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DTC Diagnosis Procedure
1.CONTROL UNIT CHECK
Check the number of control units replaced before “U0300” is detected.
Is one control unit replaced?
The specification of the control unit replaced may be incorrect. Check the part number and the specification.
 
2.CONTROL UNIT CHECK
With M.U.T.-III SE
  1. Remove one of the control unit replaced.
  2. Assemble the old control unit before replacement.
  3. The ignition switch is ON, and wait for 2 seconds or more.
  4. Select “Self-diagnosis” in “TRANSMISSION”.
Is DTC detected?
Turn OFF the ignition switch and check other control units in the same manner.
The specification of the control unit removed may be incorrect. Check the part number and the specification.