P0630

P0630

General Description
Regulations require that all 2005 and subsequent model year vehicles shall have the Vehicle Identification Number(VIN) available in a standardized format through the standardized data link connector in accordance with SAE J1979 specifications. Using a scan tool, PERFORM "VIN WRITING" procedure after replacing or reflashing a PCM.

DTC Description
The purpose of this logic is to prevent a vehicle from leaving the assembly plant or service station without a VIN in its EEPROM memory. If the VIN writing is not programmed or incompatible, the PCM determines that a fault exists and a DTC is stored. And the MIL (Malfunction Indication Lamp) turns on.

DTC Detecting Condition:

Monitor Scantool Data
1. Ignition "OFF"
2. Connect Scantool and Ignition "ON"
3. Monitor the PCM status by VIN reading whether it is virgin or learn






4. Is the PCM status Virgin?

YES - Perform VIN writing procedure according to the direction on the scantool screen and go to "Verification of Vehicle Repair" procedure.

NO - Fault is intermittent caused by poor contact in Sensors and/or PCM's connector or was repaired and PCM memory was not cleared. Thoroughly check connectors for looseness, poor connection, bending, corrosion, contamination, deterioration, or damage. Repair or replace as necessary and go to "Verification of Vehicle Repair" procedure

Verification of Vehicle Repair
1. Connect scan tool and select "Diagnostic Trouble Codes (DTCs)" mode
2. Press F5 (INFO) and confirm that "DTC Readiness Flag" indicates "Complete". If not, drive the vehicle within conditions noted in the freeze frame data or enable conditions
3. Read "DTC Status" parameter
4. Is parameter displayed "History (Not Present) fault"?

YES - System performing to specification at this time. Clear the DTC

NO - Go to the applicable troubleshooting procedure.