Chart B3, EBCM Loop Grounded

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This chart covers loop circuits No. 865 (EBCM to pressure switch), No. 853 (pressure switch to fluid level sensor) and No. 866 (fluid level sensor to EBCM). An open or ground causes the EBCM to enter "inhibit" mode and partially disable anti-lock mode while turning on "ANTI-LOCK" lamp.
The Inhibit mode is a reduced state of operation that the EBCM can call on when certain types of failures occur. During Inhibit mode, Main Valve is disabled as is the anti-lock function on front wheels. The rear wheels may still operate in the anti-lock mode. If condition that caused EBCM to call Inhibit mode clears, normal operation is restored.

Fig 1: Flow Chart B-3, EBCM Shorted to Ground

Courtesy of GENERAL MOTOR CO.

Fig 2: Chart B3, EBCM Loop Grounded