2002 Mercedes Benz ML320FACTORY OEM SERVICE PROCEDURE

Reverse Light Switch (S16/2)

Manual Transmission Only -Β  Connect DVOM between ME-SFI control module connector "A" terminal No. 3 and ME-SFI control module connector "D" terminal No. 14 (socket box terminals No. 3 and 46). Turn ignition on. With reverse gear not engaged, voltage should be less than one volt. With reverse gear engaged, voltage should be 11-14 volts. If voltage is within specification, test is complete. If voltage is not within specification, possible causes are wiring harness failure or clutch reverse light switch (S16/2) 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:

  • 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.