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.
2000 Mercedes Benz SL600FACTORY OEM SERVICE PROCEDURE
Left Cylinder Bank ME-SFI Control Module (N3/11)
NOTE:
When performing test procedure, make DVOM test connections directly at CAN module or left cylinder bank ME-SFI control module (N3/11) connector.
- CAN Data Bus, Left Cylinder Bank ME-SFI Control Module (N3/11) -
Turn ignition off. Connect DVOM between left cylinder bank ME-SFI control module connector 1 terminals No. 60 and 61 (socket box terminals No. 60 and 61). Resistance should be 75-85 ohms. If resistance is within specification, go to next step. If resistance is not within specification, possible cause is Controller Area Network (CAN) failure. Go to next step.NOTE: Next step refers to Controller Area Network (CAN) module. Vehicle will be equipped with either a Remote Control Locking (RCL) control module (N54) or Drive Authorization System (DAS) control module (N54/1).
- CAN Module Resistance - Turn ignition off. Disconnect Controller Area Network (CAN) module 2-pin connector. Connect DVOM directly to CAN control module terminals. Resistance should be 115-125 ohms. If resistance is within specification, go to next step. If resistance is not within specification, possible cause is CAN module failure. Repair as necessary.
- CAN In Left Cylinder Bank ME-SFI Control Module (N3/11) - Turn ignition off. Connect DVOM between left cylinder bank ME-SFI control module connector 1 terminals No. 60 and 61. Resistance should be 235-245 ohms. If resistance is within specification, test is complete. If resistance is not within specification, possible cause is left cylinder bank ME-SFI control module (N3/11) failure. Repair as necessary.
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:
- • 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.