GM Service Manual Online
For 1990-2009 cars only

DTC Descriptors

DTC B1001 00: Option Configuration Error (RPO Mismatch)

Diagnostic Fault Information

Important: Always perform the Diagnostic System Check - Vehicle prior to using this diagnostic procedure.

Circuit/System Description

The instrument panel cluster (IPC) has an initial vehicle system programming error.

Conditions for Running DTC

    â€¢ System voltage is between 9-16 volts.
    â€¢ Ignition switch is in the ON position.

Conditions for Setting the DTC

The IPC is powered up prior to RPO programming.

Conditions for Clearing the DTC

    â€¢ The condition for setting the DTC is no longer present.
    â€¢ The DTC can be cleared using a scan tool.

Action Taken When the DTC Sets

The IPC will display a "Program with Scan Tool" message.

Reference Information

Scan Tool Reference

Control Module References

Circuit/System Testing

  1. Ignition ON, using the scan tool, verify that DTC B1001 is not set as current.
  2. ⇒If DTC B1001 is set as current, attempt to re-calibrate the IPC.
  3. Clear all DTCs using the scan tool, verify that DTC B1001 is no longer set as current.
  4. ⇒If DTC B1001 is still current. Replace the IPC.

Repair Instructions

Important: Always perform the Diagnostic Repair Verification after completing the diagnostic procedure.

Control Module References for IPC replacement, setup, and programming