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.
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HOMESERVICE MANUALSCHEVROLET1995CAVALIER LS, 4D SEDAN, 2.2 4REPAIR AND DIAGNOSISEXTERNAL PAGESDIFFERENT CARSECTION 4 (ENGINE CONTROLS - TESTS W/CODES - 4.6L)PCM CODE CHARTSCODE P040, OPEN PSPS CIRCUITACTION
1995 Chevrolet Cavalier LS, 4D Sedan, 2.2 4
Code P040, Open PSPS Circuit: Action
1995 Chevrolet Cavalier LS, 4D Sedan, 2.2 4SECTION Action
WARNING: This page is about a different car, the 1995 Cadillac DeVille. However, it is still accessible from the selected car via links, so may be relevant.
PCM turns on MIL.
NOTE:
Test numbers refer to numbers on diagnostic chart.
- Checks if PI85 will cycle from high to low to high. If PI85 stays low, check for open or short to ground in circuit. If PI85 stays high, check for short to voltage in circuit.
- Checks is circuit No. 495 is shorted to voltage or if power steering is faulty.
- Checks if circuit No. 741 or fuse D1 is open.
- Checks if power steering pressure switch is open.
- Checks if circuit No. 495 is open or if PCM is faulty.
RENDER: 1.0x
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.