Power Steering Pressure Switch
WARNING: This page is about a different variant/trim than selected.
Power Steering Pressure (PSP) switch monitors power steering pressure. PSP switch is normally closed and opens as pressure increases. PCM uses PSP switch input signal to compensate for additional loads on engine by adjusting idle speed RPM, and prevents engine stall during parking maneuvers. PCM also uses PSP signal to adjust transaxle/transmission Electronic Pressure Control (EPC) pressure during increased engine load.