Diagnosis System

CAN COMMUNICATION: CAN COMMUNICATION SYSTEM: DIAGNOSIS SYSTEM

DIAGNOSIS SYSTEM

1. DTC COMBINATION TABLE

NOTE: Complete "CHECK CAN BUS LINE" Service Precautions to confirm that there is no malfunction in the CAN bus line, and then perform troubleshooting according to the following DTC combination table.

(a) Confirm the trouble mode according to the combination of output DTCs.





HINT:
- Previous CAN communication system DTCs may be the cause if CAN communication system DTCs are output and all ECUs an sensors connected to the CAN communication system are displayed on the Techstream "CAN Bus Check" screen.
- U0073/94, U0123/62, U0124/95, U0126/63 and U0100/65 are the DTCs in the CAN communication system.
- The above table shows combinations of these DTCs.
- o. DTCs that are being output.
- -. DTCs that are not being output.

2. BUS CHECK

HINT: The ECUs and sensors that are properly connected to the CAN communication system can be displayed using the Techstream.

(a) Select "CAN Bus Check" from the "System Select".
3. DTC TABLE BY ECU

HINT: If CAN communication system DTCs are output, trouble cannot be determined only by the DTCs. Perform troubleshooting according to "HOW TO PROCEED WITH TROUBLESHOOTING" How to Proceed With Troubleshooting.

(a) Skid Control ECU

HINT: DTC communication uses the SIL line.





(b) ECM

HINT: The ECM is connected to the CAN communication system but CAN communication system DTCs are not output.