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Home >> Saturn >> 2003 >> LW200 L4-2.2L VIN F >> Repair and Diagnosis >> Powertrain Management >> Computers and Control Systems >> Relays and Modules - Computers and Control Systems >> Body Control Module >> Description and Operation >> Body Control Module Functions >> Low Brake Fluid
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Low Brake Fluid

Under low brake fluid conditions, the brake fluid switch closes. When closed, the brake fluid switch grounds circuit 333.

The BCM responds by sending a serial data message to the Instrument Panel Cluster (IPC) to turn On the brake telltale.
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