Cruze

DTC P0630

This DTC sets when the engine control module (ECM) has determined that the vehicle identification number (VIN) is not stored in the ECM memory. When the control module is replaced, the VIN must be programmed into the control module memory.

The ECM detects that no VIN is stored in memory.

DTC P0630 is a type C DTC.

DTC P0630 is a type C DTC.

Some diagnostics will not run when the MIL is illuminated and DTC P0630 is set. Always program the VIN to the control module immediately after replacement.

If there are difficulties programming the VIN, ensure that all connections to the ECM and equipment are correct. Ensure that the latest software is installed and all programming procedures are performed correctly.

Description and Operation

Engine Control Module Description

DTC Type Reference

Powertrain Diagnostic Trouble Code (DTC) Type Definitions

Scan Tool Reference

Control Module References for scan tool information

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 the Vehicle Information with a scan tool. The VIN information should match the vehicles VIN.

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

2. Operate the vehicle within the Conditions for Running the DTC to verify the DTC does not reset. You may also operate the vehicle within the conditions that you observed from the Freeze Frame/Failure Records data.

Perform the Diagnostic Repair Verification after completing the diagnostic procedure.

Control Module References for ECM replacement, setup, and programming