Power Steering Pressure Switch: Description and Operation

1999 Chrysler Cirrus L4-2.4L VIN XSECTION Description and Operation

Power Steering Pressure Switch:




POWER STEERING PRESSURE SWITCH-PCM INPUT
A pressure sensing switch is located on the power steering gear.

The switch provides an input to the PCM during periods of high pump load and low engine RPM; such as during parking maneuvers.

When power steering pump pressure exceeds 4137 kPa (600 psi), the switch is open. The PCM increases idle air flow through the IAC motor to prevent engine stalling. When pump pressure is low, the switch is closed.
RENDER: 1.0x

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When to See a Mechanic

Stop DIY work and contact a certified mechanic immediately if any of the following apply:

  • You smell fuel, burning insulation, or see smoke.
  • Brakes feel soft, pull hard to one side, or make grinding noises.
  • The engine overheats, stalls repeatedly, or misfires under load.
  • You are missing required tools, torque specs, or safe lifting equipment.
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