|For brake systems utilizing CPP's Proportioning Valve, use
this tool when bleeding your brakes to lock the valve in place and keep
the valve from tripping. Simply remove the warning light switch (white plug)
on the valve, then screw in this tool while bleeding your brakes. After
the bleeding process is finished replace the warning light switch. Save
yourself the headache of having to reset the valve. Works with PV-2, PV-2A,
PV-2C, PV-4, PV-4A and PV-4C.