Wireless Transmitter Memory Function does not Operate [12/2019 - 11/2023]: Procedure

1. Check the manual lock/unlock function by using the door control switch (multiplex network master switch assembly).

   Refer to OPERATION CHECK [12/2019 - 11/2023]

   OK

   Manual lock/unlock function operates normally.

   Result

   Proceed to
   OK
   NG

Result: 

NG 

GO TO POWER DOOR LOCK CONTROL SYSTEM. Refer to  HOW TO PROCEED WITH TROUBLESHOOTING [12/2019 - 11/2023] 

Result: 

OK 

See step  2

1. Check that the hybrid control system*1 or engine starts*2 normally when the ignition switch is pressed while carrying the electrical key transmitter sub-assembly and with the brake pedal depressed.

   OK

   Hybrid control system*1 or engine*2 starts normally.

   1. *1: for HV Model
   2. *2: for Gasoline Model

   Result

   Proceed to
   OK
   NG

Result: 

NG 

GO TO SMART KEY SYSTEM (for Start Function) 

for HV Model: Refer to HOW TO PROCEED WITH TROUBLESHOOTING [12/2019 - 10/2021] , or refer to HOW TO PROCEED WITH TROUBLESHOOTING [10/2021 - 11/2023]

for Gasoline Model: Refer to HOW TO PROCEED WITH TROUBLESHOOTING [12/2019 - 10/2021] , or refer to HOW TO PROCEED WITH TROUBLESHOOTING [10/2021 - 11/2023]

Result: 

OK 

See step  3

1. Check the seat position memory and restoring functions.

   Refer to OPERATION CHECK [12/2019 - ]

   Result

   Result	Proceed to
   OK	A
   NG (Seat position memory function does not operate normally)	B
   NG (Seat position restoring function does not operate normally)	C

Result: 

B 

GO TO OTHER DIAGNOSIS PROCEDURE (Power Seat Position is not Memorized). Refer to  Power Seat Position is not Memorized [12/2019 - 11/2023]  

Result: 

C 

GO TO OTHER DIAGNOSIS PROCEDURE (Power Seat does not Return to Memorized Position). Refer to  Power Seat does not Return to Memorized Position [12/2019 - 10/2022]  , or refer to  Power Seat does not Return to Memorized Position [10/2022 - 11/2023]  

Result: 

A 

See step  4

1. Read the Data List according to the display on the GTS.

   Body Electrical > Main Body > Data List 

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

   Body Electrical > Main Body > Data List 

   Tester Display
   FL Door Courtesy SW

   OK

   On the GTS screen, ON or OFF is displayed accordingly.

   Result

   Proceed to
   OK
   NG

Result: 

NG 

GO TO LIGHTING SYSTEM (Door Courtesy Switch Circuit). Refer to  Front Door Courtesy Switch Circuit [12/2019 - 11/2023] 

Result: 

OK 

See step  5

1. Check the memory registration of the memory call function.

   Refer to OPERATION CHECK [12/2019 - ]

   OK

   A seat position can be registered normally.

   Result

   Proceed to
   OK
   NG

Result: 

NG 

See step  8

Result: 

OK 

See step  6

1. Read the Data List according to the display on the GTS.

   Body Electrical > Main Body > Data List 

   Tester Display	Measurement Item	Range	Normal Condition	Diagnostic Note
   Mem SW No. w/KeyID1	Memory switch linked with key ID1	NONE, MEM SW1, MEM SW2 or MEM SW3	NONE: No switches linked with key ID1 MEM SW1: M1 switch linked with key ID1 MEM SW2: M2 switch linked with key ID1 MEM SW3: M3 switch linked with key ID1*	-
   Mem SW No. w/KeyID2	Memory switch linked with key ID2	NONE, MEM SW1, MEM SW2 or MEM SW3	NONE: No switches linked with key ID2 MEM SW1: M1 switch linked with key ID2 MEM SW2: M2 switch linked with key ID2 MEM SW3: M3 switch linked with key ID2*	-
   Mem SW No. w/KeyID3	Memory switch linked with key ID3	NONE, MEM SW1, MEM SW2 or MEM SW3	NONE: No switches linked with key ID3 MEM SW1: M1 switch linked with key ID3 MEM SW2: M2 switch linked with key ID3 MEM SW3: M3 switch linked with key ID3*	-
   Mem SW No. w/KeyID4	Memory switch linked with key ID4	NONE, MEM SW1, MEM SW2 or MEM SW3	NONE: No switches linked with key ID4 MEM SW1: M1 switch linked with key ID4 MEM SW2: M2 switch linked with key ID4 MEM SW3: M3 switch linked with key ID4*	-
   Mem SW No. w/KeyID5	Memory switch linked with key ID5	NONE, MEM SW1, MEM SW2 or MEM SW3	NONE: No switches linked with key ID5 MEM SW1: M1 switch linked with key ID5 MEM SW2: M2 switch linked with key ID5 MEM SW3: M3 switch linked with key ID5*	-
   Mem SW No. w/KeyID6	Memory switch linked with key ID6	NONE, MEM SW1, MEM SW2 or MEM SW3	NONE: No switches linked with key ID6 MEM SW1: M1 switch linked with key ID6 MEM SW2: M2 switch linked with key ID6 MEM SW3: M3 switch linked with key ID6*	-
   Mem SW No. w/KeyID7	Memory switch linked with key ID7	NONE, MEM SW1, MEM SW2 or MEM SW3	NONE: No switches linked with key ID7 MEM SW1: M1 switch linked with key ID7 MEM SW2: M2 switch linked with key ID7 MEM SW3: M3 switch linked with key ID7*	-

   1. *: Although the item is displayed on the GTS, it is not applicable to this vehicle.

   Body Electrical > Main Body > Data List 

   Tester Display
   Mem SW No. w/KeyID1
   Mem SW No. w/KeyID2
   Mem SW No. w/KeyID3
   Mem SW No. w/KeyID4
   Mem SW No. w/KeyID5
   Mem SW No. w/KeyID6
   Mem SW No. w/KeyID7

   OK

   A seat position memory switch is linked to the electrical key transmitter sub-assembly.

   Result

   Proceed to
   OK
   NG

Result: 

NG 

REPLACE MAIN BODY ECU (MULTIPLEX NETWORK BODY ECU). Refer to  REMOVAL [12/2019 - 10/2022]  , or refer to  REMOVAL [10/2022 - 11/2023] 

Result: 

OK 

See step  7

1. Check the memory registration and automatic memory call function of the memory call function.

   Refer to OPERATION CHECK [12/2019 - ]

   OK

   A seat position can be registered and the automatic memory call function operates normally.

   Result

   Proceed to
   OK
   NG

Result: 

OK 

USE SIMULATION METHOD TO CHECK. Refer to  HOW TO PROCEED WITH TROUBLESHOOTING [12/2019 - ] 

Result: 

NG 

GO TO OTHER DIAGNOSIS PROCEDURE (Wireless-linked Return Function does not Operate). Refer to  Wireless-linked Return Function does not Operate [12/2019 - 11/2023]  

1. Replace the main body ECU (multiplex network body ECU) with a new or known good one.

   Refer to REMOVAL [12/2019 - 10/2022] , or refer to REMOVAL [10/2022 - 11/2023]

   Result

   Proceed to
   NEXT

Result: 

NEXT 

See step  9

1. Check the memory registration of the memory call function.

   Refer to OPERATION CHECK [12/2019 - ]

   OK

   A seat position can be registered normally.

   Result

   Proceed to
   OK
   NG

Result: 

OK 

END (MAIN BODY ECU (MULTIPLEX NETWORK BODY ECU) WAS DEFECTIVE) 

Result: 

NG 

See step  10

1. Replace the position control ECU assembly with a new or known good one.

   Refer to REMOVAL [12/2019 - 10/2022] , or refer to REMOVAL [10/2022 - 11/2023]

   Result

   Proceed to
   NEXT

Result: 

NEXT 

See step  11

1. Check the memory registration of the memory call function.

   Refer to OPERATION CHECK [12/2019 - ]

   OK

   A seat position can be registered normally.

   Result

   Proceed to
   OK
   NG

Result: 

OK 

END (POSITION CONTROL ECU ASSEMBLY WAS DEFECTIVE) 

Result: 

NG 

REPLACE CERTIFICATION ECU (SMART KEY ECU ASSEMBLY). Refer to  REMOVAL [12/2019 - 11/2023]