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 MANUALSOLDSMOBILE1998ACHIEVA 3.1 M, 4T40E/MN4REPAIR AND DIAGNOSISEXTERNAL PAGESDIFFERENT CARSECTION 5 (BODY CONTROL MODULES)PROGRAMMINGPASSLOCK(R) LEARN PROCEDURES
1998 Oldsmobile Achieva 3.1 M, 4T40E/MN4
PASSLOCK(R) Learn Procedures
1998 Oldsmobile Achieva 3.1 M, 4T40E/MN4SECTION PASSLOCK(R) Learn Procedures
WARNING: This page is about a different car, the 1999 Pontiac Grand Am and 1999 Oldsmobile Alero. However, it is still accessible from the selected car via links, so may be relevant.
NOTE:
Perform the Passlock(R) learn procedure when the Passlock(R) sensor, BCM or PCM have been replaced. Program replaced module before programming Passlock(R).
- Turn ignition ON.
- Turn ignition to CRANK, and then back to ON without starting vehicle.
- Observe SECURITY indicator for 10 minutes.
- After ignition has been on for 10 minutes, the SECURITY indicator will switch from on to off.
- Using scan tool, clear DTCs.
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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.