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 MANUALSCHEVROLET2000CAVALIER BASE, 4D SEDAN, 2.2 4, LN2, AUTOMATIC, 3T40/MD9REPAIR AND DIAGNOSISGENERAL INFORMATIONCOMPUTER RELEARN PROCEDURESRELEARN PROCEDURES (CARS)CATERAELECTRONICALLY ERASABLE PROGRAMMABLE READ ONLY MEMORY (EEPROM) PROGRAMMING
2000 Chevrolet Cavalier Base, 4D Sedan, 2.2 4, LN2, Automatic, 3T40/MD9
Electronically Erasable Programmable Read Only Memory (EEPROM) Programming
2000 Chevrolet Cavalier Base, 4D Sedan, 2.2 4, LN2, Automatic, 3T40/MD9SECTION Electronically Erasable Programmable Read Only Memory (EEPROM) Programming
- The replacement Powertrain Control Module (PCM) comes with the EEPROM already programmed. However, the PCM must be programmed with proper immobilizer signal for anti-theft system before the vehicle will start. See CONTENT THEFT DETERRENT SYSTEMS & IMMOBILIZER.
- Once PCM is programmed, perform powertrain On-Board Diagnostic (OBD) system check. See POWERTRAIN ON-BOARD DIAGNOSTIC (OBD) SYSTEM CHECK in appropriate SELF-DIAGNOSTICS article in ENGINE PERFORMANCE.
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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.