Open in Bus 4 Main Bus Line [12/2017 - 08/2019]: Procedure

1. Disconnect the cable from the negative (-) battery terminal.
2. Disconnect the J75 network gateway ECU connector.

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

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

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

   Standard Resistance

   Tester Connection	Condition	Specified Condition
   J75-22 (CA2H) - J75-7 (CA2L)	Cable disconnected from negative (-) battery terminal	108 to 132 Ω

   Result

   Result
   OK
   NG

Result: 

OK 

REPLACE NETWORK GATEWAY ECU. Refer to  REMOVAL [08/2016 - 08/2019] 

Result: 

NG 

See step  2

1. Reconnect the J75 network gateway ECU connector.
2. Disconnect the J20 airbag sensor assembly connector.

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

   *a	Front view of wire harness connector (to Airbag Sensor Assembly)

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

   Standard Resistance

   Tester Connection	Condition	Specified Condition
   J20-13 (CANH) - J20-22 (CANL)	Cable disconnected from negative (-) battery terminal	108 to 132 Ω

   Result

   Result	Proceed to
   OK	A
   NG (w/o Rear No. 2 Seat)	B
   NG (w/ Rear No. 2 Seat)	C

Result: 

A 

REPLACE AIRBAG SENSOR ASSEMBLY. Refer to  REMOVAL [08/2016 - 08/2019] 

Result: 

C 

See step  8

Result: 

B 

See step  3

1. Reconnect the J20 airbag sensor assembly connector.
2. Disconnect the R40 No. 9 CAN junction connector.

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

   *a	Front view of wire harness connector (to No. 9 CAN Junction Connector)
   *b	to No. 12 CAN Junction Connector
   *c	to No. 8 CAN Junction Connector

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

   Standard Resistance

   Tester Connection	Condition	Specified Condition	Connected to
   R40-9 (CANH) - R40-20 (CANL)	Cable disconnected from negative (-) battery terminal	108 to 132 Ω	No. 12 CAN junction connector
   R40-11 (CANH) - R40-22 (CANL)	Cable disconnected from negative (-) battery terminal	108 to 132 Ω	No. 8 CAN junction connector

   Result

   Result	Proceed to
   OK	A
   NG (No. 8 CAN junction connector main lines)	B
   NG (No. 12 CAN junction connector main lines)	C

Result: 

A 

REPLACE NO. 9 CAN JUNCTION CONNECTOR 

Result: 

C 

See step  6

Result: 

B 

See step  4

1. Reconnect the R40 No. 9 CAN junction connector.
2. Disconnect the A86 No. 1 CAN junction connector.

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

   *a	Front view of wire harness connector (to No. 1 CAN Junction Connector)
   *b	to No. 8 CAN Junction Connector
   *c	to Network Gateway ECU

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

   Standard Resistance

   Tester Connection	Condition	Specified Condition	Connected to
   A86-8 (CANH) - A86-19 (CANL)	Cable disconnected from negative (-) battery terminal	108 to 132 Ω	No. 8 CAN junction connector
   A86-9 (CANH) - A86-20 (CANL)	Cable disconnected from negative (-) battery terminal	108 to 132 Ω	Network gateway ECU

   Result

   Result	Proceed to
   OK	A
   NG (Network gateway ECU main lines)	B
   NG (No. 8 CAN junction connector main lines)	C

Result: 

A 

REPLACE NO. 1 CAN JUNCTION CONNECTOR 

Result: 

B 

REPAIR OR REPLACE CAN MAIN BUS LINES OR CONNECTOR (NETWORK GATEWAY ECU - NO. 1 CAN JUNCTION CONNECTOR) 

Result: 

C 

See step  5

1. Reconnect the A86 No. 1 CAN junction connector.
2. Disconnect the R37 No. 8 CAN junction connector.

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

   *a	Front view of wire harness connector (to No. 8 CAN Junction Connector)
   *b	to No. 9 CAN Junction Connector
   *c	to No. 1 CAN Junction Connector

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

   Standard Resistance

   Tester Connection	Condition	Specified Condition	Connected to
   R37-1 (CANH) - R37-12 (CANL)	Cable disconnected from negative (-) battery terminal	108 to 132 Ω	No. 9 CAN junction connector
   R37-2 (CANH) - R37-13 (CANL)	Cable disconnected from negative (-) battery terminal	108 to 132 Ω	No. 1 CAN junction connector

   Result

   Result	Proceed to
   OK	A
   NG (No. 1 CAN junction connector main lines)	B
   NG (No. 9 CAN junction connector main lines)	C

Result: 

A 

REPLACE NO. 8 CAN JUNCTION CONNECTOR 

Result: 

B 

REPAIR OR REPLACE CAN MAIN BUS LINES OR CONNECTOR (NO. 1 CAN JUNCTION CONNECTOR - NO. 8 CAN JUNCTION CONNECTOR) 

Result: 

C 

REPAIR OR REPLACE CAN MAIN BUS LINES OR CONNECTOR (NO. 8 CAN JUNCTION CONNECTOR - NO. 9 CAN JUNCTION CONNECTOR) 

1. Reconnect the R40 No. 9 CAN junction connector.
2. Disconnect the S63 No. 12 CAN junction connector.

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

   *a	Front view of wire harness connector (to No. 12 CAN Junction Connector)
   *b	to No. 7 CAN Junction Connector
   *c	to No. 9 CAN Junction Connector

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

   Standard Resistance

   Tester Connection	Condition	Specified Condition	Connected to
   S63-8 (CANH) - S63-19 (CANL)	Cable disconnected from negative (-) battery terminal	108 to 132 Ω	No. 7 CAN junction connector
   S63-9 (CANH) - S63-20 (CANL)	Cable disconnected from negative (-) battery terminal	108 to 132 Ω	No. 9 CAN junction connector

   Result

   Result	Proceed to
   OK	A
   NG (No. 7 CAN junction connector main lines)	B
   NG (No. 9 CAN junction connector main lines)	C

Result: 

A 

REPLACE NO. 12 CAN JUNCTION CONNECTOR 

Result: 

C 

REPAIR OR REPLACE CAN MAIN BUS LINES OR CONNECTOR (NO. 9 CAN JUNCTION CONNECTOR - NO. 12 CAN JUNCTION CONNECTOR) 

Result: 

B 

See step  7

1. Reconnect the S63 No. 12 CAN junction connector.
2. Disconnect the J99 No. 7 CAN junction connector.

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

   *a	Front view of wire harness connector (to No. 7 CAN Junction Connector)
   *b	to Airbag Sensor Assembly
   *c	to No. 12 CAN Junction Connector

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

   Standard Resistance

   Tester Connection	Condition	Specified Condition	Connected to
   J99-1 (CANH) - J99-12 (CANL)	Cable disconnected from negative (-) battery terminal	108 to 132 Ω	Airbag sensor assembly
   J99-6 (CANH) - J99-17 (CANL)	Cable disconnected from negative (-) battery terminal	108 to 132 Ω	No. 12 CAN junction connector

   Result

   Result	Proceed to
   OK	A
   NG (Airbag sensor assembly main lines)	B
   NG (No. 12 CAN junction connector main lines)	C

Result: 

A 

REPLACE NO. 7 CAN JUNCTION CONNECTOR 

Result: 

B 

REPAIR OR REPLACE CAN MAIN BUS LINES OR CONNECTOR (AIRBAG SENSOR ASSEMBLY - NO. 7 CAN JUNCTION CONNECTOR) 

Result: 

C 

REPAIR OR REPLACE CAN MAIN BUS LINES OR CONNECTOR (NO. 7 CAN JUNCTION CONNECTOR - NO. 12 CAN JUNCTION CONNECTOR) 

1. Reconnect the J20 airbag sensor assembly connector.
2. Disconnect the R56 No. 9 CAN junction connector.

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

   *a	Front view of wire harness connector (to No. 9 CAN Junction Connector)
   *b	to No. 12 CAN Junction Connector
   *c	to No. 8 CAN Junction Connector

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

   Standard Resistance

   Tester Connection	Condition	Specified Condition	Connected to
   R56-9 (CANH) - R56-20 (CANL)	Cable disconnected from negative (-) battery terminal	108 to 132 Ω	No. 12 CAN junction connector
   R56-11 (CANH) - R56-22 (CANL)	Cable disconnected from negative (-) battery terminal	108 to 132 Ω	No. 8 CAN junction connector

   Result

   Result	Proceed to
   OK	A
   NG (No. 8 CAN junction connector main lines)	B
   NG (No. 12 CAN junction connector main lines)	C

Result: 

A 

REPLACE NO. 9 CAN JUNCTION CONNECTOR 

Result: 

C 

See step  11

Result: 

B 

See step  9

1. Reconnect the R56 No. 9 CAN junction connector.
2. Disconnect the A86 No. 1 CAN junction connector.

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

   *a	Front view of wire harness connector (to No. 1 CAN Junction Connector)
   *b	to No. 8 CAN Junction Connector
   *c	to Network Gateway ECU

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

   Standard Resistance

   Tester Connection	Condition	Specified Condition	Connected to
   A86-8 (CANH) - A86-19 (CANL)	Cable disconnected from negative (-) battery terminal	108 to 132 Ω	No. 8 CAN junction connector
   A86-9 (CANH) - A86-20 (CANL)	Cable disconnected from negative (-) battery terminal	108 to 132 Ω	Network gateway ECU

   Result

   Result	Proceed to
   OK	A
   NG (Network gateway ECU main lines)	B
   NG (No. 8 CAN junction connector main lines)	C

Result: 

A 

REPLACE NO. 1 CAN JUNCTION CONNECTOR 

Result: 

B 

REPAIR OR REPLACE CAN MAIN BUS LINES OR CONNECTOR (NETWORK GATEWAY ECU - NO. 1 CAN JUNCTION CONNECTOR) 

Result: 

C 

See step  10

1. Reconnect the A86 No. 1 CAN junction connector.
2. Disconnect the R55 No. 8 CAN junction connector.

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

   *a	Front view of wire harness connector (to No. 8 CAN Junction Connector)
   *b	to No. 9 CAN Junction Connector
   *c	to No. 1 CAN Junction Connector

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

   Standard Resistance

   Tester Connection	Condition	Specified Condition	Connected to
   R55-1 (CANH) - R55-12 (CANL)	Cable disconnected from negative (-) battery terminal	108 to 132 Ω	No. 9 CAN junction connector
   R55-2 (CANH) - R55-13 (CANL)	Cable disconnected from negative (-) battery terminal	108 to 132 Ω	No. 1 CAN junction connector

   Result

   Result	Proceed to
   OK	A
   NG (No. 1 CAN junction connector main lines)	B
   NG (No. 9 CAN junction connector main lines)	C

Result: 

A 

REPLACE NO. 8 CAN JUNCTION CONNECTOR 

Result: 

B 

REPAIR OR REPLACE CAN MAIN BUS LINES OR CONNECTOR (NO. 1 CAN JUNCTION CONNECTOR - NO. 8 CAN JUNCTION CONNECTOR) 

Result: 

C 

REPAIR OR REPLACE CAN MAIN BUS LINES OR CONNECTOR (NO. 8 CAN JUNCTION CONNECTOR - NO. 9 CAN JUNCTION CONNECTOR) 

1. Reconnect the R56 No. 9 CAN junction connector.
2. Disconnect the S92 No. 12 CAN junction connector.

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

   *a	Front view of wire harness connector (to No. 12 CAN Junction Connector)
   *b	to No. 7 CAN Junction Connector
   *c	to No. 9 CAN Junction Connector

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

   Standard Resistance

   Tester Connection	Condition	Specified Condition	Connected to
   S92-8 (CANH) - S92-19 (CANL)	Cable disconnected from negative (-) battery terminal	108 to 132 Ω	No. 7 CAN junction connector
   S92-9 (CANH) - S92-20 (CANL)	Cable disconnected from negative (-) battery terminal	108 to 132 Ω	No. 9 CAN junction connector

   Result

   Result	Proceed to
   OK	A
   NG (No. 7 CAN junction connector main lines)	B
   NG (No. 9 CAN junction connector main lines)	C

Result: 

A 

REPLACE NO. 12 CAN JUNCTION CONNECTOR 

Result: 

C 

REPAIR OR REPLACE CAN MAIN BUS LINES OR CONNECTOR (NO. 9 CAN JUNCTION CONNECTOR - NO. 12 CAN JUNCTION CONNECTOR) 

Result: 

B 

See step  12

1. Reconnect the S92 No. 12 CAN junction connector.
2. Disconnect the J99 No. 7 CAN junction connector.

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

   *a	Front view of wire harness connector (to No. 7 CAN Junction Connector)
   *b	to Airbag Sensor Assembly
   *c	to No. 12 CAN Junction Connector

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

   Standard Resistance

   Tester Connection	Condition	Specified Condition	Connected to
   J99-1 (CANH) - J99-12 (CANL)	Cable disconnected from negative (-) battery terminal	108 to 132 Ω	Airbag sensor assembly
   J99-6 (CANH) - J99-17 (CANL)	Cable disconnected from negative (-) battery terminal	108 to 132 Ω	No. 12 CAN junction connector

   Result

   Result	Proceed to
   OK	A
   NG (Airbag sensor assembly main lines)	B
   NG (No. 12 CAN junction connector main lines)	C

Result: 

A 

REPLACE NO. 7 CAN JUNCTION CONNECTOR 

Result: 

B 

REPAIR OR REPLACE CAN MAIN BUS LINES OR CONNECTOR (AIRBAG SENSOR ASSEMBLY - NO. 7 CAN JUNCTION CONNECTOR) 

Result: 

C 

REPAIR OR REPLACE CAN MAIN BUS LINES OR CONNECTOR (NO. 7 CAN JUNCTION CONNECTOR - NO. 12 CAN JUNCTION CONNECTOR)