DTC U111B: EMCU CAN timeout: Notes
CAUTION:
- If there is any problem in the CAN bus lines, an incorrect DTC may be set. Prior to this diagnosis, diagnose the CAN bus lines (Refer to CAN BUS DIAGNOSTICS TABLE ) .
- Whenever ECU is replaced, ensure that the CAN bus lines are normal.
- If DTC U111B is set in ASC-ECU, always diagnose the CAN bus line. If there is any fault in the CAN bus lines, an incorrect DTC may be set. In this case, the set DTC is not highly reliable.
- Before replacing the ECU, ensure that the communication circuit is normal.