Code No.U1073: Bus-Off
caution
If there is any problem in the CAN bus lines, an incorrect diagnosis code may be set. Prior to this diagnosis, diagnose the CAN bus lines.
Whenever the ECU is replaced, ensure that the CAN bus lines are normal.
DIAGNOSIS CODE SET CONDITION
This diagnosis code is set when the abnormality below is detected:
CAN C-bus off interruption is detected.
PROBABLE CAUSES
The CAN bus line is defective.
ECU malfunction of other system
Malfunction of 4WD-ECU
note
Check the following contents, before replace the 4WD-ECU.
Check M.U.T.-III to diagnose the CAN bus lines.
Check whether the diagnosis trouble code No.U1073 is reset.