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Home >> Chevrolet >> 2002 >> Blazer 4D Utility, 4WD, Part Time >> Repair and Diagnosis >> External Pages >> Different car >> Section 1412 (Antilock Brake System And Traction Control System) >> Diagnostic Information and Procedures >> DTC C0291: Lost Communications With BCM >> Circuit Description

Circuit Description

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The body control module (BCM) sends a state of health serial data message to the electronic brake control module (EBCM) within 5.5 seconds after the ignition is turned ON.

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