Wireless Transmitter Memory Function does not Operate [02/2024 - ]: Procedure

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

   Refer to OPERATION CHECK [02/2024 - ]

   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 [02/2024 - ] 

Result: 

OK 

See step  2

1. Check that the engine starts normally when the ignition 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 [02/2024 - ] 

Result: 

OK 

See step  3

1. Check the seat position memory and restoring functions.

   Refer to OPERATION CHECK [02/2024 - ]

   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 [02/2024 - ]  

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 [02/2024 - ]  

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 Switch Status	Front door courtesy light switch assembly (LH) signal	Close or Open	Close: Front door LH closed Open: Front door LH open	-

   Body Electrical > Main Body > Data List 

   Tester Display
   FL Door Courtesy Switch Status

   OK

   On the GTS screen, Close or Open is displayed accordingly.

   Result

   Proceed to
   OK
   NG

Result: 

NG 

GO TO LIGHTING SYSTEM (Door Courtesy Switch Circuit). Refer to  Door Courtesy Switch Circuit [02/2024 - ] 

Result: 

OK 

See step  5

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

   Refer to OPERATION CHECK [02/2024 - ]

   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 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 GTS, 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

   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 [02/2024 - ] 

Result: 

OK 

See step  7

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

   Refer to OPERATION CHECK [02/2024 - ]

   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 [02/2024 - ] 

Result: 

NG 

GO TO OTHER DIAGNOSIS PROCEDURE (Wireless-linked Return Function does not Operate). Refer to  Wireless-linked Return Function does not Operate [02/2024 - ]  

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

   Refer to REMOVAL [02/2024 - ]

   Result

   Proceed to
   NEXT

Result: 

NEXT 

See step  9

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

   Refer to OPERATION CHECK [02/2024 - ]

   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 LH with a new or known good one.

   Refer to REMOVAL [02/2024 - ]

   Result

   Proceed to
   NEXT

Result: 

NEXT 

See step  11

1. Initialize the position control ECU assembly LH.

   Refer to REGISTRATION [02/2024 - ]

   Result

   Proceed to
   NEXT

Result: 

NEXT 

See step  12

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

   Refer to OPERATION CHECK [02/2024 - ]

   OK

   A seat position can be registered normally.

   Result

   Proceed to
   OK
   NG

Result: 

OK 

END (POSITION CONTROL ECU ASSEMBLY LH WAS DEFECTIVE) 

Result: 

NG 

REPLACE CERTIFICATION ECU (SMART KEY ECU ASSEMBLY)