Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
2.0L - VIN K
The Power Steering Pressure Switch (PSPS) is normally open to ground, and circuit No. 495 should have near battery voltage. Power steering pressure increases as steering wheel is turned. The PSPS will close (less than 1 volt on circuit No. 495), disengaging the A/C compressor clutch and increasing the idle air rate.
A PSPS that will NOT close, or an open in circuits No. 495 or 450, may cause the engine to stall when power steering load is high. A PSPS that will NOT open, or a short to ground of circuit No. 495, may effect engine idle and will not allow for A/C compressor clutch operation.
- Different makes of "SCAN" testers may display the state of PSPS switch in different ways. Refer to operation manual for your particular tester.
- This step checks if circuit No. 495 is shorted to ground.
- This step simulates a closed PSPS switch.
NO RELATED
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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.
- • You are not confident in the next step or safety outcome.