GM Service Manual Online
For 1990-2009 cars only

Diagnostic Instructions

    â€¢  Perform the Diagnostic System Check - Vehicle prior to using this diagnostic procedure.
    â€¢  Review Strategy Based Diagnosis for an overview of the diagnostic approach.
    â€¢  Diagnostic Procedure Instructions provides an overview of each diagnostic category.

DTC Descriptor

DTC B1001: Option Configuration Error

Circuit/System Description

Some control modules must be configured with serial numbers, vehicle options, or other information. If a control module was not properly configured after installation, that module may set DTC B1001.

Conditions for Running the DTC

Battery voltage is between 9-16 volts and data link communications operate normally.

Conditions for Setting the DTC

The control module is not configured properly.

Conditions for Clearing the DTC

    â€¢ A current DTC clears when the malfunction is no longer present.
    â€¢ A history DTC clears when the module ignition cycle counter reaches the reset threshold, without a repeat of the malfunction.

Circuit/System Verification

  1. Program or configure the module or related module that set DTC B1001. Refer to Control Module References for the specific instructions.
  2. ⇒If the module will not configure, replace the module that set the DTC.
  3. With a scan tool, clear the DTC.
  4. Ignition OFF, remove the scan tool, open and close the drivers door.
  5. Wait 60 seconds, then recheck for DTCs.
  6. ⇒If DTC B1001 returns, replace the module.

Repair Instructions

Perform the Diagnostic Repair Verification after completing the diagnostic procedure.

Control Module References for control module replacement, setup, and programming