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DTC P0630 (LLU)

DTC P0630 (LLU)

Diagnostic Instructions


• Perform the Diagnostic System Check - Vehicle prior to using this diagnostic procedure.

• Review Strategy Based Diagnosis for an overview of the diagnostic approach.

• Diagnostic Procedure Instructions provides an overview of each diagnostic category.


DTC Descriptor

DTC P0630 00

VIN Not Programmed or Mismatched - Engine Control Module (ECM)

Circuit/System Description

This DTC is set if the engine control module (ECM) has determined that the vehicle identification number (VIN) is not stored in the ECM memory. The VIN must be programmed to the memory of the control module after replacement.

Conditions for Running the DTC


• The control module is ON or awake.

• The DTC runs continuously when the above condition is met.


Conditions for Setting the DTC

The ECM detects that no VIN is stored in memory.

Action Taken When the DTC Sets

DTCs P0630 00 is a Type C DTC.

Conditions for Clearing the DTC

DTCs P0630 00 is a Type C DTC.

Reference Information

DTC Type Reference

Powertrain Diagnostic Trouble Code (DTC) Type Definitions

Scan Tool Reference

Control Module References for scan tool information

Circuit/System Verification

Note

The ECM cannot determine if the VIN programmed into the control module is valid. Always verify that the VIN displayed on the scan tool is correct for that vehicle.



1. Ignition on, observe vehicle information under ID system information on the scan tool. The VIN information should match the vehicles VIN.

2. If a VIN is not displayed, program the VIN with a scan tool.

3. Drive the vehicle within the conditions for running the DTC. You may also operate the vehicle within the conditions that you have noted from the freeze frame/failure records data.


Repair Instructions

Perform the Diagnostic Repair Verification after completing the diagnostic procedure.