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Home >> Chevrolet >> 2004 >> Optra Base, Automatic >> Repair and Diagnosis >> Brakes >> Traction Control >> Anti-Lock Brake System >> Diagnostic Information and Procedures >> No Communication with Electronic Brake Control Module >> Circuit Description
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Circuit Description

Battery voltage is supplied to the electronic brake control module (EBCM) through fuse F11 in the instrument panel (I/P) fuse block, to terminal 15 of the EBCM connector. The voltage is present when the ignition switch is in the ON or START position.

This test checks for battery output, proper grounding, blown fuses, a faulty ignition switch, and problems in the circuitry.

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