Contour V6-153 2.5L DOHC VIN L SFI (1997)
Power Steering Pressure Switch: Description and Operation
Power Steering Pressure (PSP) switch is a normally closed switch that opens as pressure in the power steering system increases. The PSP is used to send
a signal to the Powertrain Control Module (PCM) to adjust idle speed to compensate for the additional load on the engine.
