GM Service Manual Online
For 1990-2009 cars only

Circuit Description

The body control module (BCM) can be configured with the applicable vehicle options. This code implies that the BCM was not configured either at the asembly plant or after replacement.

Conditions for Running the DTC

    • The ignition switch is on.
    • Voltage supplied to the BCM is in the normal operating range (approximately 9-16 volts).

Conditions for Setting the DTC

The DTC sets when the BCM is not configured properly.

Action Taken When the DTC Sets

The SERVICE VEHICLE SOON indicator illuminates.

Conditions for Clearing the DTC

    • A current DTC B1001 will clear when the BCM is properly programmed.
    • A history DTC will clear if the condition is no longer present after 100 ignition cycles.

Test Description

The number(s) below refer to the step number(s) on the diagnostic table.

  1. If DTC B1001 is set as current, reprogram the BCM.

Step

Action

Yes

No

1

Did you perform the Body Control Module Diagnostic System Check?

Go to Step 2

Go to Diagnostic System Check - Body Control System

2

Reprogram the body control module. Refer to Body Control Module (BCM) Programming/RPO Configuration .

Did you complete the procedure?

System OK

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