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 P065, CRUISE CONTROL SERVO POSITION SENSOR FAILUREACTION
1995 Chevrolet Cavalier LS, 4D Sedan, 2.2 4
Code P065, Cruise Control Servo Position Sensor Failure: 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 disables cruise control.
NOTE:
Test numbers refer to numbers on diagnostic chart.
- Checks if cruise control feedback is a value that it should never be, even with servo fully released (0-2).
- Checks PCM and circuit to cruise control servo are okay. Voltage reading should be 4.6-5.1 volts.
- Checks circuit No. 399 for an open.
- Checks circuit No. 398 for an open.
- Checks circuit No. 398 for short to ground. If wire is okay, PCM is open internally.
- Checks if cruise control servo is operating normally. If feedback is greater than 30, servo is operating correctly.
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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.