Code No. P0630: Chassis Number not Programmed


FUNCTION



  • The chassis number is stored in the engine-ECU by the vehicle manufacturer.

TROUBLE JUDGMENT


Check Condition
  • Ignition switch is "ON" position.
Judgment Criterion
  • The entered chassis number data history is not found.

FAIL-SAFE AND BACKUP FUNCTION



  • The AS&G control is prohibited.

PROBABLE CAUSES



  • The chassis number is not entered.
  • Failed engine-ECU.

DIAGNOSIS PROCEDURE

STEP 1. Check chassis number information.

  • Set M.U.T.-III to the coding mode for chassis number information.

Q. Has chassis number been written?
Go to Step 2.
Write chassis number. Go to Step 3.

STEP 2. M.U.T.-III diagnosis code.

  • Reconfirm whether the diagnosis code is set.

  • Erase the diagnosis codes being set.
  • Ignition switch: "LOOK" (OFF) to ON.
  • Confirm whether the diagnosis code is set.

Q. Is the diagnosis code set?
Replace the engine-ECU.
Intermittent malfunction (Refer to GROUP 00 - How to Use Troubleshooting/Inspection Service Points - How to Cope with Intermittent Malfunctions ).

STEP 3. M.U.T.-III diagnosis code.

  • Reconfirm whether the diagnosis code is set.

  • Erase the diagnosis codes being set.
  • Ignition switch: "LOOK" (OFF) to ON.
  • Confirm whether the diagnosis code is set.

Q. Is the diagnosis code set?
Replace the engine-ECU.
The check is end.