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Brake Release

Fig 1: ABS Function Starts Operation Diagram (Brake Release)

G08990167

Courtesy of NISSAN NORTH AMERICA, INC.

Name	Not activated	During brake release
Cut valve 1	Power supply is not supplied (open)	Power supply is not supplied (open)
Cut valve 2	Power supply is not supplied (open)	Power supply is not supplied (open)
Suction valve 1	Power supply is not supplied (close)	Power supply is not supplied (close)
Suction valve 2	Power supply is not supplied (close)	Power supply is not supplied (close)
ABS IN valve	Power supply is not supplied (open)	Power supply is not supplied (open)
ABS OUT valve	Power supply is not supplied (close)	Power supply is not supplied (close)
Each brake caliper and each wheel cylinder (fluid pressure)	-	Pressure decreases

Front RH brake caliper

Brake fluid is supplied to the front RH brake caliper through the return check valve of the ABS IN valve and the cut valve 1, and returns to the master cylinder.

Front LH brake caliper

Brake fluid is supplied to the front LH brake caliper through the return check valve of the ABS IN valve and the cut valve 2, and returns to the master cylinder.

Rear RH brake caliper/wheel cylinder

Brake fluid is supplied to the rear RH brake caliper/wheel cylinder through the return check valve of the ABS IN valve and the cut valve 2, and returns to the master cylinder.

Rear LH brake caliper/wheel cylinder

Brake fluid is supplied to the rear LH brake caliper/wheel cylinder through the return check valve of the ABS IN valve and the cut valve 1, and returns to the master cylinder.