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.
2001 Buick Century CustomFACTORY OEM SERVICE PROCEDURE
Powertrain Control Module: Notes
CAUTION:
Powertrain Control Module (PCM) is electrostatically sensitive. Before servicing PCM, technician must ground himself and work area to avoid possible build-up of electrostatic charge and damage to PCM. Do not remove part from packaging until ready to install. Ground any static-proof package before opening. Do not touch electrical terminals of components unless properly grounded. Do not lay electrical components on car seat, carpeting or dashboard. Use electrostatic protection mat and ground strap whenever possible.
Factory Service Tools
Use the Manual With the Right Hardware
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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.