Nissan Versa (N17): U0300 Can communication data

Nissan Versa 2nd generation (N17) Service Manual / Transmission & driveline / Transaxle & transmission (TM) / U0300 Can communication data

Description

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

DTC Logic

DTC DETECTION LOGIC

DTC Trouble diagnosis name DTC detection condition Possible causes
U0300 Internal Control Module Software Incompatibility When the amount of data transmitted from each control unit is smaller than the specified amount. Control units other than TCM.

DTC CONFIRMATION PROCEDURE

1.PRECONDITIONING

If another "DTC CONFIRMATION PROCEDURE" occurs just before, turn ignition switch OFF and wait for at least 10 seconds, then perform the next test.

>> GO TO 2.

2.CHECK DTC DETECTION

  1. Start the engine and wait 2 seconds or more.
  2. Check DTC.

Is "U0300" detected?

YES >> Go to TM, "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

  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 using the same method.

NO >> Since the removed control unit may be out of specifications, check the part number and specifications.

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