DTC U1073: Bus off: Notes

WARNING: This page is about a different car, the 2009 Mitsubishi Eclipse. However, it is still accessible from the selected car via links, so may be relevant.

CAUTION:

If DTC U1073 is set in the steering wheel sensor, always diagnose the CAN main bus line. If there is any fault in the CAN bus lines, an incorrect DTC may be set.
Whenever the ECU is replaced, ensure that the communication circuit is normal.

CAUTION: If DTC U1073 has been set, TCL/ASC-ECU related DTC C1506 is also set. After DTC U1073 has been diagnosed, don't forget to erase DTC C1506.