Can Communication System (For Rhd) How To Proceed With Troubleshooting
CHECK AND CLEAR DTCS
CHECK FOR INSTALLED SYSTEMS (ECUS & SENSORS) THAT ADOPT CAN COMMUNICATION)
CHECK CAN BUS WIRE
CHECK INTELLIGENT TESTER
DTC COMBINATION TABLE
CIRCUIT INSPECTION
IDENTIFICATION OF PROBLEM
REPAIR OR REPLACE
CONFIRMATION TEST
Can Communication System (For Rhd) -- How To Proceed With Troubleshooting |
- NOTICE:
- DTCs for the CAN communication system are as follows: U0101, U0073, U0100, U0123, U0124, U0126, U0129, and B1499.
- Refer to troubleshooting of each system if DTCs regarding the CAN communication system are not output.
2.CHECK FOR INSTALLED SYSTEMS (ECUS & SENSORS) THAT ADOPT CAN COMMUNICATION) |
Check which of the following is adopted: SFI system, automatic transaxle system, brake control system, supplemental restraint system, air conditioning system and meter / gauge system (Link).
Check the CAN bus wires (CAMRY_ACV40 RM000000VYK01CX.html).
4.CHECK INTELLIGENT TESTER |
Select "Communication Bus Check" (CAMRY_ACV40 RM000000WIB040X.html).
- Result:
Symptom
| Proceed
| See procedure
|
All the ECUs and sensors connected to the CAN communication system are displayed on the screen.
| A
| Go to step 5
|
An ECU or sensor not connected to the CAN communication system is displayed on the screen.
| B
| CAMRY_ACV40 RM000000WIB040X.html
|
More than one of the ECUs and sensors not connected to the CAN communication system are displayed on the screen. (If the displayed ECUs and sensors are only those relating to the "Engine" and "ECT", proceed to B.)
| C
| CAMRY_ACV40 RM000001ZSO00UX.html
|
- NOTICE:
- The systems (ECUs, sensors) that adopt CAN communication vary depending on the vehicle and option settings. Check which systems (ECUs, sensors) are installed on the vehicle (CAMRY_ACV40 RM000000WIB040X.html).
- Non-installed ECUs or sensors are not displayed. Do not mistake ECUs that are not installed as being in communication stop mode.
- If 2 or more ECUs or sensors are not displayed on the intelligent tester, perform troubleshooting for communication stop mode for each undisplayed ECU or sensor. (Open in one side of the CAN branch wires.)
| GO TO "COMMUNICATION STOP MODE TABLE" |
|
| GO TO "OPEN IN ONE SIDE OF CAN BRANCH WIRE" |
|
|
Confirm trouble according to the combination of output DTCs regarding the CAN communication system (CAMRY_ACV40 RM000000WIB040X.html).
- HINT:
- Previous CAN communication system DTCs may be the cause if CAN communication system DTCs are output and all ECUs and sensors connected to the CAN communication system are displayed on the intelligent tester "Communication Bus Check" screen.
7.IDENTIFICATION OF PROBLEM |