GM Service Manual Online
For 1990-2009 cars only

Diagnostic Instructions

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

DTC Descriptor

DTC B2976 00: Driver Door Ajar Circuit

Diagnostic Fault Information

Circuit

Short to Ground

Open/High Resistance

Short to Voltage

Signal Performance

Driver Door Ajar

B2976 00

1

1

--

1. Door Ajar Malfunction

Circuit/System Description

When the driver door lock is in to the AJAR position, ground is applied through the switch to the body control module (BCM). The BCM then sends a class 2 message to the instrument panel cluster to illuminate the ajar indicator.

Conditions for Running the DTC

The ignition is ON.

Conditions for Setting the DTC

The BCM receives a voltage signal on the driver door ajar circuit.

Action Taken When the DTC Sets

The Ajar indicator is on at all times.

Conditions for Clearing the DTC

The BCM clears this code from current when the fault is removed from the system.