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Home >> Chevrolet >> 2002 >> Blazer 4D Utility, 4WD, Part Time >> Repair and Diagnosis >> External Pages >> Different car >> Section 593 (Tire Pressure Monitoring System) >> Diagnostic Information And Procedures >> DTC B2818: BCM Detects Ground Signal From Reset Switch >> Circuit Description

Circuit Description

WARNING: This page is about a different car, the 2002 Buick Regal and 2002 Buick Century. However, it is still accessible from the selected car via links, so may be relevant.

The Body Control Module (BCM) monitors a signal circuit from the Instrument Panel (IP) Fuse Block reset switch. When a ground signal is detected on this circuit, the BCM sends a message via a class 2 serial data circuit to the Instrument Panel Cluster (IPC) to turn off the LOW TIRE indicator.

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