- CAN main bus line, CAN branch line or connector
- Central gateway ECU (network gateway ECU)
- Steering sensor
- Electric brake booster (brake booster with master cylinder assembly)
- Skid control ECU (brake actuator assembly)
- Airbag sensor assembly
- Power steering ECU with motor assembly
- No. 10 CAN junction connector
- No. 13 CAN junction connector
| Last Modified: 05-13-2024 | 6.11:8.1.0 | Doc ID: RM10000000259R7 |
| Model Year Start: 2023 | Model: Corolla | Prod Date Range: [09/2022 - 08/2023] |
| Title: NETWORKING: CAN COMMUNICATION SYSTEM (for HV Model): Check Bus 4 Line; 2023 MY Corolla Corolla HV [09/2022 - 08/2023] | ||
|
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. |
|
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
![2023 - 2025 MY Corolla Corolla HV [09/2022 - ]; NETWORKING: CAN COMMUNICATION SYSTEM (for HV Model): HOW TO PROCEED WITH TROUBLESHOOTING](/t3Portal/stylegraphics/info.gif)
- 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:
|
|
| NG |
|
|
|
2. |
CHECK FOR SHORT IN CAN BUS LINES |
|
(a) Measure the resistance according to the value(s) in the table below. Standard Resistance:
|
|
| NG |
|
|
|
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 |
|---|---|---|
|
I173-24 (CA2H) - I26-16 (BAT) |
Cable disconnected from negative (-) auxiliary battery terminal |
6 kΩ or higher |
|
I173-23 (CA2L) - I26-16 (BAT) |
| NG |
|
|
|
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 |
|---|---|---|
|
I173-24 (CA2H) - I26-4 (CG) |
Cable disconnected from negative (-) auxiliary battery terminal |
200 Ω or higher |
|
I173-23 (CA2L) - I26-4 (CG) |
| OK |
|
REPLACE CENTRAL GATEWAY ECU (NETWORK GATEWAY ECU)
|
|
|
5. |
CHECK FOR SHORT TO GND IN CAN BUS LINE (NO. 10 CAN JUNCTION CONNECTOR - CENTRAL GATEWAY ECU (NETWORK GATEWAY ECU)) |
(a) Disconnect the A142 No. 10 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. 10 CAN Junction Connector) |
*b |
to Central Gateway ECU (Network Gateway ECU) |
Standard Resistance:
|
Tester Connection |
Condition |
Specified Condition |
|---|---|---|
|
A142-4 (CANH) - I26-4 (CG) |
Cable disconnected from negative (-) auxiliary battery terminal |
200 Ω or higher |
|
A142-8 (CANL) - I26-4 (CG) |
| NG |
|
|
|
6. |
CHECK FOR SHORT TO GND IN CAN BUS LINE (NO. 10 CAN JUNCTION CONNECTOR - NO. 13 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. 10 CAN Junction Connector) |
*b |
to No. 13 CAN Junction Connector |
Standard Resistance:
|
Tester Connection |
Condition |
Specified Condition |
|---|---|---|
|
A142-3 (CANH) - I26-4 (CG) |
Cable disconnected from negative (-) auxiliary battery terminal |
200 Ω or higher |
|
A142-7 (CANL) - I26-4 (CG) |
| NG |
|
|
|
7. |
CHECK FOR SHORT TO GND IN CAN BUS LINE (NO. 10 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. 10 CAN Junction Connector) |
*b |
to Skid Control ECU (Brake Actuator Assembly) |
Standard Resistance:
|
Tester Connection |
Condition |
Specified Condition |
|---|---|---|
|
A142-2 (CANH) - I26-4 (CG) |
Cable disconnected from negative (-) auxiliary battery terminal |
200 Ω or higher |
|
A142-6 (CANL) - I26-4 (CG) |
| NG |
|
|
|
8. |
CHECK FOR SHORT TO GND IN CAN BUS LINE (NO. 10 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. 10 CAN Junction Connector) |
*b |
to Electric Brake Booster (Brake Booster with Master Cylinder Assembly) |
Standard Resistance:
|
Tester Connection |
Condition |
Specified Condition |
|---|---|---|
|
A142-1 (CANH) - I26-4 (CG) |
Cable disconnected from negative (-) auxiliary battery terminal |
200 Ω or higher |
|
A142-5 (CANL) - I26-4 (CG) |
| OK |
|
REPLACE NO. 10 CAN JUNCTION CONNECTOR |
| NG |
|
|
9. |
CHECK FOR SHORT TO GND IN CAN BUS LINE (NO. 10 CAN JUNCTION CONNECTOR - CENTRAL GATEWAY ECU (NETWORK GATEWAY ECU)) |
(a) Disconnect the I173 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. 10 CAN Junction Connector) |
*b |
to Central Gateway ECU (Network Gateway ECU) |
Standard Resistance:
|
Tester Connection |
Condition |
Specified Condition |
|---|---|---|
|
A142-4 (CANH) - I26-4 (CG) |
Cable disconnected from negative (-) auxiliary battery terminal |
200 Ω or higher |
|
A142-8 (CANL) - I26-4 (CG) |
| OK |
|
REPLACE CENTRAL GATEWAY ECU (NETWORK GATEWAY ECU)
|
| NG |
|
REPAIR OR REPLACE CAN MAIN BUS LINE OR CONNECTOR (NO. 10 CAN JUNCTION CONNECTOR - CENTRAL GATEWAY ECU (NETWORK GATEWAY ECU)) |
|
10. |
CHECK FOR SHORT TO GND IN CAN BUS LINE (NO. 10 CAN JUNCTION CONNECTOR - SKID CONTROL ECU (BRAKE ACTUATOR ASSEMBLY)) |
(a) Disconnect the A51 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. 10 CAN Junction Connector) |
*b |
to Skid Control ECU (Brake Actuator Assembly) |
Standard Resistance:
|
Tester Connection |
Condition |
Specified Condition |
|---|---|---|
|
A142-2 (CANH) - I26-4 (CG) |
Cable disconnected from negative (-) auxiliary battery terminal |
200 Ω or higher |
|
A142-6 (CANL) - I26-4 (CG) |
| OK |
|
| NG |
|
REPAIR OR REPLACE CAN BRANCH LINE OR CONNECTOR (NO. 10 CAN JUNCTION CONNECTOR - SKID CONTROL ECU (BRAKE ACTUATOR ASSEMBLY)) |
|
11. |
CHECK FOR SHORT TO GND IN CAN BUS LINE (NO. 10 CAN JUNCTION CONNECTOR - ELECTRIC BRAKE BOOSTER (BRAKE BOOSTER WITH MASTER CYLINDER ASSEMBLY)) |
(a) Disconnect the A157 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. 10 CAN Junction Connector) |
*b |
to Electric Brake Booster (Brake Booster with Master Cylinder Assembly) |
Standard Resistance:
|
Tester Connection |
Condition |
Specified Condition |
|---|---|---|
|
A142-1 (CANH) - I26-4 (CG) |
Cable disconnected from negative (-) auxiliary battery terminal |
200 Ω or higher |
|
A142-5 (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. 10 CAN JUNCTION CONNECTOR - ELECTRIC BRAKE BOOSTER (BRAKE BOOSTER WITH MASTER CYLINDER ASSEMBLY)) |
|
12. |
CHECK FOR SHORT TO GND IN CAN BUS LINE (NO. 13 CAN JUNCTION CONNECTOR - NO. 10 CAN JUNCTION CONNECTOR) |
(a) Disconnect the I187 No. 13 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. 13 CAN Junction Connector) |
*b |
to No. 10 CAN Junction Connector |
Standard Resistance:
|
Tester Connection |
Condition |
Specified Condition |
|---|---|---|
|
I187-2 (CANH) - I26-4 (CG) |
Cable disconnected from negative (-) auxiliary battery terminal |
200 Ω or higher |
|
I187-6 (CANL) - I26-4 (CG) |
| NG |
|
REPAIR OR REPLACE CAN MAIN BUS LINE OR CONNECTOR (NO. 13 CAN JUNCTION CONNECTOR - NO. 10 CAN JUNCTION CONNECTOR) |
|
|
13. |
CHECK FOR SHORT TO GND IN CAN BUS LINE (NO. 13 CAN JUNCTION CONNECTOR - AIRBAG SENSOR 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. 13 CAN Junction Connector) |
*b |
to Airbag Sensor Assembly |
Standard Resistance:
|
Tester Connection |
Condition |
Specified Condition |
|---|---|---|
|
I187-1 (CANH) - I26-4 (CG) |
Cable disconnected from negative (-) auxiliary battery terminal |
200 Ω or higher |
|
I187-5 (CANL) - I26-4 (CG) |
| NG |
|
|
|
14. |
CHECK FOR SHORT TO GND IN CAN BUS LINE (NO. 13 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. 13 CAN Junction Connector) |
*b |
to Steering Sensor |
Standard Resistance:
|
Tester Connection |
Condition |
Specified Condition |
|---|---|---|
|
I187-3 (CANH) - I26-4 (CG) |
Cable disconnected from negative (-) auxiliary battery terminal |
200 Ω or higher |
|
I187-7 (CANL) - I26-4 (CG) |
| NG |
|
|
|
15. |
CHECK FOR SHORT TO GND IN CAN BUS LINE (NO. 13 CAN JUNCTION CONNECTOR - POWER STEERING ECU WITH MOTOR 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. 13 CAN Junction Connector) |
*b |
to Power Steering ECU with Motor Assembly |
Standard Resistance:
|
Tester Connection |
Condition |
Specified Condition |
|---|---|---|
|
I187-4 (CANH) - I26-4 (CG) |
Cable disconnected from negative (-) auxiliary battery terminal |
200 Ω or higher |
|
I187-8 (CANL) - I26-4 (CG) |
| OK |
|
REPLACE NO. 13 CAN JUNCTION CONNECTOR |
| NG |
|
|
16. |
CHECK FOR SHORT TO GND IN CAN BUS LINE (NO. 13 CAN JUNCTION CONNECTOR - AIRBAG SENSOR ASSEMBLY) |
(a) Disconnect the I47 airbag sensor 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. 13 CAN Junction Connector) |
*b |
to Airbag Sensor Assembly |
Standard Resistance:
|
Tester Connection |
Condition |
Specified Condition |
|---|---|---|
|
I187-1 (CANH) - I26-4 (CG) |
Cable disconnected from negative (-) auxiliary battery terminal |
200 Ω or higher |
|
I187-5 (CANL) - I26-4 (CG) |
| OK |
|
REPLACE AIRBAG SENSOR ASSEMBLY
|
| NG |
|
REPAIR OR REPLACE CAN BRANCH LINE OR CONNECTOR (NO. 13 CAN JUNCTION CONNECTOR - AIRBAG SENSOR ASSEMBLY) |
|
17. |
CHECK FOR SHORT TO GND IN CAN BUS LINE (NO. 13 CAN JUNCTION CONNECTOR - STEERING SENSOR) |
(a) Disconnect the I211 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. 13 CAN Junction Connector) |
*b |
to Steering Sensor |
Standard Resistance:
|
Tester Connection |
Condition |
Specified Condition |
|---|---|---|
|
I187-3 (CANH) - I26-4 (CG) |
Cable disconnected from negative (-) auxiliary battery terminal |
200 Ω or higher |
|
I187-7 (CANL) - I26-4 (CG) |
| OK |
|
REPLACE STEERING SENSOR
|
| NG |
|
REPAIR OR REPLACE CAN BRANCH LINE OR CONNECTOR (NO. 13 CAN JUNCTION CONNECTOR - STEERING SENSOR) |
|
18. |
CHECK FOR SHORT TO GND IN CAN BUS LINE (NO. 13 CAN JUNCTION CONNECTOR - POWER STEERING ECU WITH MOTOR ASSEMBLY) |
(a) Disconnect the I21 power steering ECU with motor 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. 13 CAN Junction Connector) |
*b |
to Power Steering ECU with Motor Assembly |
Standard Resistance:
|
Tester Connection |
Condition |
Specified Condition |
|---|---|---|
|
I187-4 (CANH) - I26-4 (CG) |
Cable disconnected from negative (-) auxiliary battery terminal |
200 Ω or higher |
|
I187-8 (CANL) - I26-4 (CG) |
| OK |
|
REPLACE POWER STEERING ECU WITH MOTOR ASSEMBLY
|
| NG |
|
REPAIR OR REPLACE CAN MAIN BUS LINE OR CONNECTOR (NO. 13 CAN JUNCTION CONNECTOR - POWER STEERING ECU WITH MOTOR ASSEMBLY) |
|
19. |
CHECK FOR SHORT TO +B IN CAN BUS LINE (NO. 10 CAN JUNCTION CONNECTOR - CENTRAL GATEWAY ECU (NETWORK GATEWAY ECU)) |
(a) Disconnect the A142 No. 10 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. 10 CAN Junction Connector) |
*b |
to Central Gateway ECU (Network Gateway ECU) |
Standard Resistance:
|
Tester Connection |
Condition |
Specified Condition |
|---|---|---|
|
A142-4 (CANH) - I26-16 (BAT) |
Cable disconnected from negative (-) auxiliary battery terminal |
6 kΩ or higher |
|
A142-8 (CANL) - I26-16 (BAT) |
| NG |
|
|
|
20. |
CHECK FOR SHORT TO +B IN CAN BUS LINE (NO. 10 CAN JUNCTION CONNECTOR - NO. 13 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. 10 CAN Junction Connector) |
*b |
to No. 13 CAN Junction Connector |
Standard Resistance:
|
Tester Connection |
Condition |
Specified Condition |
|---|---|---|
|
A142-3 (CANH) - I26-16 (BAT) |
Cable disconnected from negative (-) auxiliary battery terminal |
6 kΩ or higher |
|
A142-7 (CANL) - I26-16 (BAT) |
| NG |
|
|
|
21. |
CHECK FOR SHORT TO +B IN CAN BUS LINE (NO. 10 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. 10 CAN Junction Connector) |
*b |
to Skid Control ECU (Brake Actuator Assembly) |
Standard Resistance:
|
Tester Connection |
Condition |
Specified Condition |
|---|---|---|
|
A142-2 (CANH) - I26-16 (BAT) |
Cable disconnected from negative (-) auxiliary battery terminal |
6 kΩ or higher |
|
A142-6 (CANL) - I26-16 (BAT) |
| NG |
|
|
|
22. |
CHECK FOR SHORT TO +B IN CAN BUS LINE (NO. 10 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. 10 CAN Junction Connector) |
*b |
to Electric Brake Booster (Brake Booster with Master Cylinder Assembly) |
Standard Resistance:
|
Tester Connection |
Condition |
Specified Condition |
|---|---|---|
|
A142-1 (CANH) - I26-16 (BAT) |
Cable disconnected from negative (-) auxiliary battery terminal |
6 kΩ or higher |
|
A142-5 (CANL) - I26-16 (BAT) |
| OK |
|
REPLACE NO. 10 CAN JUNCTION CONNECTOR |
| NG |
|
|
23. |
CHECK FOR SHORT TO +B IN CAN BUS LINE (NO. 10 CAN JUNCTION CONNECTOR - CENTRAL GATEWAY ECU (NETWORK GATEWAY ECU)) |
(a) Disconnect the I173 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. 10 CAN Junction Connector) |
*b |
to Central Gateway ECU (Network Gateway ECU) |
Standard Resistance:
|
Tester Connection |
Condition |
Specified Condition |
|---|---|---|
|
A142-4 (CANH) - I26-16 (BAT) |
Cable disconnected from negative (-) auxiliary battery terminal |
6 kΩ or higher |
|
A142-8 (CANL) - I26-16 (BAT) |
| OK |
|
REPLACE CENTRAL GATEWAY ECU (NETWORK GATEWAY ECU)
|
| NG |
|
REPAIR OR REPLACE CAN MAIN BUS LINE OR CONNECTOR (NO. 10 CAN JUNCTION CONNECTOR - CENTRAL GATEWAY ECU (NETWORK GATEWAY ECU)) |
|
24. |
CHECK FOR SHORT TO +B IN CAN BUS LINE (NO. 10 CAN JUNCTION CONNECTOR - SKID CONTROL ECU (BRAKE ACTUATOR ASSEMBLY)) |
(a) Disconnect the A51 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. 10 CAN Junction Connector) |
*b |
to Skid Control ECU (Brake Actuator Assembly) |
Standard Resistance:
|
Tester Connection |
Condition |
Specified Condition |
|---|---|---|
|
A142-2 (CANH) - I26-16 (BAT) |
Cable disconnected from negative (-) auxiliary battery terminal |
6 kΩ or higher |
|
A142-6 (CANL) - I26-16 (BAT) |
| OK |
|
| NG |
|
REPAIR OR REPLACE CAN BRANCH LINE OR CONNECTOR (NO. 10 CAN JUNCTION CONNECTOR - SKID CONTROL ECU (BRAKE ACTUATOR ASSEMBLY)) |
|
25. |
CHECK FOR SHORT TO +B IN CAN BUS LINE (NO. 10 CAN JUNCTION CONNECTOR - ELECTRIC BRAKE BOOSTER (BRAKE BOOSTER WITH MASTER CYLINDER ASSEMBLY)) |
(a) Disconnect the A157 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. 10 CAN Junction Connector) |
*b |
to Electric Brake Booster (Brake Booster with Master Cylinder Assembly) |
Standard Resistance:
|
Tester Connection |
Condition |
Specified Condition |
|---|---|---|
|
A142-1 (CANH) - I26-16 (BAT) |
Cable disconnected from negative (-) auxiliary battery terminal |
6 kΩ or higher |
|
A142-5 (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. 10 CAN JUNCTION CONNECTOR - ELECTRIC BRAKE BOOSTER (BRAKE BOOSTER WITH MASTER CYLINDER ASSEMBLY)) |
|
26. |
CHECK FOR SHORT TO +B IN CAN BUS LINE (NO. 13 CAN JUNCTION CONNECTOR - NO. 10 CAN JUNCTION CONNECTOR) |
(a) Disconnect the I187 No. 13 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. 13 CAN Junction Connector) |
*b |
to No. 10 CAN Junction Connector |
Standard Resistance:
|
Tester Connection |
Condition |
Specified Condition |
|---|---|---|
|
I187-2 (CANH) - I26-16 (BAT) |
Cable disconnected from negative (-) auxiliary battery terminal |
6 kΩ or higher |
|
I187-6 (CANL) - I26-16 (BAT) |
| NG |
|
REPAIR OR REPLACE CAN MAIN BUS LINE OR CONNECTOR (NO. 13 CAN JUNCTION CONNECTOR - NO. 10 CAN JUNCTION CONNECTOR) |
|
|
27. |
CHECK FOR SHORT TO +B IN CAN BUS LINE (NO. 13 CAN JUNCTION CONNECTOR - AIRBAG SENSOR 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. 13 CAN Junction Connector) |
*b |
to Airbag Sensor Assembly |
Standard Resistance:
|
Tester Connection |
Condition |
Specified Condition |
|---|---|---|
|
I187-1 (CANH) - I26-16 (BAT) |
Cable disconnected from negative (-) auxiliary battery terminal |
6 kΩ or higher |
|
I187-5 (CANL) - I26-16 (BAT) |
| NG |
|
|
|
28. |
CHECK FOR SHORT TO +B IN CAN BUS LINE (NO. 13 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. 13 CAN Junction Connector) |
*b |
to Steering Sensor |
Standard Resistance:
|
Tester Connection |
Condition |
Specified Condition |
|---|---|---|
|
I187-3 (CANH) - I26-16 (BAT) |
Cable disconnected from negative (-) auxiliary battery terminal |
6 kΩ or higher |
|
I187-7 (CANL) - I26-16 (BAT) |
| NG |
|
|
|
29. |
CHECK FOR SHORT TO +B IN CAN BUS LINE (NO. 13 CAN JUNCTION CONNECTOR - POWER STEERING ECU WITH MOTOR 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. 13 CAN Junction Connector) |
*b |
to Power Steering ECU with Motor Assembly |
Standard Resistance:
|
Tester Connection |
Condition |
Specified Condition |
|---|---|---|
|
I187-4 (CANH) - I26-16 (BAT) |
Cable disconnected from negative (-) auxiliary battery terminal |
6 kΩ or higher |
|
I187-8 (CANL) - I26-16 (BAT) |
| OK |
|
REPLACE NO. 13 CAN JUNCTION CONNECTOR |
| NG |
|
|
30. |
CHECK FOR SHORT TO +B IN CAN BUS LINE (NO. 13 CAN JUNCTION CONNECTOR - AIRBAG SENSOR ASSEMBLY) |
(a) Disconnect the I47 airbag sensor 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. 13 CAN Junction Connector) |
*b |
to Airbag Sensor Assembly |
Standard Resistance:
|
Tester Connection |
Condition |
Specified Condition |
|---|---|---|
|
I187-1 (CANH) - I26-16 (BAT) |
Cable disconnected from negative (-) auxiliary battery terminal |
6 kΩ or higher |
|
I187-5 (CANL) - I26-16 (BAT) |
| OK |
|
REPLACE AIRBAG SENSOR ASSEMBLY
|
| NG |
|
REPAIR OR REPLACE CAN BRANCH LINE OR CONNECTOR (NO. 13 CAN JUNCTION CONNECTOR - AIRBAG SENSOR ASSEMBLY) |
|
31. |
CHECK FOR SHORT TO +B IN CAN BUS LINE (NO. 13 CAN JUNCTION CONNECTOR - STEERING SENSOR) |
(a) Disconnect the I211 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. 13 CAN Junction Connector) |
*b |
to Steering Sensor |
Standard Resistance:
|
Tester Connection |
Condition |
Specified Condition |
|---|---|---|
|
I187-3 (CANH) - I26-16 (BAT) |
Cable disconnected from negative (-) auxiliary battery terminal |
6 kΩ or higher |
|
I187-7 (CANL) - I26-16 (BAT) |
| OK |
|
REPLACE STEERING SENSOR
|
| NG |
|
REPAIR OR REPLACE CAN BRANCH LINE OR CONNECTOR (NO. 13 CAN JUNCTION CONNECTOR - STEERING SENSOR) |
|
32. |
CHECK FOR SHORT TO +B IN CAN BUS LINE (NO. 13 CAN JUNCTION CONNECTOR - POWER STEERING ECU WITH MOTOR ASSEMBLY) |
(a) Disconnect the I21 power steering ECU with motor 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. 13 CAN Junction Connector) |
*b |
to Power Steering ECU with Motor Assembly |
Standard Resistance:
|
Tester Connection |
Condition |
Specified Condition |
|---|---|---|
|
I187-4 (CANH) - I26-16 (BAT) |
Cable disconnected from negative (-) auxiliary battery terminal |
6 kΩ or higher |
|
I187-8 (CANL) - I26-16 (BAT) |
| OK |
|
REPLACE POWER STEERING ECU WITH MOTOR ASSEMBLY
|
| NG |
|
REPAIR OR REPLACE CAN MAIN BUS LINE OR CONNECTOR (NO. 13 CAN JUNCTION CONNECTOR - POWER STEERING ECU WITH MOTOR ASSEMBLY) |
|
33. |
CHECK FOR SHORT IN CAN BUS LINES (NO. 10 CAN JUNCTION CONNECTOR - CENTRAL GATEWAY ECU (NETWORK GATEWAY ECU)) |
(a) Disconnect the A142 No. 10 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. 10 CAN Junction Connector) |
*b |
to Central Gateway ECU (Network Gateway ECU) |
Standard Resistance:
|
Tester Connection |
Condition |
Specified Condition |
|---|---|---|
|
A142-4 (CANH) - A142-8 (CANL) |
Cable disconnected from negative (-) auxiliary battery terminal |
108 to 132 Ω |
| NG |
|
|
|
34. |
CHECK FOR SHORT IN CAN BUS LINES (NO. 10 CAN JUNCTION CONNECTOR - NO. 13 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. 10 CAN Junction Connector) |
*b |
to No. 13 CAN Junction Connector |
Standard Resistance:
|
Tester Connection |
Condition |
Specified Condition |
|---|---|---|
|
A142-3 (CANH) - A142-7 (CANL) |
Cable disconnected from negative (-) auxiliary battery terminal |
108 to 132 Ω |
| NG |
|
|
|
35. |
CHECK FOR SHORT IN CAN BUS LINES (NO. 10 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. 10 CAN Junction Connector) |
*b |
to Skid Control ECU (Brake Actuator Assembly) |
Standard Resistance:
|
Tester Connection |
Condition |
Specified Condition |
|---|---|---|
|
A142-2 (CANH) - A142-6 (CANL) |
Cable disconnected from negative (-) auxiliary battery terminal |
200 Ω or higher |
| NG |
|
|
|
36. |
CHECK FOR SHORT IN CAN BUS LINES (NO. 10 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. 10 CAN Junction Connector) |
*b |
to Electric Brake Booster (Brake Booster with Master Cylinder Assembly) |
Standard Resistance:
|
Tester Connection |
Condition |
Specified Condition |
|---|---|---|
|
A142-1 (CANH) - A142-5 (CANL) |
Cable disconnected from negative (-) auxiliary battery terminal |
200 Ω or higher |
| OK |
|
REPLACE NO. 10 CAN JUNCTION CONNECTOR |
| NG |
|
|
37. |
CHECK FOR SHORT IN CAN BUS LINES (NO. 10 CAN JUNCTION CONNECTOR - CENTRAL GATEWAY ECU (NETWORK GATEWAY ECU)) |
(a) Disconnect the I173 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. 10 CAN Junction Connector) |
*b |
to Central Gateway ECU (Network Gateway ECU) |
Standard Resistance:
|
Tester Connection |
Condition |
Specified Condition |
|---|---|---|
|
A142-4 (CANH) - A142-8 (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. 10 CAN JUNCTION CONNECTOR - CENTRAL GATEWAY ECU (NETWORK GATEWAY ECU)) |
|
38. |
CHECK FOR SHORT IN CAN BUS LINES (NO. 10 CAN JUNCTION CONNECTOR - SKID CONTROL ECU (BRAKE ACTUATOR ASSEMBLY)) |
(a) Disconnect the A51 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. 10 CAN Junction Connector) |
*b |
to Skid Control ECU (Brake Actuator Assembly) |
Standard Resistance:
|
Tester Connection |
Condition |
Specified Condition |
|---|---|---|
|
A142-2 (CANH) - A142-6 (CANL) |
Cable disconnected from negative (-) auxiliary battery terminal |
1 MΩ or higher |
| OK |
|
| NG |
|
REPAIR OR REPLACE CAN BRANCH LINES OR CONNECTOR (NO. 10 CAN JUNCTION CONNECTOR - SKID CONTROL ECU (BRAKE ACTUATOR ASSEMBLY)) |
|
39. |
CHECK FOR SHORT IN CAN BUS LINES (NO. 10 CAN JUNCTION CONNECTOR - ELECTRIC BRAKE BOOSTER (BRAKE BOOSTER WITH MASTER CYLINDER ASSEMBLY)) |
(a) Disconnect the A157 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. 10 CAN Junction Connector) |
*b |
to Electric Brake Booster (Brake Booster with Master Cylinder Assembly) |
Standard Resistance:
|
Tester Connection |
Condition |
Specified Condition |
|---|---|---|
|
A142-1 (CANH) - A142-5 (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. 10 CAN JUNCTION CONNECTOR - ELECTRIC BRAKE BOOSTER (BRAKE BOOSTER WITH MASTER CYLINDER ASSEMBLY)) |
|
40. |
CHECK FOR SHORT IN CAN BUS LINES (NO. 13 CAN JUNCTION CONNECTOR - NO. 10 CAN JUNCTION CONNECTOR) |
(a) Reconnect the A142 No. 10 CAN junction connector.
(b) Disconnect the I187 No. 13 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. 13 CAN Junction Connector) |
*b |
to No. 10 CAN Junction Connector |
Standard Resistance:
|
Tester Connection |
Condition |
Specified Condition |
|---|---|---|
|
I187-2 (CANH) - I187-6 (CANL) |
Cable disconnected from negative (-) auxiliary battery terminal |
108 to 132 Ω |
| NG |
|
REPAIR OR REPLACE CAN MAIN BUS LINES OR CONNECTOR (NO. 13 CAN JUNCTION CONNECTOR - NO. 10 CAN JUNCTION CONNECTOR) |
|
|
41. |
CHECK FOR SHORT IN CAN BUS LINES (NO. 13 CAN JUNCTION CONNECTOR - AIRBAG SENSOR ASSEMBLY) |
(a) Measure the resistance according to the value(s) in the table below.
|
*a |
Front view of wire harness connector (to No. 13 CAN Junction Connector) |
*b |
to Airbag Sensor Assembly |
Standard Resistance:
|
Tester Connection |
Condition |
Specified Condition |
|---|---|---|
|
I187-1 (CANH) - I187-5 (CANL) |
Cable disconnected from negative (-) auxiliary battery terminal |
200 Ω or higher |
| NG |
|
|
|
42. |
CHECK FOR SHORT IN CAN BUS LINES (NO. 13 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. 13 CAN Junction Connector) |
*b |
to Steering Sensor |
Standard Resistance:
|
Tester Connection |
Condition |
Specified Condition |
|---|---|---|
|
I187-3 (CANH) - I187-7 (CANL) |
Cable disconnected from negative (-) auxiliary battery terminal |
200 Ω or higher |
| NG |
|
|
|
43. |
CHECK FOR SHORT IN CAN BUS LINES (NO. 13 CAN JUNCTION CONNECTOR - POWER STEERING ECU WITH MOTOR ASSEMBLY) |
(a) Measure the resistance according to the value(s) in the table below.
|
*a |
Front view of wire harness connector (to No. 13 CAN Junction Connector) |
*b |
to Power Steering ECU with Motor Assembly |
Standard Resistance:
|
Tester Connection |
Condition |
Specified Condition |
|---|---|---|
|
I187-4 (CANH) - I187-8 (CANL) |
Cable disconnected from negative (-) auxiliary battery terminal |
108 to 132 Ω |
| OK |
|
REPLACE NO. 13 CAN JUNCTION CONNECTOR |
| NG |
|
|
44. |
CHECK FOR SHORT IN CAN BUS LINES (NO. 13 CAN JUNCTION CONNECTOR - AIRBAG SENSOR ASSEMBLY) |
(a) Disconnect the I47 airbag sensor assembly connector.
(b) Measure the resistance according to the value(s) in the table below.
|
*a |
Front view of wire harness connector (to No. 13 CAN Junction Connector) |
*b |
to Airbag Sensor Assembly |
Standard Resistance:
|
Tester Connection |
Condition |
Specified Condition |
|---|---|---|
|
I187-1 (CANH) - I187-5 (CANL) |
Cable disconnected from negative (-) auxiliary battery terminal |
1 MΩ or higher |
| OK |
|
REPLACE AIRBAG SENSOR ASSEMBLY
|
| NG |
|
REPAIR OR REPLACE CAN BRANCH LINES OR CONNECTOR (NO. 13 CAN JUNCTION CONNECTOR - AIRBAG SENSOR ASSEMBLY) |
|
45. |
CHECK FOR SHORT IN CAN BUS LINES (NO. 13 CAN JUNCTION CONNECTOR - STEERING SENSOR) |
(a) Disconnect the I211 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. 13 CAN Junction Connector) |
*b |
to Steering Sensor |
Standard Resistance:
|
Tester Connection |
Condition |
Specified Condition |
|---|---|---|
|
I187-3 (CANH) - I187-7 (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. 13 CAN JUNCTION CONNECTOR - STEERING SENSOR) |
|
46. |
CHECK FOR SHORT IN CAN BUS LINES (NO. 13 CAN JUNCTION CONNECTOR - POWER STEERING ECU WITH MOTOR ASSEMBLY) |
(a) Disconnect the I21 power steering ECU with motor assembly connector.
(b) Measure the resistance according to the value(s) in the table below.
|
*a |
Front view of wire harness connector (to No. 13 CAN Junction Connector) |
*b |
to Power Steering ECU with Motor Assembly |
Standard Resistance:
|
Tester Connection |
Condition |
Specified Condition |
|---|---|---|
|
I187-4 (CANH) - I187-8 (CANL) |
Cable disconnected from negative (-) auxiliary battery terminal |
1 MΩ or higher |
| OK |
|
REPLACE POWER STEERING ECU WITH MOTOR ASSEMBLY
|
| NG |
|
REPAIR OR REPLACE CAN MAIN BUS LINES OR CONNECTOR (NO. 13 CAN JUNCTION CONNECTOR - POWER STEERING ECU WITH MOTOR ASSEMBLY) |
|
47. |
CHECK FOR OPEN IN CAN MAIN BUS LINES (CENTRAL GATEWAY ECU (NETWORK GATEWAY ECU)) |
(a) Disconnect the I173 central gateway ECU (network gateway ECU) connector.
|
(b) Measure the resistance according to the value(s) in the table below. Standard Resistance:
|
|
| OK |
|
REPLACE CENTRAL GATEWAY ECU (NETWORK GATEWAY ECU)
|
|
|
48. |
CHECK FOR OPEN IN CAN MAIN BUS LINES (NO. 10 CAN JUNCTION CONNECTOR - CENTRAL GATEWAY ECU (NETWORK GATEWAY ECU)) |
(a) Reconnect the I173 central gateway ECU (network gateway ECU) connector.
(b) Disconnect the A142 No. 10 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. 10 CAN Junction Connector) |
*b |
to Central Gateway ECU (Network Gateway ECU) |
Standard Resistance:
|
Tester Connection |
Condition |
Specified Condition |
|---|---|---|
|
A142-4 (CANH) - A142-8 (CANL) |
Cable disconnected from negative (-) auxiliary battery terminal |
108 to 132 Ω |
| NG |
|
REPAIR OR REPLACE CAN MAIN BUS LINES OR CONNECTOR (NO. 10 CAN JUNCTION CONNECTOR - CENTRAL GATEWAY ECU (NETWORK GATEWAY ECU)) |
|
|
49. |
CHECK FOR OPEN IN CAN MAIN BUS LINES (NO. 10 CAN JUNCTION CONNECTOR - NO. 13 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. 10 CAN Junction Connector) |
*b |
to No. 13 CAN Junction Connector |
Standard Resistance:
|
Tester Connection |
Condition |
Specified Condition |
|---|---|---|
|
A142-3 (CANH) - A142-7 (CANL) |
Cable disconnected from negative (-) auxiliary battery terminal |
108 to 132 Ω |
| OK |
|
REPLACE NO. 10 CAN JUNCTION CONNECTOR |
|
|
50. |
CHECK FOR OPEN IN CAN MAIN BUS LINES (NO. 13 CAN JUNCTION CONNECTOR - NO. 10 CAN JUNCTION CONNECTOR) |
(a) Reconnect the A142 No. 10 CAN junction connector.
(b) Disconnect the I187 No. 13 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. 13 CAN Junction Connector) |
*b |
to No. 10 CAN Junction Connector |
Standard Resistance:
|
Tester Connection |
Condition |
Specified Condition |
|---|---|---|
|
I187-2 (CANH) - I187-6 (CANL) |
Cable disconnected from negative (-) auxiliary battery terminal |
108 to 132 Ω |
| NG |
|
REPAIR OR REPLACE CAN MAIN BUS LINES OR CONNECTOR (NO. 13 CAN JUNCTION CONNECTOR - NO. 10 CAN JUNCTION CONNECTOR) |
|
|
51. |
CHECK FOR OPEN IN CAN MAIN BUS LINES (NO. 13 CAN JUNCTION CONNECTOR - POWER STEERING ECU WITH MOTOR ASSEMBLY) |
(a) Measure the resistance according to the value(s) in the table below.
|
*a |
Front view of wire harness connector (to No. 13 CAN Junction Connector) |
*b |
to Power Steering ECU with Motor Assembly |
Standard Resistance:
|
Tester Connection |
Condition |
Specified Condition |
|---|---|---|
|
I187-4 (CANH) - I187-8 (CANL) |
Cable disconnected from negative (-) auxiliary battery terminal |
108 to 132 Ω |
| OK |
|
REPLACE NO. 13 CAN JUNCTION CONNECTOR |
|
|
52. |
CHECK FOR OPEN IN CAN MAIN BUS LINES (POWER STEERING ECU WITH MOTOR ASSEMBLY) |
(a) Reconnect the I187 No. 13 CAN junction connector.
(b) Disconnect the I21 power steering ECU with motor assembly connector.
|
(c) Measure the resistance according to the value(s) in the table below. Standard Resistance:
|
|
| OK |
|
REPLACE POWER STEERING ECU WITH MOTOR ASSEMBLY
|
| NG |
|
REPAIR OR REPLACE CAN MAIN BUS LINES OR CONNECTOR (POWER STEERING ECU WITH MOTOR ASSEMBLY - NO. 13 CAN JUNCTION CONNECTOR) |
|
|