power Seat Switch). Refer to  Front Power Seat does not Operate with Front Power Seat Switch [04/2020 - ] 

Result: 

C 

GO TO OTHER FLOWCHART (One or more Power Seat Motors do not Operate). Refer to  One or more Power Seat Motors do not Operate [04/2020 - ]  

Result: 

A 

See step  2

1. Check the seat belt tension reducer system.

   OK

   Seat belt tension reducer system is normal.

   Result

   Proceed to
   OK
   NG

Result: 

NG 

GO TO SEAT BELT TENSION REDUCER SYSTEM. Refer to  PROBLEM SYMPTOMS TABLE [01/2017 - ] 

Result: 

OK 

See step  3

1. Temporarily replace the position control ECU assembly LH with a new or known good one.

   Refer to REMOVAL [01/2017 - 05/2023] , or refer to REMOVAL [05/2023 - ]

   Result

   Proceed to
   NEXT

Result: 

NEXT 

See step  4

1. Check the power seat power easy access system.

   Refer to OPERATION CHECK [04/2020 - ]

   OK

   Power seat power easy access system is normal.

   Result

   Proceed to
   OK
   NG

Result: 

OK 

END (POSITION CONTROL ECU ASSEMBLY LH WAS DEFECTIVE) 

Result: 

NG 

REPLACE MAIN BODY ECU (MULTIPLEX NETWORK BODY ECU). Refer to  REMOVAL [01/2017 - 05/2023]  , or refer to  REMOVAL [05/2023 - ]