DTC Troubleshooting

Control System DTCs

DTC Troubleshooting: P0630

DTC P0630 : VIN Not Programmed or Mismatch

NOTE:
* Before you troubleshoot, record all freeze data and any on-board snapshot, and review the general troubleshooting information How To Troubleshoot The Fuel And Emissions Systems.
* This DTC is stored only when the ECM does not have the VIN information of the vehicle. Use the HDS to input the missing VIN information.

1. VIN check:

VIN check
-1. Turn the ignition switch to ON (II).

-2. Check the VIN with the HDS.

Does the HDS show the vehicle's VIN?
-YES- Go to step 4.
-NO- Go to step 2.

2. VIN check (rewrite):

VIN check (rewrite)
-1. Input the VIN to the ECM with the HDS.

Does the HDS show COMPLETE?
-YES- Go to step 4.
-NO- Go to step 3.

3. DTC check:

DTC check
-1. Check for Pending or Confirmed DTCs with the HDS.

Is DTC P062F indicated?
-YES- Do the DTC P062F troubleshooting DTC Troubleshooting.
-NO- Go to step 4.

4. ECM check:

ECM check
-1. Clear the DTC with the HDS.

-2. Turn the ignition switch to LOCK (0).

-3. Turn the ignition switch to ON (II), and wait 5 seconds.

-4. Check for Pending or Confirmed DTCs with the HDS.

Is DTC P0630 indicated?
-YES- Update the ECM ECM/PCM Update if it does not have the latest software, or substitute a known-good ECM Service and Repair, then recheck.
-NO- Intermittent failure, the system is OK at this time. If any other Pending or Confirmed DTCs are indicated, go to the indicated DTC's troubleshooting.