Code No. U0121:
CAN Time-out Error (ABS/ASC)
DIAGNOSTIC FUNCTION
CVT-ECU determines that malfunction is present if the periodic communication data sent
from the ABS/ASC-ECU via CAN bus lines is abnormal.
JUDGEMENT CRITERIA
CVT-ECU cannot receive the periodic communication data from ABS/ASC-ECU.
PROBABLE CAUSES
- Malfunction of the CAN bus
- ABS/ASC-ECU malfunction
- Malfunction of CVT-ECU