Circuit Operation

NOTE: The following information is intended to be used in conjunction with the electrical diagrams.

CIRCUIT OPERATION
Four fuses supply power for the Anti-Lock Brake System (ABS); fuses A, F and E in the Power Distribution Center (PDC) and fuse 4 in the fuse block. Fuses A, F and E in the PDC are connected directly to battery voltage and are HOT all times. Fuse 4 is HOT when the ignition switch is the RUN position.

In the RUN position, the ignition switch connects circuit A2 from a 20 amp fuse in cavity E of the PDC with circuit A22. Circuit A22 connects to a bus bar in the fuse block. The bus bar feeds circuit A20 through fuse 4. Fuse 4 is a 5 amp fuse.

Circuit A2O is double crimped at the coil side of the ABS warning lamp relay The A2O circuit from the ABS warning lamp relay splices to supply voltage to pins 7 and 12 of the ABS control module and the coil side of the ABS power relay

Circuits Z7 and Z8 provide ground for the ABS control module. Both grounds terminate on the left fender side shield. Circuit Z7 connects to cavity 20 of the 37-way ABS control module connector. Circuit Z8 connects to cavity 1 of the two-way connector.