Open in Bus 5 Main Bus Line [10/2015 - 09/2018]: Procedure

1. Disconnect the cable from the negative (-) battery terminal.

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

   *a	Rear view of wire harness connector (to No. 4 CAN Junction Connector)
   *b	to No. 9 CAN Junction Connector
   *c	to Central Gateway ECU

2. Disconnect the No. 4 CAN junction connector.
3. Measure the resistance according to the value(s) in the table below.

   Standard Resistance

   Tester Connection	Condition	Specified Condition	Connect to
   N167-8 (CANH) - N167-19 (CANL)	Cable disconnected from negative (-) battery terminal	108 to 132 Ω	Central gateway ECU
   N167-10 (CANH) - N167-21 (CANL)	Cable disconnected from negative (-) battery terminal	108 to 132 Ω	No. 9 CAN junction connector

   Result

   Result	Proceed to
   OK	A
   NG (Central gateway ECU CAN main wire)	B
   NG (No. 9 CAN junction connector CAN main wire)	C

Result: 

A 

REPLACE NO. 4 CAN JUNCTION CONNECTOR 

Result: 

C 

See step  4

Result: 

B 

See step  2

1. Reconnect the N167 No. 4 CAN junction connector.

   Result

   Proceed to
   NEXT

Result: 

NEXT 

See step  3

1. Disconnect the central gateway ECU connector.

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

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

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

   Standard Resistance

   Tester Connection	Condition	Specified Condition
   N165-15 (CA5H) - N165-16 (CA5L)	Cable disconnected from negative (-) battery terminal	200 Ω or higher

   Result

   Proceed to
   OK
   NG

Result: 

OK 

REPLACE CENTRAL GATEWAY ECU. Refer to  REMOVAL [09/2014 - ] 

Result: 

NG 

REPAIR OR REPLACE CAN MAIN WIRE OR CONNECTOR (CENTRAL GATEWAY ECU - NO. 4 CAN JUNCTION CONNECTOR) 

1. Reconnect the N167 No. 4 CAN junction connector.

   Result

   Proceed to
   NEXT

Result: 

NEXT 

See step  5

1. Disconnect the No. 9 CAN junction connector.

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

   *a	Rear view of wire harness connector (to No. 9 CAN Junction Connector)
   *b	to No. 8 CAN Junction Connector
   *c	to No. 4 CAN Junction Connector

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

   Standard Resistance

   Tester Connection	Condition	Specified Condition	Connect to
   N166-3 (CANH) - N166-14 (CANL)	Cable disconnected from negative (-) battery terminal	108 to 132 Ω	No. 8 CAN junction connector
   N166-5 (CANH) - N166-16 (CANL)	Cable disconnected from negative (-) battery terminal	108 to 132 Ω	No. 4 CAN junction connector

   Result

   Result	Proceed to
   OK	A
   NG (No. 4 CAN junction connector CAN main wire)	B
   NG (No. 8 CAN junction connector CAN main wire)	C

Result: 

A 

REPLACE NO. 9 CAN JUNCTION CONNECTOR 

Result: 

B 

REPAIR OR REPLACE CAN MAIN WIRE OR CONNECTOR (NO. 9 CAN JUNCTION CONNECTOR - NO. 4 CAN JUNCTION CONNECTOR) 

Result: 

C 

See step  6

1. Reconnect the N166 No. 9 CAN junction connector.

   Result

   Proceed to
   NEXT

Result: 

NEXT 

See step  7

1. Disconnect the No. 8 CAN junction connector.

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

   *a	Rear view of wire harness connector (to No. 8 CAN Junction Connector)
   *b	to No. 9 CAN Junction Connector
   *c	to Central Gateway ECU

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

   Standard Resistance

   Tester Connection	Condition	Specified Condition	Connect to
   T46-8 (CANH) - T46-19 (CANL)	Cable disconnected from negative (-) battery terminal	108 to 132 Ω	No. 9 CAN junction connector
   T46-9 (CANH) - T46-20 (CANL)	Cable disconnected from negative (-) battery terminal	108 to 132 Ω	Central gateway ECU

   Result

   Result	Proceed to
   OK	A
   NG (No. 9 CAN junction connector CAN main wire)	B
   NG (Central gateway ECU CAN main wire)	C

Result: 

A 

REPLACE NO. 8 CAN JUNCTION CONNECTOR 

Result: 

B 

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

Result: 

C 

See step  8

1. Reconnect the T46 No. 8 CAN junction connector.

   Result

   Proceed to
   NEXT

Result: 

NEXT 

See step  9

1. Disconnect the central gateway ECU connector.

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

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

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

   Standard Resistance

   Tester Connection	Condition	Specified Condition
   N165-9 (CAXH) - N165-24 (CAXL)	Cable disconnected from negative (-) battery terminal	200 Ω or higher

   Result

   Proceed to
   OK
   NG

Result: 

OK 

REPLACE CENTRAL GATEWAY ECU. Refer to  REMOVAL [09/2014 - ] 

Result: 

NG 

REPAIR OR REPLACE CAN MAIN WIRE OR CONNECTOR (CENTRAL GATEWAY ECU - NO. 8 CAN JUNCTION CONNECTOR)