Toyota Corolla Cross Owners & Service Manuals

Toyota Corolla Cross: Check Bus 4 Line

DESCRIPTION

Symptom

Trouble Area

There are ECUs or sensors that display a communication stop on the bus diagnostic screen. Or, there are ECUs or sensors that display communication stop history on the "Detail" screen.

  • CAN main bus line, CAN branch line or connector
  • Central gateway ECU (network gateway ECU)
  • Skid control ECU (brake actuator assembly)
  • Electric brake booster (brake booster with master cylinder assembly)
  • Steering sensor
  • Airbag ECU assembly
  • Power steering ECU assembly
  • No. 9 global CAN junction connector
  • No. 11 global CAN junction connector

WIRING DIAGRAM

CAUTION / NOTICE / HINT

CAUTION:

When performing the confirmation driving pattern, obey all speed limits and traffic laws.

NOTICE:

  • Because the order of diagnosis is important to allow correct diagnosis, make sure to begin troubleshooting using How to Proceed with Troubleshooting when CAN communication system related DTCs are output.

    Click here

  • Before measuring the resistance of the CAN bus, turn the ignition switch off and leave the vehicle for 1 minute or more without operating the key or any switches, or opening or closing the doors. After that, disconnect the cable from the negative (-) auxiliary battery terminal and leave the vehicle for 1 minute or more before measuring the resistance.
  • After the ignition switch is turned off, there may be a waiting time before disconnecting the negative (-) auxiliary battery terminal.

    Click here

  • When disconnecting and reconnecting the auxiliary battery.

    HINT:

    When disconnecting and reconnecting the auxiliary battery, there is an automatic learning function that completes learning when the respective system is used.

    Click here

  • Some parts must be initialized and set when replacing or removing and installing parts.

    Click here

  • After performing repairs, perform the DTC check procedure and confirm that the DTCs are not output again.

    DTC check procedure: Turn the ignition switch to ON and wait for 1 minute or more. Then operate the suspected malfunctioning system and drive the vehicle at 60 km/h (37 mph) or more for 5 minutes or more.

  • After the repair, perform the CAN bus check and check that all the ECUs and sensors connected to the CAN communication system are displayed as normal.

    Click here

HINT:

  • Before disconnecting related connectors for inspection, push in on each connector body to check that the connector is not loose or disconnected.
  • When a connector is disconnected, check that the terminals and connector body are not cracked, deformed or corroded.

PROCEDURE

1.

CHECK FOR OPEN IN CAN MAIN BUS LINES

(a) Disconnect the cable from the negative (-) auxiliary battery terminal.

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

Standard Resistance:

Tester Connection

Condition

Specified Condition

I231-24 (CA2H) - I231-23 (CA2L)

Cable disconnected from negative (-) auxiliary battery terminal

Below 70 Ω

*a

Component with harness connected

(Central Gateway ECU (Network Gateway ECU))

NG

GO TO STEP 47

OK

2.

CHECK FOR SHORT IN CAN BUS LINES

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

Standard Resistance:

Tester Connection

Condition

Specified Condition

I231-24 (CA2H) - I231-23 (CA2L)

Cable disconnected from negative (-) auxiliary battery terminal

54 Ω or higher

*a

Component with harness connected

(Central Gateway ECU (Network Gateway ECU))

NG

GO TO STEP 33

OK

3.

CHECK FOR SHORT TO +B IN CAN BUS LINE

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

*1

DLC3

-

-

*a

Component with harness connected

(Central Gateway ECU (Network Gateway ECU))

-

-

Standard Resistance:

Tester Connection

Condition

Specified Condition

I231-24 (CA2H) - I26-16 (BAT)

Cable disconnected from negative (-) auxiliary battery terminal

6 kΩ or higher

I231-23 (CA2L) - I26-16 (BAT)

NG

GO TO STEP 19

OK

4.

CHECK FOR SHORT TO GND IN CAN BUS LINE

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

*1

DLC3

-

-

*a

Component with harness connected

(Central Gateway ECU (Network Gateway ECU))

-

-

Standard Resistance:

Tester Connection

Condition

Specified Condition

I231-24 (CA2H) - I26-4 (CG)

Cable disconnected from negative (-) auxiliary battery terminal

200 Ω or higher

I231-23 (CA2L) - I26-4 (CG)

OK

REPLACE CENTRAL GATEWAY ECU (NETWORK GATEWAY ECU)

NG

5.

CHECK FOR SHORT TO GND IN CAN BUS LINE (NO. 9 GLOBAL CAN JUNCTION CONNECTOR - CENTRAL GATEWAY ECU (NETWORK GATEWAY ECU))

(a) Disconnect the No. 9 global CAN junction connector.

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

*1

DLC3

-

-

*a

Front view of wire harness connector

(to No. 9 Global CAN Junction Connector)

*b

to Central Gateway ECU (Network Gateway ECU)

Standard Resistance:

Tester Connection

Condition

Specified Condition

A193-8 (CANH) - I26-4 (CG)

Cable disconnected from negative (-) auxiliary battery terminal

200 Ω or higher

A193-19 (CANL) - I26-4 (CG)

NG

GO TO STEP 18

OK

6.

CHECK FOR SHORT TO GND IN CAN BUS LINE (NO. 9 GLOBAL CAN JUNCTION CONNECTOR - NO. 11 GLOBAL CAN JUNCTION CONNECTOR)

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

*1

DLC3

-

-

*a

Front view of wire harness connector

(to No. 9 Global CAN Junction Connector)

*b

to No. 11 Global CAN Junction Connector

Standard Resistance:

Tester Connection

Condition

Specified Condition

A193-10 (CANH) - I26-4 (CG)

Cable disconnected from negative (-) auxiliary battery terminal

200 Ω or higher

A193-21 (CANL) - I26-4 (CG)

NG

GO TO STEP 11

OK

7.

CHECK FOR SHORT TO GND IN CAN BUS LINE (NO. 9 GLOBAL CAN JUNCTION CONNECTOR - SKID CONTROL ECU (BRAKE ACTUATOR ASSEMBLY))

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

*1

DLC3

-

-

*a

Front view of wire harness connector

(to No. 9 Global CAN Junction Connector)

*b

to Skid Control ECU (Brake Actuator Assembly)

Standard Resistance:

Tester Connection

Condition

Specified Condition

A193-9 (CANH) - I26-4 (CG)

Cable disconnected from negative (-) auxiliary battery terminal

200 Ω or higher

A193-20 (CANL) - I26-4 (CG)

NG

GO TO STEP 9

OK

8.

CHECK FOR SHORT TO GND IN CAN BUS LINE (NO. 9 GLOBAL CAN JUNCTION CONNECTOR - ELECTRIC BRAKE BOOSTER (BRAKE BOOSTER WITH MASTER CYLINDER ASSEMBLY))

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

*1

DLC3

-

-

*a

Front view of wire harness connector

(to No. 9 Global CAN Junction Connector)

*b

to Electric Brake Booster (Brake Booster with Master Cylinder Assembly)

Standard Resistance:

Tester Connection

Condition

Specified Condition

A193-11 (CANH) - I26-4 (CG)

Cable disconnected from negative (-) auxiliary battery terminal

200 Ω or higher

A193-22 (CANL) - I26-4 (CG)

OK

REPLACE NO. 9 GLOBAL CAN JUNCTION CONNECTOR

NG

GO TO STEP 10

9.

CHECK FOR SHORT TO GND IN CAN BUS LINE (NO. 9 GLOBAL CAN JUNCTION CONNECTOR - SKID CONTROL ECU (BRAKE ACTUATOR ASSEMBLY))

(a) Disconnect the A151 skid control ECU (brake actuator assembly) connector.

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

*1

DLC3

-

-

*a

Front view of wire harness connector

(to No. 9 Global CAN Junction Connector)

*b

to Skid Control ECU (Brake Actuator Assembly)

Standard Resistance:

Tester Connection

Condition

Specified Condition

A193-9 (CANH) - I26-4 (CG)

Cable disconnected from negative (-) auxiliary battery terminal

200 Ω or higher

A193-20 (CANL) - I26-4 (CG)

OK

REPLACE SKID CONTROL ECU (BRAKE ACTUATOR ASSEMBLY)

NG

REPAIR OR REPLACE CAN BRANCH LINE OR CONNECTOR (NO. 9 GLOBAL CAN JUNCTION CONNECTOR - SKID CONTROL ECU (BRAKE ACTUATOR ASSEMBLY))

10.

CHECK FOR SHORT TO GND IN CAN BUS LINE (NO. 9 GLOBAL CAN JUNCTION CONNECTOR - ELECTRIC BRAKE BOOSTER (BRAKE BOOSTER WITH MASTER CYLINDER ASSEMBLY))

(a) Disconnect the A189 electric brake booster (brake booster with master cylinder assembly) connector.

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

*1

DLC3

-

-

*a

Front view of wire harness connector

(to No. 9 Global CAN Junction Connector)

*b

to Electric Brake Booster (Brake Booster with Master Cylinder Assembly)

Standard Resistance:

Tester Connection

Condition

Specified Condition

A193-11 (CANH) - I26-4 (CG)

Cable disconnected from negative (-) auxiliary battery terminal

200 Ω or higher

A193-22 (CANL) - I26-4 (CG)

OK

REPLACE ELECTRIC BRAKE BOOSTER (BRAKE BOOSTER WITH MASTER CYLINDER ASSEMBLY)

NG

REPAIR OR REPLACE CAN BRANCH LINE OR CONNECTOR (NO. 9 GLOBAL CAN JUNCTION CONNECTOR - ELECTRIC BRAKE BOOSTER (BRAKE BOOSTER WITH MASTER CYLINDER ASSEMBLY))

11.

CHECK FOR SHORT TO GND IN CAN BUS LINE (NO. 11 GLOBAL CAN JUNCTION CONNECTOR - NO. 9 GLOBAL CAN JUNCTION CONNECTOR)

(a) Disconnect the No. 11 global CAN junction connector.

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

*1

DLC3

-

-

*a

Front view of wire harness connector

(to No. 11 Global CAN Junction Connector)

*b

to No. 9 Global CAN Junction Connector

Standard Resistance:

Tester Connection

Condition

Specified Condition

I264-3 (CANH) - I26-4 (CG)

Cable disconnected from negative (-) auxiliary battery terminal

200 Ω or higher

I264-10 (CANL) - I26-4 (CG)

NG

REPAIR OR REPLACE CAN MAIN BUS LINE OR CONNECTOR (NO. 11 GLOBAL CAN JUNCTION CONNECTOR - NO. 9 GLOBAL CAN JUNCTION CONNECTOR)

OK

12.

CHECK FOR SHORT TO GND IN CAN BUS LINE (NO. 11 GLOBAL CAN JUNCTION CONNECTOR - POWER STEERING ECU ASSEMBLY)

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

*1

DLC3

-

-

*a

Front view of wire harness connector

(to No. 11 Global CAN Junction Connector)

*b

to Power Steering ECU Assembly

Standard Resistance:

Tester Connection

Condition

Specified Condition

I264-7 (CANH) - I26-4 (CG)

Cable disconnected from negative (-) auxiliary battery terminal

200 Ω or higher

I264-14 (CANL) - I26-4 (CG)

NG

GO TO STEP 15

OK

13.

CHECK FOR SHORT TO GND IN CAN BUS LINE (NO. 11 GLOBAL CAN JUNCTION CONNECTOR - STEERING SENSOR)

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

*1

DLC3

-

-

*a

Front view of wire harness connector

(to No. 11 Global CAN Junction Connector)

*b

to Steering Sensor

Standard Resistance:

Tester Connection

Condition

Specified Condition

I264-5 (CANH) - I26-4 (CG)

Cable disconnected from negative (-) auxiliary battery terminal

200 Ω or higher

I264-12 (CANL) - I26-4 (CG)

NG

GO TO STEP 16

OK

14.

CHECK FOR SHORT TO GND IN CAN BUS LINE (NO. 11 GLOBAL CAN JUNCTION CONNECTOR - AIRBAG ECU ASSEMBLY)

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

*1

DLC3

-

-

*a

Front view of wire harness connector

(to No. 11 Global CAN Junction Connector)

*b

to Airbag ECU Assembly

Standard Resistance:

Tester Connection

Condition

Specified Condition

I264-1 (CANH) - I26-4 (CG)

Cable disconnected from negative (-) auxiliary battery terminal

200 Ω or higher

I264-8 (CANL) - I26-4 (CG)

OK

REPLACE NO. 11 GLOBAL CAN JUNCTION CONNECTOR

NG

GO TO STEP 17

15.

CHECK FOR SHORT TO GND IN CAN BUS LINE (NO. 11 GLOBAL CAN JUNCTION CONNECTOR - POWER STEERING ECU ASSEMBLY)

(a) Disconnect the I21 power steering ECU assembly connector.

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

*1

DLC3

-

-

*a

Front view of wire harness connector

(to No. 11 Global CAN Junction Connector)

*b

to Power Steering ECU Assembly

Standard Resistance:

Tester Connection

Condition

Specified Condition

I264-7 (CANH) - I26-4 (CG)

Cable disconnected from negative (-) auxiliary battery terminal

200 Ω or higher

I264-14 (CANL) - I26-4 (CG)

OK

REPLACE POWER STEERING ECU ASSEMBLY

NG

REPAIR OR REPLACE CAN MAIN BUS LINE OR CONNECTOR (NO. 11 GLOBAL CAN JUNCTION CONNECTOR - POWER STEERING ECU ASSEMBLY)

16.

CHECK FOR SHORT TO GND IN CAN BUS LINE (NO. 11 GLOBAL CAN JUNCTION CONNECTOR - STEERING SENSOR)

(a) Disconnect the I229 steering sensor connector.

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

*1

DLC3

-

-

*a

Front view of wire harness connector

(to No. 11 Global CAN Junction Connector)

*b

to Steering Sensor

Standard Resistance:

Tester Connection

Condition

Specified Condition

I264-5 (CANH) - I26-4 (CG)

Cable disconnected from negative (-) auxiliary battery terminal

200 Ω or higher

I264-12 (CANL) - I26-4 (CG)

OK

REPLACE STEERING SENSOR

NG

REPAIR OR REPLACE CAN BRANCH LINE OR CONNECTOR (NO. 11 GLOBAL CAN JUNCTION CONNECTOR - STEERING SENSOR)

17.

CHECK FOR SHORT TO GND IN CAN BUS LINE (NO. 11 GLOBAL CAN JUNCTION CONNECTOR - AIRBAG ECU ASSEMBLY)

(a) Disconnect the I47 airbag ECU assembly connector.

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

*1

DLC3

-

-

*a

Front view of wire harness connector

(to No. 11 Global CAN Junction Connector)

*b

to Airbag ECU Assembly

Standard Resistance:

Tester Connection

Condition

Specified Condition

I264-1 (CANH) - I26-4 (CG)

Cable disconnected from negative (-) auxiliary battery terminal

200 Ω or higher

I264-8 (CANL) - I26-4 (CG)

OK

REPLACE AIRBAG ECU ASSEMBLY

NG

REPAIR OR REPLACE CAN BRANCH LINE OR CONNECTOR (NO. 11 GLOBAL CAN JUNCTION CONNECTOR - AIRBAG ECU ASSEMBLY)

18.

CHECK FOR SHORT TO GND IN CAN BUS LINE (NO. 9 GLOBAL CAN JUNCTION CONNECTOR - CENTRAL GATEWAY ECU (NETWORK GATEWAY ECU))

(a) Disconnect the I231 central gateway ECU (network gateway ECU) connector.

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

*1

DLC3

-

-

*a

Front view of wire harness connector

(to No. 9 Global CAN Junction Connector)

*b

to Central Gateway ECU (Network Gateway ECU)

Standard Resistance:

Tester Connection

Condition

Specified Condition

A193-8 (CANH) - I26-4 (CG)

Cable disconnected from negative (-) auxiliary battery terminal

200 Ω or higher

A193-19 (CANL) - I26-4 (CG)

OK

REPLACE CENTRAL GATEWAY ECU (NETWORK GATEWAY ECU)

NG

REPAIR OR REPLACE CAN MAIN BUS LINE OR CONNECTOR (NO. 9 GLOBAL CAN JUNCTION CONNECTOR - CENTRAL GATEWAY ECU (NETWORK GATEWAY ECU))

19.

CHECK FOR SHORT TO +B IN CAN BUS LINE (NO. 9 GLOBAL CAN JUNCTION CONNECTOR - CENTRAL GATEWAY ECU (NETWORK GATEWAY ECU))

(a) Disconnect the No. 9 global CAN junction connector.

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

*1

DLC3

-

-

*a

Front view of wire harness connector

(to No. 9 Global CAN Junction Connector)

*b

to Central Gateway ECU (Network Gateway ECU)

Standard Resistance:

Tester Connection

Condition

Specified Condition

A193-8 (CANH) - I26-16 (BAT)

Cable disconnected from negative (-) auxiliary battery terminal

6 kΩ or higher

A193-19 (CANL) - I26-16 (BAT)

NG

GO TO STEP 32

OK

20.

CHECK FOR SHORT TO +B IN CAN BUS LINE (NO. 9 GLOBAL CAN JUNCTION CONNECTOR - NO. 11 GLOBAL CAN JUNCTION CONNECTOR)

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

*1

DLC3

-

-

*a

Front view of wire harness connector

(to No. 9 Global CAN Junction Connector)

*b

to No. 11 Global CAN Junction Connector

Standard Resistance:

Tester Connection

Condition

Specified Condition

A193-10 (CANH) - I26-16 (BAT)

Cable disconnected from negative (-) auxiliary battery terminal

6 kΩ or higher

A193-21 (CANL) - I26-16 (BAT)

NG

GO TO STEP 25

OK

21.

CHECK FOR SHORT TO +B IN CAN BUS LINE (NO. 9 GLOBAL CAN JUNCTION CONNECTOR - SKID CONTROL ECU (BRAKE ACTUATOR ASSEMBLY))

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

*1

DLC3

-

-

*a

Front view of wire harness connector

(to No. 9 Global CAN Junction Connector)

*b

to Skid Control ECU (Brake Actuator Assembly)

Standard Resistance:

Tester Connection

Condition

Specified Condition

A193-9 (CANH) - I26-16 (BAT)

Cable disconnected from negative (-) auxiliary battery terminal

6 kΩ or higher

A193-20 (CANL) - I26-16 (BAT)

NG

GO TO STEP 23

OK

22.

CHECK FOR SHORT TO +B IN CAN BUS LINE (NO. 9 GLOBAL CAN JUNCTION CONNECTOR - ELECTRIC BRAKE BOOSTER (BRAKE BOOSTER WITH MASTER CYLINDER ASSEMBLY))

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

*1

DLC3

-

-

*a

Front view of wire harness connector

(to No. 9 Global CAN Junction Connector)

*b

to Electric Brake Booster (Brake Booster with Master Cylinder Assembly)

Standard Resistance:

Tester Connection

Condition

Specified Condition

A193-11 (CANH) - I26-16 (BAT)

Cable disconnected from negative (-) auxiliary battery terminal

6 kΩ or higher

A193-22 (CANL) - I26-16 (BAT)

OK

REPLACE NO. 9 GLOBAL CAN JUNCTION CONNECTOR

NG

GO TO STEP 24

23.

CHECK FOR SHORT TO +B IN CAN BUS LINE (NO. 9 GLOBAL CAN JUNCTION CONNECTOR - SKID CONTROL ECU (BRAKE ACTUATOR ASSEMBLY))

(a) Disconnect the A151 skid control ECU (brake actuator assembly) connector.

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

*1

DLC3

-

-

*a

Front view of wire harness connector

(to No. 9 Global CAN Junction Connector)

*b

to Skid Control ECU (Brake Actuator Assembly)

Standard Resistance:

Tester Connection

Condition

Specified Condition

A193-9 (CANH) - I26-16 (BAT)

Cable disconnected from negative (-) auxiliary battery terminal

6 kΩ or higher

A193-20 (CANL) - I26-16 (BAT)

OK

REPLACE SKID CONTROL ECU (BRAKE ACTUATOR ASSEMBLY)

NG

REPAIR OR REPLACE CAN BRANCH LINE OR CONNECTOR (NO. 9 GLOBAL CAN JUNCTION CONNECTOR - SKID CONTROL ECU (BRAKE ACTUATOR ASSEMBLY))

24.

CHECK FOR SHORT TO +B IN CAN BUS LINE (NO. 9 GLOBAL CAN JUNCTION CONNECTOR - ELECTRIC BRAKE BOOSTER (BRAKE BOOSTER WITH MASTER CYLINDER ASSEMBLY))

(a) Disconnect the A189 electric brake booster (brake booster with master cylinder assembly) connector.

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

*1

DLC3

-

-

*a

Front view of wire harness connector

(to No. 9 Global CAN Junction Connector)

*b

to Electric Brake Booster (Brake Booster with Master Cylinder Assembly)

Standard Resistance:

Tester Connection

Condition

Specified Condition

A193-11 (CANH) - I26-16 (BAT)

Cable disconnected from negative (-) auxiliary battery terminal

6 kΩ or higher

A193-22 (CANL) - I26-16 (BAT)

OK

REPLACE ELECTRIC BRAKE BOOSTER (BRAKE BOOSTER WITH MASTER CYLINDER ASSEMBLY)

NG

REPAIR OR REPLACE CAN BRANCH LINE OR CONNECTOR (NO. 9 GLOBAL CAN JUNCTION CONNECTOR - ELECTRIC BRAKE BOOSTER (BRAKE BOOSTER WITH MASTER CYLINDER ASSEMBLY))

25.

CHECK FOR SHORT TO +B IN CAN BUS LINE (NO. 11 GLOBAL CAN JUNCTION CONNECTOR - NO. 9 GLOBAL CAN JUNCTION CONNECTOR)

(a) Disconnect the No. 11 global CAN junction connector.

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

*1

DLC3

-

-

*a

Front view of wire harness connector

(to No. 11 Global CAN Junction Connector)

*b

to No. 9 Global CAN Junction Connector

Standard Resistance:

Tester Connection

Condition

Specified Condition

I264-3 (CANH) - I26-16 (BAT)

Cable disconnected from negative (-) auxiliary battery terminal

6 kΩ or higher

I264-10 (CANL) - I26-16 (BAT)

NG

REPAIR OR REPLACE CAN MAIN BUS LINE OR CONNECTOR (NO. 11 GLOBAL CAN JUNCTION CONNECTOR - NO. 9 GLOBAL CAN JUNCTION CONNECTOR)

OK

26.

CHECK FOR SHORT TO +B IN CAN BUS LINE (NO. 11 GLOBAL CAN JUNCTION CONNECTOR - POWER STEERING ECU ASSEMBLY)

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

*1

DLC3

-

-

*a

Front view of wire harness connector

(to No. 11 Global CAN Junction Connector)

*b

to Power Steering ECU Assembly

Standard Resistance:

Tester Connection

Condition

Specified Condition

I264-7 (CANH) - I26-16 (BAT)

Cable disconnected from negative (-) auxiliary battery terminal

6 kΩ or higher

I264-14 (CANL) - I26-16 (BAT)

NG

GO TO STEP 29

OK

27.

CHECK FOR SHORT TO +B IN CAN BUS LINE (NO. 11 GLOBAL CAN JUNCTION CONNECTOR - STEERING SENSOR)

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

*1

DLC3

-

-

*a

Front view of wire harness connector

(to No. 11 Global CAN Junction Connector)

*b

to Steering Sensor

Standard Resistance:

Tester Connection

Condition

Specified Condition

I264-5 (CANH) - I26-16 (BAT)

Cable disconnected from negative (-) auxiliary battery terminal

6 kΩ or higher

I264-12 (CANL) - I26-16 (BAT)

NG

GO TO STEP 30

OK

28.

CHECK FOR SHORT TO +B IN CAN BUS LINE (NO. 11 GLOBAL CAN JUNCTION CONNECTOR - AIRBAG ECU ASSEMBLY)

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

*1

DLC3

-

-

*a

Front view of wire harness connector

(to No. 11 Global CAN Junction Connector)

*b

to Airbag ECU Assembly

Standard Resistance:

Tester Connection

Condition

Specified Condition

I264-1 (CANH) - I26-16 (BAT)

Cable disconnected from negative (-) auxiliary battery terminal

6 kΩ or higher

I264-8 (CANL) - I26-16 (BAT)

OK

REPLACE NO. 11 GLOBAL CAN JUNCTION CONNECTOR

NG

GO TO STEP 31

29.

CHECK FOR SHORT TO +B IN CAN BUS LINE (NO. 11 GLOBAL CAN JUNCTION CONNECTOR - POWER STEERING ECU ASSEMBLY)

(a) Disconnect the I21 power steering ECU assembly connector.

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

*1

DLC3

-

-

*a

Front view of wire harness connector

(to No. 11 Global CAN Junction Connector)

*b

to Power Steering ECU Assembly

Standard Resistance:

Tester Connection

Condition

Specified Condition

I264-7 (CANH) - I26-16 (BAT)

Cable disconnected from negative (-) auxiliary battery terminal

6 kΩ or higher

I264-14 (CANL) - I26-16 (BAT)

OK

REPLACE POWER STEERING ECU ASSEMBLY

NG

REPAIR OR REPLACE CAN MAIN BUS LINE OR CONNECTOR (NO. 11 GLOBAL CAN JUNCTION CONNECTOR - POWER STEERING ECU ASSEMBLY)

30.

CHECK FOR SHORT TO +B IN CAN BUS LINE (NO. 11 GLOBAL CAN JUNCTION CONNECTOR - STEERING SENSOR)

(a) Disconnect the I229 steering sensor connector.

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

*1

DLC3

-

-

*a

Front view of wire harness connector

(to No. 11 Global CAN Junction Connector)

*b

to Steering Sensor

Standard Resistance:

Tester Connection

Condition

Specified Condition

I264-5 (CANH) - I26-16 (BAT)

Cable disconnected from negative (-) auxiliary battery terminal

6 kΩ or higher

I264-12 (CANL) - I26-16 (BAT)

OK

REPLACE STEERING SENSOR

NG

REPAIR OR REPLACE CAN BRANCH LINE OR CONNECTOR (NO. 11 GLOBAL CAN JUNCTION CONNECTOR - STEERING SENSOR)

31.

CHECK FOR SHORT TO +B IN CAN BUS LINE (NO. 11 GLOBAL CAN JUNCTION CONNECTOR - AIRBAG ECU ASSEMBLY)

(a) Disconnect the I47 airbag ECU assembly connector.

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

*1

DLC3

-

-

*a

Front view of wire harness connector

(to No. 11 Global CAN Junction Connector)

*b

to Airbag ECU Assembly

Standard Resistance:

Tester Connection

Condition

Specified Condition

I264-1 (CANH) - I26-16 (BAT)

Cable disconnected from negative (-) auxiliary battery terminal

6 kΩ or higher

I264-8 (CANL) - I26-16 (BAT)

OK

REPLACE AIRBAG ECU ASSEMBLY

NG

REPAIR OR REPLACE CAN BRANCH LINE OR CONNECTOR (NO. 11 GLOBAL CAN JUNCTION CONNECTOR - AIRBAG ECU ASSEMBLY)

32.

CHECK FOR SHORT TO +B IN CAN BUS LINE (NO. 9 GLOBAL CAN JUNCTION CONNECTOR - CENTRAL GATEWAY ECU (NETWORK GATEWAY ECU))

(a) Disconnect the I231 central gateway ECU (network gateway ECU) connector.

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

*1

DLC3

-

-

*a

Front view of wire harness connector

(to No. 9 Global CAN Junction Connector)

*b

to Central Gateway ECU (Network Gateway ECU)

Standard Resistance:

Tester Connection

Condition

Specified Condition

A193-8 (CANH) - I26-16 (BAT)

Cable disconnected from negative (-) auxiliary battery terminal

6 kΩ or higher

A193-19 (CANL) - I26-16 (BAT)

OK

REPLACE CENTRAL GATEWAY ECU (NETWORK GATEWAY ECU)

NG

REPAIR OR REPLACE CAN MAIN BUS LINE OR CONNECTOR (NO. 9 GLOBAL CAN JUNCTION CONNECTOR - CENTRAL GATEWAY ECU (NETWORK GATEWAY ECU))

33.

CHECK FOR SHORT IN CAN BUS LINES (NO. 9 GLOBAL CAN JUNCTION CONNECTOR - CENTRAL GATEWAY ECU (NETWORK GATEWAY ECU))

(a) Disconnect the No. 9 global CAN junction connector.

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

*a

Front view of wire harness connector

(to No. 9 Global CAN Junction Connector)

*b

to Central Gateway ECU (Network Gateway ECU)

Standard Resistance:

Tester Connection

Condition

Specified Condition

A193-8 (CANH) - A193-19 (CANL)

Cable disconnected from negative (-) auxiliary battery terminal

108 to 132 Ω

NG

GO TO STEP 46

OK

34.

CHECK FOR SHORT IN CAN BUS LINES (NO. 9 GLOBAL CAN JUNCTION CONNECTOR - NO. 11 GLOBAL CAN JUNCTION CONNECTOR)

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

*a

Front view of wire harness connector

(to No. 9 Global CAN Junction Connector)

*b

to No. 11 Global CAN Junction Connector

Standard Resistance:

Tester Connection

Condition

Specified Condition

A193-10 (CANH) - A193-21 (CANL)

Cable disconnected from negative (-) auxiliary battery terminal

108 to 132 Ω

NG

GO TO STEP 39

OK

35.

CHECK FOR SHORT IN CAN BUS LINES (NO. 9 GLOBAL CAN JUNCTION CONNECTOR - SKID CONTROL ECU (BRAKE ACTUATOR ASSEMBLY))

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

*a

Front view of wire harness connector

(to No. 9 Global CAN Junction Connector)

*b

to Skid Control ECU (Brake Actuator Assembly)

Standard Resistance:

Tester Connection

Condition

Specified Condition

A193-9 (CANH) - A193-20 (CANL)

Cable disconnected from negative (-) auxiliary battery terminal

200 Ω or higher

NG

GO TO STEP 37

OK

36.

CHECK FOR SHORT IN CAN BUS LINES (NO. 9 GLOBAL CAN JUNCTION CONNECTOR - ELECTRIC BRAKE BOOSTER (BRAKE BOOSTER WITH MASTER CYLINDER ASSEMBLY))

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

*a

Front view of wire harness connector

(to No. 9 Global CAN Junction Connector)

*b

to Electric Brake Booster (Brake Booster with Master Cylinder Assembly)

Standard Resistance:

Tester Connection

Condition

Specified Condition

A193-11 (CANH) - A193-22 (CANL)

Cable disconnected from negative (-) auxiliary battery terminal

200 Ω or higher

OK

REPLACE NO. 9 GLOBAL CAN JUNCTION CONNECTOR

NG

GO TO STEP 38

37.

CHECK FOR SHORT IN CAN BUS LINES (NO. 9 GLOBAL CAN JUNCTION CONNECTOR - SKID CONTROL ECU (BRAKE ACTUATOR ASSEMBLY))

(a) Disconnect the A151 skid control ECU (brake actuator assembly) connector.

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

*a

Front view of wire harness connector

(to No. 9 Global CAN Junction Connector)

*b

to Skid Control ECU (Brake Actuator Assembly)

Standard Resistance:

Tester Connection

Condition

Specified Condition

A193-9 (CANH) - A193-20 (CANL)

Cable disconnected from negative (-) auxiliary battery terminal

1 MΩ or higher

OK

REPLACE SKID CONTROL ECU (BRAKE ACTUATOR ASSEMBLY)

NG

REPAIR OR REPLACE CAN BRANCH LINES OR CONNECTOR (NO. 9 GLOBAL CAN JUNCTION CONNECTOR - SKID CONTROL ECU (BRAKE ACTUATOR ASSEMBLY))

38.

CHECK FOR SHORT IN CAN BUS LINES (NO. 9 GLOBAL CAN JUNCTION CONNECTOR - ELECTRIC BRAKE BOOSTER (BRAKE BOOSTER WITH MASTER CYLINDER ASSEMBLY))

(a) Disconnect the A189 electric brake booster (brake booster with master cylinder assembly) connector.

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

*a

Front view of wire harness connector

(to No. 9 Global CAN Junction Connector)

*b

to Electric Brake Booster (Brake Booster with Master Cylinder Assembly)

Standard Resistance:

Tester Connection

Condition

Specified Condition

A193-11 (CANH) - A193-22 (CANL)

Cable disconnected from negative (-) auxiliary battery terminal

1 MΩ or higher

OK

REPLACE ELECTRIC BRAKE BOOSTER (BRAKE BOOSTER WITH MASTER CYLINDER ASSEMBLY)

NG

REPAIR OR REPLACE CAN BRANCH LINES OR CONNECTOR (NO. 9 GLOBAL CAN JUNCTION CONNECTOR - ELECTRIC BRAKE BOOSTER (BRAKE BOOSTER WITH MASTER CYLINDER ASSEMBLY))

39.

CHECK FOR SHORT IN CAN BUS LINES (NO. 11 GLOBAL CAN JUNCTION CONNECTOR - NO. 9 GLOBAL CAN JUNCTION CONNECTOR)

(a) Reconnect the A193 No. 9 global CAN junction connector.

(b) Disconnect the No. 11 global CAN junction connector.

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

*a

Front view of wire harness connector

(to No. 11 Global CAN Junction Connector)

*b

to No. 9 Global CAN Junction Connector

Standard Resistance:

Tester Connection

Condition

Specified Condition

I264-3 (CANH) - I264-10 (CANL)

Cable disconnected from negative (-) auxiliary battery terminal

108 to 132 Ω

NG

REPAIR OR REPLACE CAN MAIN BUS LINES OR CONNECTOR (NO. 11 GLOBAL CAN JUNCTION CONNECTOR - NO. 9 GLOBAL CAN JUNCTION CONNECTOR)

OK

40.

CHECK FOR SHORT IN CAN BUS LINES (NO. 11 GLOBAL CAN JUNCTION CONNECTOR - POWER STEERING ECU ASSEMBLY)

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

*a

Front view of wire harness connector

(to No. 11 Global CAN Junction Connector)

*b

to Power Steering ECU Assembly

Standard Resistance:

Tester Connection

Condition

Specified Condition

I264-7 (CANH) - I264-14 (CANL)

Cable disconnected from negative (-) auxiliary battery terminal

108 to 132 Ω

NG

GO TO STEP 43

OK

41.

CHECK FOR SHORT IN CAN BUS LINES (NO. 11 GLOBAL CAN JUNCTION CONNECTOR - STEERING SENSOR)

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

*a

Front view of wire harness connector

(to No. 11 Global CAN Junction Connector)

*b

to Steering Sensor

Standard Resistance:

Tester Connection

Condition

Specified Condition

I264-5 (CANH) - I264-12 (CANL)

Cable disconnected from negative (-) auxiliary battery terminal

200 Ω or higher

NG

GO TO STEP 44

OK

42.

CHECK FOR SHORT IN CAN BUS LINES (NO. 11 GLOBAL CAN JUNCTION CONNECTOR - AIRBAG ECU ASSEMBLY)

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

*a

Front view of wire harness connector

(to No. 11 Global CAN Junction Connector)

*b

to Airbag ECU Assembly

Standard Resistance:

Tester Connection

Condition

Specified Condition

I264-1 (CANH) - I264-8 (CANL)

Cable disconnected from negative (-) auxiliary battery terminal

200 Ω or higher

OK

REPLACE NO. 11 GLOBAL CAN JUNCTION CONNECTOR

NG

GO TO STEP 45

43.

CHECK FOR SHORT IN CAN BUS LINES (NO. 11 GLOBAL CAN JUNCTION CONNECTOR - POWER STEERING ECU ASSEMBLY)

(a) Disconnect the I21 power steering ECU assembly connector.

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

*a

Front view of wire harness connector

(to No. 11 Global CAN Junction Connector)

*b

to Power Steering ECU Assembly

Standard Resistance:

Tester Connection

Condition

Specified Condition

I264-7 (CANH) - I264-14 (CANL)

Cable disconnected from negative (-) auxiliary battery terminal

1 MΩ or higher

OK

REPLACE POWER STEERING ECU ASSEMBLY

NG

REPAIR OR REPLACE CAN MAIN BUS LINES OR CONNECTOR (NO. 11 GLOBAL CAN JUNCTION CONNECTOR - POWER STEERING ECU ASSEMBLY)

44.

CHECK FOR SHORT IN CAN BUS LINES (NO. 11 GLOBAL CAN JUNCTION CONNECTOR - STEERING SENSOR)

(a) Disconnect the I229 steering sensor connector.

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

*a

Front view of wire harness connector

(to No. 11 Global CAN Junction Connector)

*b

to Steering Sensor

Standard Resistance:

Tester Connection

Condition

Specified Condition

I264-5 (CANH) - I264-12 (CANL)

Cable disconnected from negative (-) auxiliary battery terminal

1 MΩ or higher

OK

REPLACE STEERING SENSOR

NG

REPAIR OR REPLACE CAN BRANCH LINES OR CONNECTOR (NO. 11 GLOBAL CAN JUNCTION CONNECTOR - STEERING SENSOR)

45.

CHECK FOR SHORT IN CAN BUS LINES (NO. 11 GLOBAL CAN JUNCTION CONNECTOR - AIRBAG ECU ASSEMBLY)

(a) Disconnect the I47 airbag ECU assembly connector.

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

*a

Front view of wire harness connector

(to No. 11 Global CAN Junction Connector)

*b

to Airbag ECU Assembly

Standard Resistance:

Tester Connection

Condition

Specified Condition

I264-1 (CANH) - I264-8 (CANL)

Cable disconnected from negative (-) auxiliary battery terminal

1 MΩ or higher

OK

REPLACE AIRBAG ECU ASSEMBLY

NG

REPAIR OR REPLACE CAN BRANCH LINES OR CONNECTOR (NO. 11 GLOBAL CAN JUNCTION CONNECTOR - AIRBAG ECU ASSEMBLY)

46.

CHECK FOR SHORT IN CAN BUS LINES (NO. 9 GLOBAL CAN JUNCTION CONNECTOR - CENTRAL GATEWAY ECU (NETWORK GATEWAY ECU))

(a) Disconnect the I231 central gateway ECU (network gateway ECU) connector.

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

*a

Front view of wire harness connector

(to No. 9 Global CAN Junction Connector)

*b

to Central Gateway ECU (Network Gateway ECU)

Standard Resistance:

Tester Connection

Condition

Specified Condition

A193-8 (CANH) - A193-19 (CANL)

Cable disconnected from negative (-) auxiliary battery terminal

1 MΩ or higher

OK

REPLACE CENTRAL GATEWAY ECU (NETWORK GATEWAY ECU)

NG

REPAIR OR REPLACE CAN MAIN BUS LINES OR CONNECTOR (NO. 9 GLOBAL CAN JUNCTION CONNECTOR - CENTRAL GATEWAY ECU (NETWORK GATEWAY ECU))

47.

CHECK FOR OPEN IN CAN MAIN BUS LINES (CENTRAL GATEWAY ECU (NETWORK GATEWAY ECU))

(a) Disconnect the central gateway ECU (network gateway ECU) connector.

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

Standard Resistance:

Tester Connection

Condition

Specified Condition

I231-24 (CA2H) - I231-23 (CA2L)

Cable disconnected from negative (-) auxiliary battery terminal

108 to 132 Ω

*a

Front view of wire harness connector

(to Central Gateway ECU (Network Gateway ECU))

OK

REPLACE CENTRAL GATEWAY ECU (NETWORK GATEWAY ECU)

NG

48.

CHECK FOR OPEN IN CAN MAIN BUS LINES (NO. 9 GLOBAL CAN JUNCTION CONNECTOR - CENTRAL GATEWAY ECU (NETWORK GATEWAY ECU))

(a) Reconnect the I231 central gateway ECU (network gateway ECU) connector.

(b) Disconnect the No. 9 global CAN junction connector.

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

*a

Front view of wire harness connector

(to No. 9 Global CAN Junction Connector)

*b

to Central Gateway ECU (Network Gateway ECU)

Standard Resistance:

Tester Connection

Condition

Specified Condition

A193-8 (CANH) - A193-19 (CANL)

Cable disconnected from negative (-) auxiliary battery terminal

108 to 132 Ω

NG

REPAIR OR REPLACE CAN MAIN BUS LINES OR CONNECTOR (NO. 9 GLOBAL CAN JUNCTION CONNECTOR - CENTRAL GATEWAY ECU (NETWORK GATEWAY ECU))

OK

49.

CHECK FOR OPEN IN CAN MAIN BUS LINES (NO. 9 GLOBAL CAN JUNCTION CONNECTOR - NO. 11 GLOBAL CAN JUNCTION CONNECTOR)

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

*a

Front view of wire harness connector

(to No. 9 Global CAN Junction Connector)

*b

to No. 11 Global CAN Junction Connector

Standard Resistance:

Tester Connection

Condition

Specified Condition

A193-10 (CANH) - A193-21 (CANL)

Cable disconnected from negative (-) auxiliary battery terminal

108 to 132 Ω

OK

REPLACE NO. 9 GLOBAL CAN JUNCTION CONNECTOR

NG

50.

CHECK FOR OPEN IN CAN MAIN BUS LINES (NO. 11 GLOBAL CAN JUNCTION CONNECTOR - NO. 9 GLOBAL CAN JUNCTION CONNECTOR)

(a) Reconnect the A193 No. 9 global CAN junction connector.

(b) Disconnect the No. 11 global CAN junction connector.

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

*a

Front view of wire harness connector

(to No. 11 Global CAN Junction Connector)

*b

to No. 9 Global CAN Junction Connector

Standard Resistance:

Tester Connection

Condition

Specified Condition

I264-3 (CANH) - I264-10 (CANL)

Cable disconnected from negative (-) auxiliary battery terminal

108 to 132 Ω

NG

REPAIR OR REPLACE CAN MAIN BUS LINES OR CONNECTOR (NO. 11 GLOBAL CAN JUNCTION CONNECTOR - NO. 9 GLOBAL CAN JUNCTION CONNECTOR)

OK

51.

CHECK FOR OPEN IN CAN MAIN BUS LINES (NO. 11 GLOBAL CAN JUNCTION CONNECTOR - POWER STEERING ECU ASSEMBLY)

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

*a

Front view of wire harness connector

(to No. 11 Global CAN Junction Connector)

*b

to Power Steering ECU Assembly

Standard Resistance:

Tester Connection

Condition

Specified Condition

I264-7 (CANH) - I264-14 (CANL)

Cable disconnected from negative (-) auxiliary battery terminal

108 to 132 Ω

OK

REPLACE NO. 11 GLOBAL CAN JUNCTION CONNECTOR

NG

52.

CHECK FOR OPEN IN CAN MAIN BUS LINES (POWER STEERING ECU ASSEMBLY)

(a) Reconnect the I264 No. 11 global CAN junction connector.

(b) Disconnect the power steering ECU assembly connector.

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

Standard Resistance:

Tester Connection

Condition

Specified Condition

I21-7 (CANH) - I21-8 (CANL)

Cable disconnected from negative (-) auxiliary battery terminal

108 to 132 Ω

*a

Front view of wire harness connector

(to Power Steering ECU Assembly)

OK

REPLACE POWER STEERING ECU ASSEMBLY

NG

REPAIR OR REPLACE CAN MAIN BUS LINES OR CONNECTOR (POWER STEERING ECU ASSEMBLY - NO. 11 GLOBAL CAN JUNCTION CONNECTOR)

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