Wireless-linked Return Function does not Operate [11/2023 - ]: Procedure

1. Check the operation of the power seat.

   Refer to OPERATION CHECK [12/2019 - ]

2. Check the seat position memory function.

   Refer to OPERATION CHECK [12/2019 - ]

3. Check the seat position restoration function.

   Refer to OPERATION CHECK [12/2019 - ]

4. Check the operation of memory registration of the memory call function.

   Refer to OPERATION CHECK [12/2019 - ]

   Result

   Result	Proceed to
   OK	A
   NG (Power seat operation)	B
   NG (Seat position memory function)	C
   NG (Seat position restoration function)	D
   NG (Memory registration)	E

Result: 

B 

GO TO PROBLEM SYMPTOMS TABLE 

Refer to PROBLEM SYMPTOMS TABLE [12/2019 - ]

Result: 

C 

GO TO OTHER DIAGNOSIS PROCEDURE (Power Seat Position is not Memorized) 

Refer to Power Seat Position is not Memorized [11/2023 - ] 

Result: 

D 

GO TO OTHER DIAGNOSIS PROCEDURE (Power Seat does not Return to Memorized Position) 

Refer to Power Seat does not Return to Memorized Position [11/2023 - ] 

Result: 

E 

GO TO OTHER DIAGNOSIS PROCEDURE (Wireless Transmitter Memory Function does not Operate) 

Refer to Wireless Transmitter Memory Function does not Operate [11/2023 - ] 

Result: 

A 

See step  2

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

   Refer to OPERATION CHECK [12/2019 - ]

   Result

   Result	Proceed to
   Memory call function linked with the wireless unlock function does not operate.	A
   Memory call function linked with the entry unlock function does not operate.	B
   Memory call function linked with the wireless unlock function and entry unlock function both do not operate.	C

Result: 

B 

See step  9

Result: 

C 

See step  15

Result: 

A 

See step  3

1. Check the wireless unlock function of the wireless door lock control system.

   Refer to OPERATION CHECK [11/2023 - ]

   OK

   Wireless unlock function is normal.

   Result

   Proceed to
   OK
   NG

Result: 

NG 

GO TO WIRELESS DOOR LOCK CONTROL SYSTEM 

Refer to HOW TO PROCEED WITH TROUBLESHOOTING [11/2023 - ]

Result: 

OK 

See step  4

1. Check the operation of the outer mirrors using the memory call function.

   Refer to OPERATION CHECK [11/2023 - ]

   Result

   Result	Proceed to
   Outer mirrors operate normally	A
   Outer mirrors do not operate normally	B

Result: 

B 

See step  7

Result: 

A 

See step  5

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

   Refer to REMOVAL [11/2023 - ]

   Result

   Proceed to
   NEXT

Result: 

NEXT 

See step  6

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

   Refer to OPERATION CHECK [12/2019 - ]

   OK

   Memory call function linked with the wireless unlock function operates normally.

   Result

   Proceed to
   OK
   NG

Result: 

OK 

END (POSITION CONTROL ECU ASSEMBLY WAS DEFECTIVE) 

Result: 

NG 

REPLACE MAIN BODY ECU (MULTIPLEX NETWORK BODY ECU) 

Refer to REMOVAL [11/2023 - ]

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

   Refer to REMOVAL [11/2023 - ]

   Result

   Proceed to
   NEXT

Result: 

NEXT 

See step  8

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

   Refer to OPERATION CHECK [12/2019 - ]

   OK

   Memory call function linked with the wireless unlock function operates normally.

   Result

   Proceed to
   OK
   NG

Result: 

OK 

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

Result: 

NG 

REPLACE CERTIFICATION ECU (SMART KEY ECU ASSEMBLY) 

Refer to REMOVAL [11/2023 - ]

1. Check the entry unlock function of the smart key system (for entry function).

   Refer to OPERATION CHECK [11/2023 - ]

   OK

   Entry unlock function is normal.

   Result

   Proceed to
   OK
   NG

Result: 

NG 

GO TO SMART KEY SYSTEM (for Entry Function) 

Refer to HOW TO PROCEED WITH TROUBLESHOOTING [11/2023 - ]

Result: 

OK 

See step  10

1. Check the operation of the outer mirrors using the memory call function.

   Refer to OPERATION CHECK [11/2023 - ]

   Result

   Result	Proceed to
   Outer mirrors operate normally	A
   Outer mirrors do not operate normally	B

Result: 

B 

See step  13

Result: 

A 

See step  11

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

   Refer to REMOVAL [11/2023 - ]

   Result

   Proceed to
   NEXT

Result: 

NEXT 

See step  12

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

   Refer to OPERATION CHECK [12/2019 - ]

   OK

   Memory call function linked with the entry unlock function operates normally.

   Result

   Proceed to
   OK
   NG

Result: 

OK 

END (POSITION CONTROL ECU ASSEMBLY WAS DEFECTIVE) 

Result: 

NG 

REPLACE MAIN BODY ECU (MULTIPLEX NETWORK BODY ECU) 

Refer to REMOVAL [11/2023 - ]

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

   Refer to REMOVAL [11/2023 - ]

   Result

   Proceed to
   NEXT

Result: 

NEXT 

See step  14

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

   Refer to OPERATION CHECK [12/2019 - ]

   OK

   Memory call function linked with the entry unlock function operates normally.

   Result

   Proceed to
   OK
   NG

Result: 

OK 

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

Result: 

NG 

REPLACE CERTIFICATION ECU (SMART KEY ECU ASSEMBLY) 

Refer to REMOVAL [11/2023 - ]

1. Check the operation of the outer mirrors using the memory call function.

   Refer to OPERATION CHECK [11/2023 - ]

   Result

   Result	Proceed to
   Outer mirrors operate normally	A
   Outer mirrors do not operate normally	B

Result: 

B 

See step  18

Result: 

A 

See step  16

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

   Refer to REMOVAL [11/2023 - ]

   Result

   Proceed to
   NEXT

Result: 

NEXT 

See step  17

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

   Refer to OPERATION CHECK [12/2019 - ]

   OK

   Memory call function linked with the wireless unlock and entry unlock function operate normally.

   Result

   Proceed to
   OK
   NG

Result: 

OK 

END (POSITION CONTROL ECU ASSEMBLY WAS DEFECTIVE) 

Result: 

NG 

REPLACE MAIN BODY ECU (MULTIPLEX NETWORK BODY ECU) 

Refer to REMOVAL [11/2023 - ]

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. *: Not applicable

   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

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

   Body Electrical > Driver Seat > Data List 

   Tester Display	Measurement Item	Range	Normal Condition	Diagnostic Note
   Seat Memory No1	Seat position memorized with M1 switch	Mem or Not Mem	Mem: Memorized Not Mem: Not memorized	-
   Seat Memory No2	Seat position memorized with M2 switch	Mem or Not Mem	Mem: Memorized Not Mem: Not memorized	-

   Body Electrical > Driver Seat > Data List 

   Tester Display
   Seat Memory No1
   Seat Memory No2

   OK

   A seat position has been memorized for the seat position memory switch linked to the electrical key transmitter sub-assembly. (For example, the value of "MEM Switch No. with Key ID1" is D MEM SW1 and the value of "Seat Memory No1" is Mem.)

   Result

   Proceed to
   OK
   NG

Result: 

NG 

PERFORM MEMORY CALL REGISTRATION 

Refer to OPERATION CHECK [12/2019 - ]

Result: 

OK 

See step  19

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, 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 [11/2023 - ]

Result: 

OK 

See step  20

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

   Refer to REMOVAL [11/2023 - ]

   Result

   Proceed to
   NEXT

Result: 

NEXT 

See step  21

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

   Refer to OPERATION CHECK [12/2019 - ]

   OK

   Memory call functions linked with the wireless unlock function and entry unlock function operate normally.

   Result

   Proceed to
   OK
   NG

Result: 

OK 

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

Result: 

NG 

REPLACE CERTIFICATION ECU (SMART KEY ECU ASSEMBLY) 

Refer to REMOVAL [11/2023 - ]