Check Bus 2 Line [12/2019 - 10/2022]: Procedure

1. Disconnect the cable from the negative (-) battery terminal.
2. Measure the resistance according to the value(s) in the table below.

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

   *a	Component with harness connected (Central Gateway ECU (Network Gateway ECU))

   Standard Resistance

   Tester Connection	Condition	Specified Condition
   H59-18 (CA4H) - H59-17 (CA4L)	Cable disconnected from negative (-) battery terminal	Below 70 Ω

   Result

   Result
   OK
   NG

Result: 

NG 

See step  26

Result: 

OK 

See step  2

1. Measure the resistance according to the value(s) in the table below.

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

   *a	Component with harness connected (Central Gateway ECU (Network Gateway ECU))

   Standard Resistance

   Tester Connection	Condition	Specified Condition
   H59-18 (CA4H) - H59-17 (CA4L)	Cable disconnected from negative (-) battery terminal	54 Ω or higher

   Result

   Result
   OK
   NG

Result: 

NG 

See step  19

Result: 

OK 

See step  3

1. Measure the resistance according to the value(s) in the table below.

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

   *1	DLC3	-	-
   *a	Component with harness connected (Central Gateway ECU (Network Gateway ECU))	-	-

   Standard Resistance

   Tester Connection	Condition	Specified Condition
   H59-18 (CA4H) - H56-16 (BAT)	Cable disconnected from negative (-) battery terminal	6 kΩ or higher
   H59-17 (CA4L) - H56-16 (BAT)

   Result

   Result
   OK
   NG

Result: 

NG 

See step  12

Result: 

OK 

See step  4

1. Measure the resistance according to the value(s) in the table below.

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

   *1	DLC3	-	-
   *a	Component with harness connected (Central Gateway ECU (Network Gateway ECU))	-	-

   Standard Resistance

   Tester Connection	Condition	Specified Condition
   H59-18 (CA4H) - H56-4 (CG)	Cable disconnected from negative (-) battery terminal	200 Ω or higher
   H59-17 (CA4L) - H56-4 (CG)

   Result

   Result
   OK
   NG

Result: 

OK 

REPLACE CENTRAL GATEWAY ECU (NETWORK GATEWAY ECU) 

Refer to REMOVAL [12/2019 - 11/2023]

Result: 

NG 

See step  5

1. Disconnect the H97 No. 11 global CAN junction connector.
2. Measure the resistance according to the value(s) in the table below.

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

   *1	DLC3	-	-
   *a	Front view of wire harness connector (to No. 11 Global CAN Junction Connector)	*b	to Central Gateway ECU (Network Gateway ECU)

   Standard Resistance

   Tester Connection	Condition	Specified Condition
   H97-11 (CANH) - H56-4 (CG)	Cable disconnected from negative (-) battery terminal	200 Ω or higher
   H97-22 (CANL) - H56-4 (CG)

   Result

   Result
   OK
   NG

Result: 

NG 

See step  9

Result: 

OK 

See step  6

1. Measure the resistance according to the value(s) in the table below.

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

   *1	DLC3	-	-
   *a	Front view of wire harness connector (to No. 11 Global CAN Junction Connector)	*b	to ECM

   Standard Resistance

   Tester Connection	Condition	Specified Condition
   H97-9 (CANH) - H56-4 (CG)	Cable disconnected from negative (-) battery terminal	200 Ω or higher
   H97-20 (CANL) - H56-4 (CG)

   Result

   Result
   OK
   NG

Result: 

NG 

See step  10

Result: 

OK 

See step  7

1. Check vehicle type.

   Result

   Result	Proceed to
   w/ Stop and Start System	A
   w/o Stop and Start System	B

Result: 

B 

REPLACE NO. 11 GLOBAL CAN JUNCTION CONNECTOR 

Result: 

A 

See step  8

1. Measure the resistance according to the value(s) in the table below.

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

   *1	DLC3	-	-
   *a	Front view of wire harness connector (to No. 11 Global CAN Junction Connector)	*b	to Engine Stop and Start ECU

   Standard Resistance

   Tester Connection	Condition	Specified Condition
   H97-10 (CANH) - H56-4 (CG)	Cable disconnected from negative (-) battery terminal	200 Ω or higher
   H97-21 (CANL) - H56-4 (CG)

   Result

   Result
   OK
   NG

Result: 

OK 

REPLACE NO. 11 GLOBAL CAN JUNCTION CONNECTOR 

Result: 

NG 

See step  11

1. Disconnect the H59 central gateway ECU (network gateway ECU) connector.
2. Measure the resistance according to the value(s) in the table below.

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

   *1	DLC3	-	-
   *a	Front view of wire harness connector (to No. 11 Global CAN Junction Connector)	*b	to Central Gateway ECU (Network Gateway ECU)

   Standard Resistance

   Tester Connection	Condition	Specified Condition
   H97-11 (CANH) - H56-4 (CG)	Cable disconnected from negative (-) battery terminal	200 Ω or higher
   H97-22 (CANL) - H56-4 (CG)

   Result

   Result
   OK
   NG

Result: 

OK 

REPLACE CENTRAL GATEWAY ECU (NETWORK GATEWAY ECU) 

Refer to REMOVAL [12/2019 - 11/2023]

Result: 

NG 

REPAIR OR REPLACE CAN MAIN BUS LINE OR CONNECTOR (NO. 11 GLOBAL CAN JUNCTION CONNECTOR - CENTRAL GATEWAY ECU (NETWORK GATEWAY ECU)) 

1. Disconnect the A28 ECM connector.
2. Measure the resistance according to the value(s) in the table below.

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

   *1	DLC3	-	-
   *a	Front view of wire harness connector (to No. 11 Global CAN Junction Connector)	*b	to ECM

   Standard Resistance

   Tester Connection	Condition	Specified Condition
   H97-9 (CANH) - H56-4 (CG)	Cable disconnected from negative (-) battery terminal	200 Ω or higher
   H97-20 (CANL) - H56-4 (CG)

   Result

   Result
   OK
   NG

Result: 

OK 

REPLACE ECM 

Refer to REMOVAL [12/2019 - 09/2020] , or refer to REMOVAL [09/2020 - 10/2022]

Result: 

NG 

REPAIR OR REPLACE CAN MAIN BUS LINE OR CONNECTOR (NO. 11 GLOBAL CAN JUNCTION CONNECTOR - ECM) 

1. Disconnect the H66 engine stop and start ECU connector.
2. Measure the resistance according to the value(s) in the table below.

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

   *1	DLC3	-	-
   *a	Front view of wire harness connector (to No. 11 Global CAN Junction Connector)	*b	to Engine Stop and Start ECU

   Standard Resistance

   Tester Connection	Condition	Specified Condition
   H97-10 (CANH) - H56-4 (CG)	Cable disconnected from negative (-) battery terminal	200 Ω or higher
   H97-21 (CANL) - H56-4 (CG)

   Result

   Result
   OK
   NG

Result: 

OK 

REPLACE ENGINE STOP AND START ECU 

Refer to REMOVAL [12/2019 - 10/2022]

Result: 

NG 

REPAIR OR REPLACE CAN BRANCH LINE OR CONNECTOR (NO. 11 GLOBAL CAN JUNCTION CONNECTOR - ENGINE STOP AND START ECU) 

1. Disconnect the H97 No. 11 global CAN junction connector.
2. Measure the resistance according to the value(s) in the table below.

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

   *1	DLC3	-	-
   *a	Front view of wire harness connector (to No. 11 Global CAN Junction Connector)	*b	to Central Gateway ECU (Network Gateway ECU)

   Standard Resistance

   Tester Connection	Condition	Specified Condition
   H97-11 (CANH) - H56-16 (BAT)	Cable disconnected from negative (-) battery terminal	6 kΩ or higher
   H97-22 (CANL) - H56-16 (BAT)

   Result

   Result
   OK
   NG

Result: 

NG 

See step  16

Result: 

OK 

See step  13

1. Measure the resistance according to the value(s) in the table below.

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

   *1	DLC3	-	-
   *a	Front view of wire harness connector (to No. 11 Global CAN Junction Connector)	*b	to ECM

   Standard Resistance

   Tester Connection	Condition	Specified Condition
   H97-9 (CANH) - H56-16 (BAT)	Cable disconnected from negative (-) battery terminal	6 kΩ or higher
   H97-20 (CANL) - H56-16 (BAT)

   Result

   Result
   OK
   NG

Result: 

NG 

See step  17

Result: 

OK 

See step  14

1. Check vehicle type.

   Result

   Result	Proceed to
   w/ Stop and Start System	A
   w/o Stop and Start System	B

Result: 

B 

REPLACE NO. 11 GLOBAL CAN JUNCTION CONNECTOR 

Result: 

A 

See step  15

1. Measure the resistance according to the value(s) in the table below.

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

   *1	DLC3	-	-
   *a	Front view of wire harness connector (to No. 11 Global CAN Junction Connector)	*b	to Engine Stop and Start ECU

   Standard Resistance

   Tester Connection	Condition	Specified Condition
   H97-10 (CANH) - H56-16 (BAT)	Cable disconnected from negative (-) battery terminal	6 kΩ or higher
   H97-21 (CANL) - H56-16 (BAT)

   Result

   Result
   OK
   NG

Result: 

OK 

REPLACE NO. 11 GLOBAL CAN JUNCTION CONNECTOR 

Result: 

NG 

See step  18

1. Disconnect the H59 central gateway ECU (network gateway ECU) connector.
2. Measure the resistance according to the value(s) in the table below.

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

   *1	DLC3	-	-
   *a	Front view of wire harness connector (to No. 11 Global CAN Junction Connector)	*b	to Central Gateway ECU (Network Gateway ECU)

   Standard Resistance

   Tester Connection	Condition	Specified Condition
   H97-11 (CANH) - H56-16 (BAT)	Cable disconnected from negative (-) battery terminal	6 kΩ or higher
   H97-22 (CANL) - H56-16 (BAT)

   Result

   Result
   OK
   NG

Result: 

OK 

REPLACE CENTRAL GATEWAY ECU (NETWORK GATEWAY ECU) 

Refer to REMOVAL [12/2019 - 11/2023]

Result: 

NG 

REPAIR OR REPLACE CAN MAIN BUS LINE OR CONNECTOR (NO. 11 GLOBAL CAN JUNCTION CONNECTOR - CENTRAL GATEWAY ECU (NETWORK GATEWAY ECU)) 

1. Disconnect the A28 ECM connector.
2. Measure the resistance according to the value(s) in the table below.

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

   *1	DLC3	-	-
   *a	Front view of wire harness connector (to No. 11 Global CAN Junction Connector)	*b	to ECM

   Standard Resistance

   Tester Connection	Condition	Specified Condition
   H97-9 (CANH) - H56-16 (BAT)	Cable disconnected from negative (-) battery terminal	6 kΩ or higher
   H97-20 (CANL) - H56-16 (BAT)

   Result

   Result
   OK
   NG

Result: 

OK 

REPLACE ECM 

Refer to REMOVAL [12/2019 - 09/2020] , or refer to REMOVAL [09/2020 - 10/2022]

Result: 

NG 

REPAIR OR REPLACE CAN MAIN BUS LINE OR CONNECTOR (NO. 11 GLOBAL CAN JUNCTION CONNECTOR - ECM) 

1. Disconnect the H66 engine stop and start ECU connector.
2. Measure the resistance according to the value(s) in the table below.

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

   *1	DLC3	-	-
   *a	Front view of wire harness connector (to No. 11 Global CAN Junction Connector)	*b	to Engine Stop and Start ECU

   Standard Resistance

   Tester Connection	Condition	Specified Condition
   H97-10 (CANH) - H56-16 (BAT)	Cable disconnected from negative (-) battery terminal	6 kΩ or higher
   H97-21 (CANL) - H56-16 (BAT)

   Result

   Result
   OK
   NG

Result: 

OK 

REPLACE ENGINE STOP AND START ECU 

Refer to REMOVAL [12/2019 - 10/2022]

Result: 

NG 

REPAIR OR REPLACE CAN BRANCH LINE OR CONNECTOR (NO. 11 GLOBAL CAN JUNCTION CONNECTOR - ENGINE STOP AND START ECU) 

1. Disconnect the H97 No. 11 global CAN junction connector.
2. Measure the resistance according to the value(s) in the table below.

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

   *a

   Front view of wire harness connector (to No. 11 Global CAN Junction Connector)

   *b

   to Central Gateway ECU (Network Gateway ECU)

   Standard Resistance

   Tester Connection	Condition	Specified Condition
   H97-11 (CANH) - H97-22 (CANL)	Cable disconnected from negative (-) battery terminal	108 to 132 Ω

   Result

   Result
   OK
   NG

Result: 

NG 

See step  23

Result: 

OK 

See step  20

1. Measure the resistance according to the value(s) in the table below.

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

   *a

   Front view of wire harness connector (to No. 11 Global CAN Junction Connector)

   *b

   to ECM

   Standard Resistance

   Tester Connection	Condition	Specified Condition
   H97-9 (CANH) - H97-20 (CANL)	Cable disconnected from negative (-) battery terminal	108 to 132 Ω

   Result

   Result
   OK
   NG

Result: 

NG 

See step  24

Result: 

OK 

See step  21

1. Check vehicle type.

   Result

   Result	Proceed to
   w/ Stop and Start System	A
   w/o Stop and Start System	B

Result: 

B 

REPLACE NO. 11 GLOBAL CAN JUNCTION CONNECTOR 

Result: 

A 

See step  22

1. Measure the resistance according to the value(s) in the table below.

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

   *a

   Front view of wire harness connector (to No. 11 Global CAN Junction Connector)

   *b

   to Engine Stop and Start ECU

   Standard Resistance

   Tester Connection	Condition	Specified Condition
   H97-10 (CANH) - H97-21 (CANL)	Cable disconnected from negative (-) battery terminal	200 Ω or higher

   Result

   Result
   OK
   NG

Result: 

OK 

REPLACE NO. 11 GLOBAL CAN JUNCTION CONNECTOR 

Result: 

NG 

See step  25

1. Disconnect the H59 central gateway ECU (network gateway ECU) connector.
2. Measure the resistance according to the value(s) in the table below.

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

   *a

   Front view of wire harness connector (to No. 11 Global CAN Junction Connector)

   *b

   to Central Gateway ECU (Network Gateway ECU)

   Standard Resistance

   Tester Connection	Condition	Specified Condition
   H97-11 (CANH) - H97-22 (CANL)	Cable disconnected from negative (-) battery terminal	1 MΩ or higher

   Result

   Result
   OK
   NG

Result: 

OK 

REPLACE CENTRAL GATEWAY ECU (NETWORK GATEWAY ECU) 

Refer to REMOVAL [12/2019 - 11/2023]

Result: 

NG 

REPAIR OR REPLACE CAN MAIN BUS LINES OR CONNECTOR (NO. 11 GLOBAL CAN JUNCTION CONNECTOR - CENTRAL GATEWAY ECU (NETWORK GATEWAY ECU)) 

1. Disconnect the A28 ECM connector.
2. Measure the resistance according to the value(s) in the table below.

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

   *a

   Front view of wire harness connector (to No. 11 Global CAN Junction Connector)

   *b

   to ECM

   Standard Resistance

   Tester Connection	Condition	Specified Condition
   H97-9 (CANH) - H97-20 (CANL)	Cable disconnected from negative (-) battery terminal	1 MΩ or higher

   Result

   Result
   OK
   NG

Result: 

OK 

REPLACE ECM 

Refer to REMOVAL [12/2019 - 09/2020] , or refer to REMOVAL [09/2020 - 10/2022]

Result: 

NG 

REPAIR OR REPLACE CAN MAIN BUS LINES OR CONNECTOR (NO. 11 GLOBAL CAN JUNCTION CONNECTOR - ECM) 

1. Disconnect the H66 engine stop and start ECU connector.
2. Measure the resistance according to the value(s) in the table below.

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

   *a

   Front view of wire harness connector (to No. 11 Global CAN Junction Connector)

   *b

   to Engine Stop and Start ECU

   Standard Resistance

   Tester Connection	Condition	Specified Condition
   H97-10 (CANH) - H97-21 (CANL)	Cable disconnected from negative (-) battery terminal	1 MΩ or higher

   Result

   Result
   OK
   NG

Result: 

OK 

REPLACE ENGINE STOP AND START ECU 

Refer to REMOVAL [12/2019 - 10/2022]

Result: 

NG 

REPAIR OR REPLACE CAN BRANCH LINES OR CONNECTOR (NO. 11 GLOBAL CAN JUNCTION CONNECTOR - ENGINE STOP AND START ECU) 

1. Disconnect the H97 No. 11 global CAN junction connector.
2. Measure the resistance according to the value(s) in the table below.

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

   *a

   Front view of wire harness connector (to No. 11 Global CAN Junction Connector)

   *b

   to Central Gateway ECU (Network Gateway ECU)

   Standard Resistance

   Tester Connection	Condition	Specified Condition
   H97-11 (CANH) - H97-22 (CANL)	Cable disconnected from negative (-) battery terminal	108 to 132 Ω

   Result

   Result
   OK
   NG

Result: 

NG 

See step  28

Result: 

OK 

See step  27

1. Measure the resistance according to the value(s) in the table below.

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

   *a

   Front view of wire harness connector (to No. 11 Global CAN Junction Connector)

   *b

   to ECM

   Standard Resistance

   Tester Connection	Condition	Specified Condition
   H97-9 (CANH) - H97-20 (CANL)	Cable disconnected from negative (-) battery terminal	108 to 132 Ω

   Result

   Result
   OK
   NG

Result: 

OK 

REPLACE NO. 11 GLOBAL CAN JUNCTION CONNECTOR 

Result: 

NG 

See step  29

1. Reconnect the H97 No. 11 global CAN junction connector.
2. Disconnect the H59 central gateway ECU (network gateway ECU) connector.
3. Measure the resistance according to the value(s) in the table below.

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

   *a	Front view of wire harness connector (to Central Gateway ECU (Network Gateway ECU))

   Standard Resistance

   Tester Connection	Condition	Specified Condition
   H59-18 (CA4H) - H59-17 (CA4L)	Cable disconnected from negative (-) battery terminal	108 to 132 Ω

   Result

   Result
   OK
   NG

Result: 

OK 

REPLACE CENTRAL GATEWAY ECU (NETWORK GATEWAY ECU) 

Refer to REMOVAL [12/2019 - 11/2023]

Result: 

NG 

REPAIR OR REPLACE CAN MAIN BUS LINES OR CONNECTOR (CENTRAL GATEWAY ECU (NETWORK GATEWAY ECU) - NO. 11 GLOBAL CAN JUNCTION CONNECTOR) 

1. Reconnect the H97 No. 11 global CAN junction connector.
2. Disconnect the A28 ECM connector.
3. Measure the resistance according to the value(s) in the table below.

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

   *a	Front view of wire harness connector (to ECM)

   Standard Resistance

   Tester Connection	Condition	Specified Condition
   A28-13 (CANH) - A28-26 (CANL)	Cable disconnected from negative (-) battery terminal	108 to 132 Ω

   Result

   Result
   OK
   NG

Result: 

OK 

REPLACE ECM 

Refer to REMOVAL [12/2019 - 09/2020] , or refer to REMOVAL [09/2020 - 10/2022]

Result: 

NG 

REPAIR OR REPLACE CAN MAIN BUS LINES OR CONNECTOR (ECM - NO. 11 GLOBAL CAN JUNCTION CONNECTOR)