Multiplex Communication System

DIAGNOSTIC TROUBLE CODE CHART

1. DTC COMBINATION TABLE






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

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

HINT:
- DTC U1223 is also output when U0073 or U0124 is output.
- U0073/94, U0123/62, U0124/95 and U0126/63 are the DTCs in the CAN communication system.
- The table shows combinations of these DTCs.
- ..... DTCs that are being output.
- - ...... DTCs that are not being output.




b. Confirm the trouble mode by referring to the DTC Combination Table. Then check the parts to be replaced and proceed to, by referring to the given table.

DTC Detecting Condition:

c. DTC detection condition