Operation CHARM: Car repair manuals for everyone.

Hydraulic Control Circuit

The tandem belt-driven pump supplies oil under pressure from the fluid reservoir to the system pressure accumulator, by way of the charging valve. When ASC + T is active, one or both of the solenoid valves is energized, and accumulator pressure is used to modulate the respective plunger assemblies. As shown, the hydraulic pressure exerts a braking effect on the respective wheels.

An integrated pressure sensor detects minimum system pressure. Over pressure protection is provided by a mechanical pressure linking valve in the pressure supply circuit.