2003 Infiniti M45FACTORY OEM SERVICE PROCEDURE

Checking of A/T Position

  1. Place selector lever in "P" position, and turn ignition switch ON (engine stop).
  2. Check that selector lever can be shifted to other than "P" position when brake pedal is depressed. Also check that selector lever can be shifted from "P" position only when brake pedal is depressed.
  3. Move the selector lever and check for excessive effort, sticking, noise or rattle.
  4. Confirm the selector lever stops at each position with the feel of engagement when it is moved through all the positions. Check whether or not the actual position the selector lever is in matches the position shown by the shift position indicator and the transmission body.
  5. The method of operating the lever to individual positions correctly should be as shown in the figure.
    Fig 1: Checking A/T Position
    G02021657Courtesy of NISSAN MOTOR CO., U.S.A.
  6. Confirm the back-up lamps illuminate only when lever is placed in the "R" position. Confirm the back-up lamps does not illuminate when selector lever is in the "P" or "N" position with the lever pushed against the "R" position.
  7. Confirm the engine can only be started with the selector lever in the "P" and "N" positions.
  8. Check that transmission is locked completely in "P" position.
  9. When selector lever is set to manual shift gate, check that manual mode is displayed on combination meter.

    Shift selector lever to "+" and "-" sides, and check that set shift position changes.

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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