2012 Infiniti M37 BaseFACTORY OEM SERVICE PROCEDURE

Input/Output Signal

It transmits/receives each signal from the following control unit via communication line.

Component parts Control signal
4WAS main control unit Transmits/receives the following signal to 4WAS main control unit via communication line(1).
  • 4WAS system control signal
Steering angle sensor Transmits the following signal to 4WAS main control unit via CAN communication line.
  • Steering angle sensor signal
ABS actuator and electronic unit (control unit) Transmits the following signal to 4WAS main control unit via CAN communication line.
  • Vehicle speed signal
ECM Transmits the following signal to 4WAS main control unit via CAN communication line.
  • Engine speed signal
Combination meter Receives the following signal to 4WAS main control unit via CAN communication line.
  • 4WAS warning lamp signal
A/C auto amp. Transmits the following signal to 4WAS main control unit via CAN communication line.
  • Drive mode select switch signal
(1) Communication line between 4WAS front control unit and 4WAS main control unit
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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