Code No. U0440: Implausible AWC data: Notes
CAUTION:
- If there is any problem in the CAN bus lines, an incorrect DTC may be stored. Prior to this diagnosis, diagnose the CAN bus lines (Refer to CAN BUS DIAGNOSTICS TABLE ).
- If DTC No. U0440 is stored in ASC-ECU, always diagnose the CAN bus line. If there is any fault in the CAN bus lines, an incorrect DTC may be stored. In this case, the stored DTC is not highly reliable.
- Before replacing the ECU, ensure that the communication circuit is normal.