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, 2D COUPE, AUTOMATIC, 4T40E/MN4REPAIR AND DIAGNOSIS (SINGLE PAGE)GENERAL INFORMATIONCOMPUTER RELEARN PROCEDURESRELEARN PROCEDURES (CARS)DEVILLE, ELDORADO & SEVILLEELECTRONICALLY ERASABLE PROGRAMMABLE READ ONLY MEMORY (EEPROM) PROGRAMMING
2000 Chevrolet Cavalier Base, 2D Coupe, Automatic, 4T40E/MN4
Electronically Erasable Programmable Read Only Memory (EEPROM) Programming
2000 Chevrolet Cavalier Base, 2D Coupe, Automatic, 4T40E/MN4SECTION Electronically Erasable Programmable Read Only Memory (EEPROM) Programming
- If Powertrain Control Module (PCM) was replaced, the EEPROM in the PCM must be programmed. If EEPROM is not programmed, a Diagnostic Trouble Code (DTC) will be set in the PCM or PCM may be damaged. Perform EEPROM programming using the Techline equipment manufacturer's instructions and latest software applicable for the vehicle model. Perform Vehicle Theft Deterrent (VTD) system auto learn procedure. See VEHICLE THEFT DETERRENT SYSTEM AUTO LEARN PROCEDURE.
- To verify proper EEPROM programming, start engine. If engine starts, go to next step. If engine fails to start, ensure all electrical connections on PCM are okay and all fuses are okay. Check Techline for latest software. Once engine is repaired so it will start, go to next step.
- Once EEPROM is programmed, use scan tool to clear DTC P0603 from PCM. Engine oil life interval and transaxle fluid life interval must now be reprogrammed. See ENGINE OIL LIFE INTERVAL PROGRAMMING. See TRANSAXLE FLUID LIFE INTERVAL PROGRAMMING.
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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.