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Home >> Chevrolet >> 2002 >> Blazer 4D Utility, 4WD, Part Time >> Repair and Diagnosis >> External Pages >> Different car >> Section 1401 (Instrument Panel System Displays, Gauges And Console) >> Diagnostic Information and Procedures >> DTC B2961: Key In Ignition Circuit Malfunction >> Circuit Description

Circuit Description

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The body control module (BCM) monitors the ignition key alarm switch. When the key is in the ignition, the ignition key alarm switch is closed and the signal circuit is low. When the key is not in the ignition, the ignition key alarm switch is open and the signal circuit is high.

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