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.
1989 Oldsmobile Toronado V6-3800 3.8LFACTORY OEM SERVICE PROCEDURE
Body Control Module: Technical Service Bulletins
- Customer Interest
- All Technical Service Bulletins
- BCM - Codes E047, B333,B334,B335,B336/B337-New Diagnosis
- BCM - Radio, VIC & Phone Diagnostic Precaution
- Instruments - Clock Gains or Loses Time or Resets
- Instruments - Inoperative Low Oil Level Message
- BCM - Revised Code C553 (CRT) Wiring Diagram
- BCM - Updated Code B127 Facing Page Wiring Diagram
- A/C Erratic - Intermittent Message on DIC or Code B337
- BCM - Ordering Replacement EEPROMs For BCM
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.
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