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Home >> Chevrolet >> 2002 >> Blazer 4D Utility, 4WD, Part Time >> Repair and Diagnosis >> External Pages >> Different car >> Section 816 (Instrument Panel, Gages, And Console) >> Diagnostic Information and Procedures >> DTC B2961: Ignition 1 Input Is Active And The Key In Ignition Switch Signal Circuit Is Inactive >> 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 with the signal circuit as low. When the key is not in the ignition, the ignition key alarm switch is open with the signal circuit as high.

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