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.
1997 Oldsmobile Cutlass BaseFACTORY OEM SERVICE PROCEDURE
Reprogramming BFC
NOTE:
To reprogram BFC, a Techline Terminal is required.
- Connect scan tool. Select SERVICE PROGRAMMING from main menu. After entering vehicle information, choose REQUEST INFO soft key on scan tool. Disconnect scan tool from vehicle.
- Connect scan tool to Techline Terminal. Select SERVICE PROGRAMMING SYSTEM. Select TERMINAL TO SCAN TOOL PROGRAMMING method. Select DONE. Follow instructions on communications setup screen.
- Select PROGRAM BODY FUNCTION CONTROLLER. Select PROGRAM at SUMMARY screen. Techline Terminal will download information to scan tool. Disconnect scan tool from Techline Terminal.
- Connect scan tool to vehicle. Select SERVICE PROGRAMMING from MAIN MENU. Follow prompts on vehicle year and type. Press BODY FUNCTION CONTROLLER soft key on scan tool. BFC will be programmed with configuration file stored in scan tool.
- Reprogram theft deterrent system. See ANTI-THEFT SYSTEM article.
- To reprogram new BFC password into PCM, perform the following procedures: Attempt to start vehicle. Vehicle will stall. Leave ignition on until theft system indicator light turns off (about 10 minutes). Turn ignition off. Attempt to start vehicle. Vehicle should start, and password is now learned.
Factory Service Tools
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When to See a Mechanic
Stop DIY work and contact a certified mechanic immediately if any of the following apply:
- β’ You smell fuel, burning insulation, or see smoke.
- β’ Brakes feel soft, pull hard to one side, or make grinding noises.
- β’ The engine overheats, stalls repeatedly, or misfires under load.
- β’ You are missing required tools, torque specs, or safe lifting equipment.
- β’ You are not confident in the next step or safety outcome.
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