Toyota Corolla Cross: Check Bus 6 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
.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 turning the ignition switch off, waiting time may be required before
disconnecting the cable from 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 | .gif) |
GO TO STEP 32 |
|
.gif)
|
2. |
CHECK FOR SHORT IN CAN BUS LINES |
|
(a) Measure the resistance according to the value(s) in the table below. Standard Resistance:
|
|
| NG | |
GO TO STEP 23 |
|
|
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 |
|---|---|---|
|
I231-31 (CA7H) - I26-16 (BAT) |
Cable disconnected from negative (-) auxiliary battery terminal |
6 kΩ or higher |
|
I231-32 (CA7L) - I26-16 (BAT) |
| NG | |
GO TO STEP 14 |
|
|
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 |
|---|---|---|
|
I231-31 (CA7H) - I26-4 (CG) |
Cable disconnected from negative (-) auxiliary battery terminal |
200 Ω or higher |
|
I231-32 (CA7L) - I26-4 (CG) |
| OK | |
REPLACE CENTRAL GATEWAY ECU (NETWORK GATEWAY ECU) |
|
|
5. |
CHECK FOR SHORT TO GND IN CAN BUS LINE (NO. 22 GLOBAL CAN JUNCTION CONNECTOR - CENTRAL GATEWAY ECU (NETWORK GATEWAY ECU)) |
(a) Disconnect the No. 22 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. 22 Global CAN Junction Connector) |
*b |
to Central Gateway ECU (Network Gateway ECU) |
Standard Resistance:
|
Tester Connection |
Condition |
Specified Condition |
|---|---|---|
|
O227-8 (CANH) - I26-4 (CG) |
Cable disconnected from negative (-) auxiliary battery terminal |
200 Ω or higher |
|
O227-19 (CANL) - I26-4 (CG) |
| NG | |
GO TO STEP 13 |
|
|
6. |
CHECK FOR SHORT TO GND IN CAN BUS LINE (NO. 22 GLOBAL CAN JUNCTION CONNECTOR - CENTRAL GATEWAY ECU (NETWORK GATEWAY ECU)) |
(a) Measure the resistance according to the value(s) in the table below.
|
*1 |
DLC3 |
- |
- |
|
*a |
Front view of wire harness connector (to No. 22 Global CAN Junction Connector) |
*b |
to Central Gateway ECU (Network Gateway ECU) |
Standard Resistance:
|
Tester Connection |
Condition |
Specified Condition |
|---|---|---|
|
O227-9 (CANH) - I26-4 (CG) |
Cable disconnected from negative (-) auxiliary battery terminal |
200 Ω or higher |
|
O227-20 (CANL) - I26-4 (CG) |
| NG | |
GO TO STEP 12 |
|
|
7. |
CHECK VEHICLE TYPE |
(a) Check vehicle type.
|
Result |
Proceed to |
|---|---|
|
for AWD |
A |
|
for 2WD |
B |
| B | |
GO TO STEP 9 |
|
|
8. |
CHECK FOR SHORT TO GND IN CAN BUS LINE (NO. 22 GLOBAL CAN JUNCTION CONNECTOR - 4WD 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. 22 Global CAN Junction Connector) |
*b |
to 4WD ECU Assembly |
Standard Resistance:
|
Tester Connection |
Condition |
Specified Condition |
|---|---|---|
|
O227-7 (CANH) - I26-4 (CG) |
Cable disconnected from negative (-) auxiliary battery terminal |
200 Ω or higher |
|
O227-18 (CANL) - I26-4 (CG) |
| NG | |
GO TO STEP 10 |
|
|
9. |
CHECK FOR SHORT TO GND IN CAN BUS LINE (NO. 22 GLOBAL CAN JUNCTION CONNECTOR - TIRE PRESSURE WARNING ECU AND RECEIVER) |
(a) Measure the resistance according to the value(s) in the table below.
|
*1 |
DLC3 |
- |
- |
|
*a |
Front view of wire harness connector (to No. 22 Global CAN Junction Connector) |
*b |
to Tire Pressure Warning ECU and Receiver |
Standard Resistance:
|
Tester Connection |
Condition |
Specified Condition |
|---|---|---|
|
O227-10 (CANH) - I26-4 (CG) |
Cable disconnected from negative (-) auxiliary battery terminal |
200 Ω or higher |
|
O227-21 (CANL) - I26-4 (CG) |
| OK | |
REPLACE NO. 22 GLOBAL CAN JUNCTION CONNECTOR |
| NG | |
GO TO STEP 11 |
|
10. |
CHECK FOR SHORT TO GND IN CAN BUS LINE (NO. 22 GLOBAL CAN JUNCTION CONNECTOR - 4WD ECU ASSEMBLY) |
(a) Disconnect the O201 4WD 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. 22 Global CAN Junction Connector) |
*b |
to 4WD ECU Assembly |
Standard Resistance:
|
Tester Connection |
Condition |
Specified Condition |
|---|---|---|
|
O227-7 (CANH) - I26-4 (CG) |
Cable disconnected from negative (-) auxiliary battery terminal |
200 Ω or higher |
|
O227-18 (CANL) - I26-4 (CG) |
| OK | |
REPLACE 4WD ECU ASSEMBLY |
| NG | |
REPAIR OR REPLACE CAN BRANCH LINE OR CONNECTOR (NO. 22 GLOBAL CAN JUNCTION CONNECTOR - 4WD ECU ASSEMBLY) |
|
11. |
CHECK FOR SHORT TO GND IN CAN BUS LINE (NO. 22 GLOBAL CAN JUNCTION CONNECTOR - TIRE PRESSURE WARNING ECU AND RECEIVER) |
(a) Disconnect the O209*1, O221*2 tire pressure warning ECU and receiver connector.
- *1: w/ Smart Key System
- *2: w/o Smart Key System
(b) Measure the resistance according to the value(s) in the table below.
|
*1 |
DLC3 |
- |
- |
|
*a |
Front view of wire harness connector (to No. 22 Global CAN Junction Connector) |
*b |
to Tire Pressure Warning ECU and Receiver |
Standard Resistance:
|
Tester Connection |
Condition |
Specified Condition |
|---|---|---|
|
O227-10 (CANH) - I26-4 (CG) |
Cable disconnected from negative (-) auxiliary battery terminal |
200 Ω or higher |
|
O227-21 (CANL) - I26-4 (CG) |
| OK | |
REPLACE TIRE PRESSURE WARNING ECU AND RECEIVER |
| NG | |
REPAIR OR REPLACE CAN BRANCH LINE OR CONNECTOR (NO. 22 GLOBAL CAN JUNCTION CONNECTOR - TIRE PRESSURE WARNING ECU AND RECEIVER) |
|
12. |
CHECK FOR SHORT TO GND IN CAN BUS LINE (NO. 22 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. 22 Global CAN Junction Connector) |
*b |
to Central Gateway ECU (Network Gateway ECU) |
Standard Resistance:
|
Tester Connection |
Condition |
Specified Condition |
|---|---|---|
|
O227-9 (CANH) - I26-4 (CG) |
Cable disconnected from negative (-) auxiliary battery terminal |
200 Ω or higher |
|
O227-20 (CANL) - I26-4 (CG) |
| OK | |
REPLACE CENTRAL GATEWAY ECU (NETWORK GATEWAY ECU) |
| NG | |
REPAIR OR REPLACE CAN MAIN BUS LINE OR CONNECTOR (NO. 22 GLOBAL CAN JUNCTION CONNECTOR - CENTRAL GATEWAY ECU (NETWORK GATEWAY ECU)) |
|
13. |
CHECK FOR SHORT TO GND IN CAN BUS LINE (NO. 22 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. 22 Global CAN Junction Connector) |
*b |
to Central Gateway ECU (Network Gateway ECU) |
Standard Resistance:
|
Tester Connection |
Condition |
Specified Condition |
|---|---|---|
|
O227-8 (CANH) - I26-4 (CG) |
Cable disconnected from negative (-) auxiliary battery terminal |
200 Ω or higher |
|
O227-19 (CANL) - I26-4 (CG) |
| OK | |
REPLACE CENTRAL GATEWAY ECU (NETWORK GATEWAY ECU) |
| NG | |
REPAIR OR REPLACE CAN MAIN BUS LINE OR CONNECTOR (NO. 22 GLOBAL CAN JUNCTION CONNECTOR - CENTRAL GATEWAY ECU (NETWORK GATEWAY ECU)) |
|
14. |
CHECK FOR SHORT TO +B IN CAN BUS LINE (NO. 22 GLOBAL CAN JUNCTION CONNECTOR - CENTRAL GATEWAY ECU (NETWORK GATEWAY ECU)) |
(a) Disconnect the No. 22 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. 22 Global CAN Junction Connector) |
*b |
to Central Gateway ECU (Network Gateway ECU) |
Standard Resistance:
|
Tester Connection |
Condition |
Specified Condition |
|---|---|---|
|
O227-8 (CANH) - I26-16 (BAT) |
Cable disconnected from negative (-) auxiliary battery terminal |
6 kΩ or higher |
|
O227-19 (CANL) - I26-16 (BAT) |
| NG | |
GO TO STEP 22 |
|
|
15. |
CHECK FOR SHORT TO +B IN CAN BUS LINE (NO. 22 GLOBAL CAN JUNCTION CONNECTOR - CENTRAL GATEWAY ECU (NETWORK GATEWAY ECU)) |
(a) Measure the resistance according to the value(s) in the table below.
|
*1 |
DLC3 |
- |
- |
|
*a |
Front view of wire harness connector (to No. 22 Global CAN Junction Connector) |
*b |
to Central Gateway ECU (Network Gateway ECU) |
Standard Resistance:
|
Tester Connection |
Condition |
Specified Condition |
|---|---|---|
|
O227-9 (CANH) - I26-16 (BAT) |
Cable disconnected from negative (-) auxiliary battery terminal |
6 kΩ or higher |
|
O227-20 (CANL) - I26-16 (BAT) |
| NG | |
GO TO STEP 21 |
|
|
16. |
CHECK VEHICLE TYPE |
(a) Check vehicle type.
|
Result |
Proceed to |
|---|---|
|
for AWD |
A |
|
for 2WD |
B |
| B | |
GO TO STEP 18 |
|
|
17. |
CHECK FOR SHORT TO +B IN CAN BUS LINE (NO. 22 GLOBAL CAN JUNCTION CONNECTOR - 4WD 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. 22 Global CAN Junction Connector) |
*b |
to 4WD ECU Assembly |
Standard Resistance:
|
Tester Connection |
Condition |
Specified Condition |
|---|---|---|
|
O227-7 (CANH) - I26-16 (BAT) |
Cable disconnected from negative (-) auxiliary battery terminal |
6 kΩ or higher |
|
O227-18 (CANL) - I26-16 (BAT) |
| NG | |
GO TO STEP 19 |
|
|
18. |
CHECK FOR SHORT TO +B IN CAN BUS LINE (NO. 22 GLOBAL CAN JUNCTION CONNECTOR - TIRE PRESSURE WARNING ECU AND RECEIVER) |
(a) Measure the resistance according to the value(s) in the table below.
|
*1 |
DLC3 |
- |
- |
|
*a |
Front view of wire harness connector (to No. 22 Global CAN Junction Connector) |
*b |
to Tire Pressure Warning ECU and Receiver |
Standard Resistance:
|
Tester Connection |
Condition |
Specified Condition |
|---|---|---|
|
O227-10 (CANH) - I26-16 (BAT) |
Cable disconnected from negative (-) auxiliary battery terminal |
6 kΩ or higher |
|
O227-21 (CANL) - I26-16 (BAT) |
| OK | |
REPLACE NO. 22 GLOBAL CAN JUNCTION CONNECTOR |
| NG | |
GO TO STEP 20 |
|
19. |
CHECK FOR SHORT TO +B IN CAN BUS LINE (NO. 22 GLOBAL CAN JUNCTION CONNECTOR - 4WD ECU ASSEMBLY) |
(a) Disconnect the O201 4WD 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. 22 Global CAN Junction Connector) |
*b |
to 4WD ECU Assembly |
Standard Resistance:
|
Tester Connection |
Condition |
Specified Condition |
|---|---|---|
|
O227-7 (CANH) - I26-16 (BAT) |
Cable disconnected from negative (-) auxiliary battery terminal |
6 kΩ or higher |
|
O227-18 (CANL) - I26-16 (BAT) |
| OK | |
REPLACE 4WD ECU ASSEMBLY |
| NG | |
REPAIR OR REPLACE CAN BRANCH LINE OR CONNECTOR (NO. 22 GLOBAL CAN JUNCTION CONNECTOR - 4WD ECU ASSEMBLY) |
|
20. |
CHECK FOR SHORT TO +B IN CAN BUS LINE (NO. 22 GLOBAL CAN JUNCTION CONNECTOR - TIRE PRESSURE WARNING ECU AND RECEIVER) |
(a) Disconnect the O209*1, O221*2 tire pressure warning ECU and receiver connector.
- *1: w/ Smart Key System
- *2: w/o Smart Key System
(b) Measure the resistance according to the value(s) in the table below.
|
*1 |
DLC3 |
- |
- |
|
*a |
Front view of wire harness connector (to No. 22 Global CAN Junction Connector) |
*b |
to Tire Pressure Warning ECU and Receiver |
Standard Resistance:
|
Tester Connection |
Condition |
Specified Condition |
|---|---|---|
|
O227-10 (CANH) - I26-16 (BAT) |
Cable disconnected from negative (-) auxiliary battery terminal |
6 kΩ or higher |
|
O227-21 (CANL) - I26-16 (BAT) |
| OK | |
REPLACE TIRE PRESSURE WARNING ECU AND RECEIVER |
| NG | |
REPAIR OR REPLACE CAN BRANCH LINE OR CONNECTOR (NO. 22 GLOBAL CAN JUNCTION CONNECTOR - TIRE PRESSURE WARNING ECU AND RECEIVER) |
|
21. |
CHECK FOR SHORT TO +B IN CAN BUS LINE (NO. 22 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. 22 Global CAN Junction Connector) |
*b |
to Central Gateway ECU (Network Gateway ECU) |
Standard Resistance:
|
Tester Connection |
Condition |
Specified Condition |
|---|---|---|
|
O227-9 (CANH) - I26-16 (BAT) |
Cable disconnected from negative (-) auxiliary battery terminal |
6 kΩ or higher |
|
O227-20 (CANL) - I26-16 (BAT) |
| OK | |
REPLACE CENTRAL GATEWAY ECU (NETWORK GATEWAY ECU) |
| NG | |
REPAIR OR REPLACE CAN MAIN BUS LINE OR CONNECTOR (NO. 22 GLOBAL CAN JUNCTION CONNECTOR - CENTRAL GATEWAY ECU (NETWORK GATEWAY ECU)) |
|
22. |
CHECK FOR SHORT TO +B IN CAN BUS LINE (NO. 22 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. 22 Global CAN Junction Connector) |
*b |
to Central Gateway ECU (Network Gateway ECU) |
Standard Resistance:
|
Tester Connection |
Condition |
Specified Condition |
|---|---|---|
|
O227-8 (CANH) - I26-16 (BAT) |
Cable disconnected from negative (-) auxiliary battery terminal |
6 kΩ or higher |
|
O227-19 (CANL) - I26-16 (BAT) |
| OK | |
REPLACE CENTRAL GATEWAY ECU (NETWORK GATEWAY ECU) |
| NG | |
REPAIR OR REPLACE CAN MAIN BUS LINE OR CONNECTOR (NO. 22 GLOBAL CAN JUNCTION CONNECTOR - CENTRAL GATEWAY ECU (NETWORK GATEWAY ECU)) |
|
23. |
CHECK FOR SHORT IN CAN BUS LINES (NO. 22 GLOBAL CAN JUNCTION CONNECTOR - CENTRAL GATEWAY ECU (NETWORK GATEWAY ECU)) |
(a) Disconnect the No. 22 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. 22 Global CAN Junction Connector) |
*b |
to Central Gateway ECU (Network Gateway ECU) |
Standard Resistance:
|
Tester Connection |
Condition |
Specified Condition |
|---|---|---|
|
O227-8 (CANH) - O227-19 (CANL) |
Cable disconnected from negative (-) auxiliary battery terminal |
108 to 132 Ω |
| NG | |
GO TO STEP 31 |
|
|
24. |
CHECK FOR SHORT IN CAN BUS LINES (NO. 22 GLOBAL CAN JUNCTION CONNECTOR - CENTRAL GATEWAY ECU (NETWORK GATEWAY ECU)) |
(a) Measure the resistance according to the value(s) in the table below.
|
*a |
Front view of wire harness connector (to No. 22 Global CAN Junction Connector) |
*b |
to Central Gateway ECU (Network Gateway ECU) |
Standard Resistance:
|
Tester Connection |
Condition |
Specified Condition |
|---|---|---|
|
O227-9 (CANH) - O227-20 (CANL) |
Cable disconnected from negative (-) auxiliary battery terminal |
108 to 132 Ω |
| NG | |
GO TO STEP 30 |
|
|
25. |
CHECK VEHICLE TYPE |
(a) Check vehicle type.
|
Result |
Proceed to |
|---|---|
|
for AWD |
A |
|
for 2WD |
B |
| B | |
GO TO STEP 27 |
|
|
26. |
CHECK FOR SHORT IN CAN BUS LINES (NO. 22 GLOBAL CAN JUNCTION CONNECTOR - 4WD ECU ASSEMBLY) |
(a) Measure the resistance according to the value(s) in the table below.
|
*a |
Front view of wire harness connector (to No. 22 Global CAN Junction Connector) |
*b |
to 4WD ECU Assembly |
Standard Resistance:
|
Tester Connection |
Condition |
Specified Condition |
|---|---|---|
|
O227-7 (CANH) - O227-18 (CANL) |
Cable disconnected from negative (-) auxiliary battery terminal |
200 Ω or higher |
| NG | |
GO TO STEP 28 |
|
|
27. |
CHECK FOR SHORT IN CAN BUS LINES (NO. 22 GLOBAL CAN JUNCTION CONNECTOR - TIRE PRESSURE WARNING ECU AND RECEIVER) |
(a) Measure the resistance according to the value(s) in the table below.
|
*a |
Front view of wire harness connector (to No. 22 Global CAN Junction Connector) |
*b |
to Tire Pressure Warning ECU and Receiver |
Standard Resistance:
|
Tester Connection |
Condition |
Specified Condition |
|---|---|---|
|
O227-10 (CANH) - O227-21 (CANL) |
Cable disconnected from negative (-) auxiliary battery terminal |
200 Ω or higher |
| OK | |
REPLACE NO. 22 GLOBAL CAN JUNCTION CONNECTOR |
| NG | |
GO TO STEP 29 |
|
28. |
CHECK FOR SHORT IN CAN BUS LINES (NO. 22 GLOBAL CAN JUNCTION CONNECTOR - 4WD ECU ASSEMBLY) |
(a) Disconnect the O201 4WD 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. 22 Global CAN Junction Connector) |
*b |
to 4WD ECU Assembly |
Standard Resistance:
|
Tester Connection |
Condition |
Specified Condition |
|---|---|---|
|
O227-7 (CANH) - O227-18 (CANL) |
Cable disconnected from negative (-) auxiliary battery terminal |
1 MΩ or higher |
| OK | |
REPLACE 4WD ECU ASSEMBLY |
| NG | |
REPAIR OR REPLACE CAN BRANCH LINES OR CONNECTOR (NO. 22 GLOBAL CAN JUNCTION CONNECTOR - 4WD ECU ASSEMBLY) |
|
29. |
CHECK FOR SHORT IN CAN BUS LINES (NO. 22 GLOBAL CAN JUNCTION CONNECTOR - TIRE PRESSURE WARNING ECU AND RECEIVER) |
(a) Disconnect the O209*1, O221*2 tire pressure warning ECU and receiver connector.
- *1: w/ Smart Key System
- *2: w/o Smart Key System
(b) Measure the resistance according to the value(s) in the table below.
|
*a |
Front view of wire harness connector (to No. 22 Global CAN Junction Connector) |
*b |
to Tire Pressure Warning ECU and Receiver |
Standard Resistance:
|
Tester Connection |
Condition |
Specified Condition |
|---|---|---|
|
O227-10 (CANH) - O227-21 (CANL) |
Cable disconnected from negative (-) auxiliary battery terminal |
1 MΩ or higher |
| OK | |
REPLACE TIRE PRESSURE WARNING ECU AND RECEIVER |
| NG | |
REPAIR OR REPLACE CAN BRANCH LINES OR CONNECTOR (NO. 22 GLOBAL CAN JUNCTION CONNECTOR - TIRE PRESSURE WARNING ECU AND RECEIVER) |
|
30. |
CHECK FOR SHORT IN CAN BUS LINES (NO. 22 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. 22 Global CAN Junction Connector) |
*b |
to Central Gateway ECU (Network Gateway ECU) |
Standard Resistance:
|
Tester Connection |
Condition |
Specified Condition |
|---|---|---|
|
O227-9 (CANH) - O227-20 (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. 22 GLOBAL CAN JUNCTION CONNECTOR - CENTRAL GATEWAY ECU (NETWORK GATEWAY ECU)) |
|
31. |
CHECK FOR SHORT IN CAN BUS LINES (NO. 22 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. 22 Global CAN Junction Connector) |
*b |
to Central Gateway ECU (Network Gateway ECU) |
Standard Resistance:
|
Tester Connection |
Condition |
Specified Condition |
|---|---|---|
|
O227-8 (CANH) - O227-19 (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. 22 GLOBAL CAN JUNCTION CONNECTOR - CENTRAL GATEWAY ECU (NETWORK GATEWAY ECU)) |
|
32. |
CHECK FOR OPEN IN CAN MAIN BUS LINES (NO. 22 GLOBAL CAN JUNCTION CONNECTOR - CENTRAL GATEWAY ECU (NETWORK GATEWAY ECU)) |
(a) Disconnect the No. 22 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. 22 Global CAN Junction Connector) |
*b |
to Central Gateway ECU (Network Gateway ECU) |
Standard Resistance:
|
Tester Connection |
Condition |
Specified Condition |
|---|---|---|
|
O227-8 (CANH) - O227-19 (CANL) |
Cable disconnected from negative (-) auxiliary battery terminal |
108 to 132 Ω |
| NG | |
GO TO STEP 35 |
|
|
33. |
CHECK FOR OPEN IN CAN MAIN BUS LINES (NO. 22 GLOBAL CAN JUNCTION CONNECTOR - CENTRAL GATEWAY ECU (NETWORK GATEWAY ECU)) |
(a) Measure the resistance according to the value(s) in the table below.
|
*a |
Front view of wire harness connector (to No. 22 Global CAN Junction Connector) |
*b |
to Central Gateway ECU (Network Gateway ECU) |
Standard Resistance:
|
Tester Connection |
Condition |
Specified Condition |
|---|---|---|
|
O227-9 (CANH) - O227-20 (CANL) |
Cable disconnected from negative (-) auxiliary battery terminal |
108 to 132 Ω |
| OK | |
REPLACE NO. 6 GLOBAL CAN JUNCTION CONNECTOR |
|
|
34. |
CHECK FOR OPEN IN CAN MAIN BUS LINES (NO. 22 GLOBAL CAN JUNCTION CONNECTOR - 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.
|
*a |
Front view of wire harness connector (to Central Gateway ECU (Network Gateway ECU)) |
*b |
to No. 22 Global CAN Junction Connector |
Standard Resistance:
|
Tester Connection |
Condition |
Specified Condition |
|---|---|---|
|
O227-9 (CANH) - I231-10 (CAVH) |
Cable disconnected from negative (-) auxiliary battery terminal |
Below 1 Ω |
|
O227-20 (CANL) - I231-11 (CAVL) |
| OK | |
REPLACE CENTRAL GATEWAY ECU (NETWORK GATEWAY ECU) |
| NG | |
REPAIR OR REPLACE CAN MAIN BUS LINES OR CONNECTOR (NO. 22 GLOBAL CAN JUNCTION CONNECTOR - CENTRAL GATEWAY ECU (NETWORK GATEWAY ECU)) |
|
35. |
CHECK FOR OPEN IN CAN MAIN BUS LINES (NO. 22 GLOBAL CAN JUNCTION CONNECTOR - 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.
|
*a |
Front view of wire harness connector (to Central Gateway ECU (Network Gateway ECU)) |
*b |
to No. 22 Global CAN Junction Connector |
Standard Resistance:
|
Tester Connection |
Condition |
Specified Condition |
|---|---|---|
|
O227-8 (CANH) - I231-10 (CAVH) |
Cable disconnected from negative (-) auxiliary battery terminal |
Below 1 Ω |
|
O227-19 (CANL) - I231-11 (CAVL) |
| OK | |
REPLACE CENTRAL GATEWAY ECU (NETWORK GATEWAY ECU) |
| NG | |
REPAIR OR REPLACE CAN MAIN BUS LINES OR CONNECTOR (NO. 22 GLOBAL CAN JUNCTION CONNECTOR - CENTRAL GATEWAY ECU (NETWORK GATEWAY ECU)) |
READ NEXT:
Check Bus 7 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 tha
Precaution
PRECAUTION
PRECAUTION WHEN REPLACING CENTRAL GATEWAY ECU (NETWORK GATEWAY ECU)
(a) When the central gateway ECU (network gateway ECU) is replaced, update the
ECU security key.
Click here
PRECA
SEE MORE:
Installation
INSTALLATION
CAUTION / NOTICE / HINT
COMPONENTS (INSTALLATION)
Procedure
Part Name Code
1
REAR DISC
42431
-
-
2
REAR DISC BRAKE CYLINDER MOUNTING
Installation
INSTALLATION CAUTION / NOTICE / HINT COMPONENTS (INSTALLATION)
Procedure Part Name Code
1 NO. 2 EXHAUST MANIFOLD HEAT INSULATOR
17168 -
- -
2 EXHAUST MANIFOLD (TWC: Front Catalyst)
17141
- -
3 MANIFOLD ST
