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)BODY & FRAMEBODY, CAB CONTROL SYSTEMSBODY CONTROL MODULESOPERATIONAUTOMATIC TRANSAXLE SHIFT LOCK CONTROL
2000 Chevrolet Cavalier Base, 2D Coupe, Automatic, 4T40E/MN4
Automatic Transaxle Shift Lock Control
2000 Chevrolet Cavalier Base, 2D Coupe, Automatic, 4T40E/MN4SECTION Automatic Transaxle Shift Lock Control
Body Control Module (BCM) controls shift lock function by supplying system ground. Shift lock is released when ignition is on and brake is applied. See appropriate ELECTRONIC CONTROLS article in AUTOMATIC TRANSMISSIONS.
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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.