Open in Bus 2 Main Bus Line [12/2017 - 10/2020]: Procedure

1. Disconnect the cable from the negative (-) battery terminal.
2. Disconnect the G129 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
   G129-12 (CANH) - G129-1 (CANL)	Cable disconnected from negative (-) battery terminal	108 to 132 Ω	Central gateway ECU (network gateway ECU)
   G129-16 (CANH) - G129-5 (CANL)	Cable disconnected from negative (-) battery terminal	108 to 132 Ω	No. 13 CAN junction connector

   Result

   Result	Proceed to
   OK	A
   NG (Central gateway ECU [network gateway ECU]) CAN main wire)	B
   NG (No. 13 CAN junction connector CAN main wire)	C

Result: 

A 

REPLACE NO. 9 CAN JUNCTION CONNECTOR 

Result: 

C 

See step  3

Result: 

B 

See step  2

1. Reconnect the G129 No. 9 CAN junction connector.
2. Disconnect the G66 central gateway ECU (network gateway ECU) connector.
3. Measure the resistance according to the value(s) in the table below.

   Standard Resistance

   Tester Connection	Condition	Specified Condition
   G66-23 (CA1H) - G66-8 (CA1L)	Cable disconnected from negative (-) battery terminal	108 to 132 Ω

   Result

   Proceed to
   OK
   NG

Result: 

OK 

REPLACE CENTRAL GATEWAY ECU (NETWORK GATEWAY ECU). Refer to  REMOVAL [12/2017 - 10/2023] 

Result: 

NG 

REPAIR OR REPLACE CAN MAIN WIRE OR CONNECTOR (CENTRAL GATEWAY ECU [NETWORK GATEWAY ECU] - NO. 9 CAN JUNCTION CONNECTOR) 

1. Reconnect the G129 No. 9 CAN junction connector.
2. Disconnect the L118 No. 13 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
   L118-1 (CANH) - L118-7 (CANL)	Cable disconnected from negative (-) battery terminal	108 to 132 Ω	ECM
   L118-3 (CANH) - L118-9 (CANL)	Cable disconnected from negative (-) battery terminal	108 to 132 Ω	No. 9 CAN junction connector

   Result

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

Result: 

A 

REPLACE NO. 13 CAN JUNCTION CONNECTOR 

Result: 

C 

REPAIR OR REPLACE CAN MAIN WIRE OR CONNECTOR (NO. 13 CAN JUNCTION CONNECTOR - NO. 9 CAN JUNCTION CONNECTOR) 

Result: 

B 

See step  4

1. Reconnect the L118 No. 13 CAN junction connector.
2. Disconnect the A95 ECM connector.
3. Measure the resistance according to the value(s) in the table below.

   Standard Resistance

   Tester Connection	Condition	Specified Condition
   A95-18 (CANH) - A95-17 (CANL)	Cable disconnected from negative (-) battery terminal	108 to 132 Ω

   Result

   Proceed to
   OK
   NG

Result: 

OK 

REPLACE ECM. Refer to  REMOVAL [12/2017 - 09/2018]  , or refer to  REMOVAL [09/2018 - 10/2020] 

Result: 

NG 

REPAIR OR REPLACE CAN MAIN WIRE OR CONNECTOR (ECM - NO. 13 CAN JUNCTION CONNECTOR)