CVT

DTC U0001: Malfunction of CAN Communication Circuit

DIAGNOSTIC FUNCTION
TCM conducts bus-off detection.

JUDGEMENT CRITERIA
When malfunction is detected in the CAN communication system, the diagnosis code No.U0001 is set.

PROBABLE CAUSES
^ Malfunction of the CAN bus

DIAGNOSTIC PROCEDURE

STEP 1. M.U.T.-III CAN bus diagnostics
Use M.U.T.-III to perform the CAN bus diagnosis.

Q: Is the check result normal?
YES: Intermittent malfunction
NO: Repair the CAN bus lines.