U0300

U0300 CAN COMMUNICATION DATA





Description
The amount of data transmitted from each control unit is read.




DTC Logic

DTC DETECTION LOGIC






DTC CONFIRMATION PROCEDURE
1.PRECONDITIONING
If "DTC CONFIRMATION PROCEDURE" has been previously conducted, always turn ignition switch OFF and wait at least 10 seconds before conducting the next test.
- GO TO 2.
2.CHECK DTC DETECTION
With CONSULT-III
1. Turn ignition switch ON and wait 2 seconds or more.
2. Perform "Self Diagnostic Results" in "TRANSMISSION".
Is "U0300" detected?
YES - Go to SEE Diagnosis Procedure.
NO - INSPECTION END




Diagnosis Procedure
1.CHECK CONTROL UNIT
Check the number of control units replaced before detecting "U0300".
Is the number of replaced control units one?
YES - Since the replaced control unit may be out of specifications, check the part number and specifications.
NO - GO TO 2.
2.INSPECTION CONTROL UNIT
With CONSULT-III
1. Remove one of the replaced control units.
2. Install the previous control unit mounted before replacement.
3. Turn ignition switch ON and wait 2 seconds or more.
4. Perform "Self Diagnostic Results" in "TRANSMISSION".
Is "U0300" detected?
YES - Turn OFF the ignition switch to check the other control units in the same method.
NO - Since the removed control unit may be out of specifications, check the part number and specifications.