Wireless Transmitter Memory Function does not Operate [10/2023 - 11/2024]: Procedure

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

   Refer to OPERATION CHECK [10/2023 - 11/2024]

   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 [10/2023 - 11/2024]

Result: 

OK 

See step  2

1. Check that the engine starts normally when the engine switch is pressed while carrying the electrical key transmitter sub-assembly and with the brake pedal depressed.

   OK

   Engine starts normally.

   Result

   Proceed to
   OK
   NG

Result: 

NG 

GO TO SMART KEY SYSTEM (for Start Function) 

Refer to HOW TO PROCEED WITH TROUBLESHOOTING [10/2023 - ]

Result: 

OK 

See step  3

1. Check the seat position memory and restoring functions.

   Refer to OPERATION CHECK [12/2021 - ]

   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 [10/2023 - 11/2024]

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 [10/2023 - 11/2024] 

Result: 

A 

See step  4

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.

   for Type A:

   Body Electrical > Main Body > Data List 

   Tester Display	Measurement Item	Range	Normal Condition	Diagnostic Note
   FL Door Courtesy Switch Status	Front door courtesy light switch assembly LH signal	Open or Close	Open: Driver door open Close: Driver door closed	-

   Body Electrical > Main Body > Data List 

   Tester Display
   FL Door Courtesy Switch Status

   for Type B:

   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 LH 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 Techstream screen, ON or OFF is displayed accordingly.

   Result

   Proceed to
   OK
   NG

Result: 

NG 

GO TO LIGHTING SYSTEM (Door Courtesy Switch Circuit) 

Refer to Door Courtesy Switch Circuit [10/2023 - 11/2024]

Result: 

OK 

See step  5

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

   Refer to OPERATION CHECK [12/2021 - ]

   OK

   A seat position can be registered normally.

   Result

   Proceed to
   OK
   NG

Result: 

NG 

See step  8

Result: 

OK 

See step  6

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.

   for Type A:

   Body Electrical > Main Body > Data List 

   Tester Display	Measurement Item	Range	Normal Condition	Diagnostic Note
   MEM Switch No. with Key ID 1	Memory switch linked with key ID1	NONE, D MEM SW1, D MEM SW2 or D MEM SW3*	NONE: No switches linked with key ID1 D MEM SW1: M1 switch linked with key ID1 D MEM SW2: M2 switch linked with key ID1 D MEM SW3: M3 switch linked with key ID1*	-
   MEM Switch No. with Key ID 2	Memory switch linked with key ID2	NONE, D MEM SW1, D MEM SW2 or D MEM SW3*	NONE: No switches linked with key ID2 D MEM SW1: M1 switch linked with key ID2 D MEM SW2: M2 switch linked with key ID2 D MEM SW3: M3 switch linked with key ID2*	-
   MEM Switch No. with Key ID 3	Memory switch linked with key ID3	NONE, D MEM SW1, D MEM SW2 or D MEM SW3*	NONE: No switches linked with key ID3 D MEM SW1: M1 switch linked with key ID3 D MEM SW2: M2 switch linked with key ID3 D MEM SW3: M3 switch linked with key ID3*	-
   MEM Switch No. with Key ID 4	Memory switch linked with key ID4	NONE, D MEM SW1, D MEM SW2 or D MEM SW3*	NONE: No switches linked with key ID4 D MEM SW1: M1 switch linked with key ID4 D MEM SW2: M2 switch linked with key ID4 D MEM SW3: M3 switch linked with key ID4*	-
   MEM Switch No. with Key ID 5	Memory switch linked with key ID5	NONE, D MEM SW1, D MEM SW2 or D MEM SW3*	NONE: No switches linked with key ID5 D MEM SW1: M1 switch linked with key ID5 D MEM SW2: M2 switch linked with key ID5 D MEM SW3: M3 switch linked with key ID5*	-
   MEM Switch No. with Key ID 6	Memory switch linked with key ID6	NONE, D MEM SW1, D MEM SW2 or D MEM SW3*	NONE: No switches linked with key ID6 D MEM SW1: M1 switch linked with key ID6 D MEM SW2: M2 switch linked with key ID6 D MEM SW3: M3 switch linked with key ID6*	-
   MEM Switch No. with Key ID 7	Memory switch linked with key ID7	NONE, D MEM SW1, D MEM SW2 or D MEM SW3*	NONE: No switches linked with key ID7 D MEM SW1: M1 switch linked with key ID7 D MEM SW2: M2 switch linked with key ID7 D MEM SW3: M3 switch linked with key ID7*	-

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

   Body Electrical > Main Body > Data List 

   Tester Display
   MEM Switch No. with Key ID 1
   MEM Switch No. with Key ID 2
   MEM Switch No. with Key ID 3
   MEM Switch No. with Key ID 4
   MEM Switch No. with Key ID 5
   MEM Switch No. with Key ID 6
   MEM Switch No. with Key ID 7

   for Type B:

   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 this item is displayed on the Techstream, 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 [10/2023 - ]

Result: 

OK 

See step  7

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

   Refer to OPERATION CHECK [12/2021 - ]

   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 [11/2018 - ]

Result: 

NG 

GO TO OTHER DIAGNOSIS PROCEDURE (Wireless-linked Return Function does not Operate) 

Refer to Wireless-linked Return Function does not Operate [10/2023 - 11/2024] 

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

   Refer to REMOVAL [10/2023 - ]

   Result

   Proceed to
   NEXT

Result: 

NEXT 

See step  9

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

   Refer to OPERATION CHECK [12/2021 - ]

   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 [10/2023 - ]

   Result

   Proceed to
   NEXT

Result: 

NEXT 

See step  11

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

   Refer to OPERATION CHECK [12/2021 - ]

   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 [10/2023 - ]