6000 V6-191 3.1L (1989)
Power Steering Pressure Switch: Description and Operation
Power Steering Pressure Switch (PSPS)
The Power Steering Pressure Switch (PSPS) opens during high pressure power steering situations. When the power steering switch is open, power to the
A/C relay is shut off, resulting in air conditioning compressor clutch disengagement. A signal is also sent to the ECM. The ECM uses this signal for idle
control.