2004 Infiniti M45FACTORY OEM SERVICE PROCEDURE

ECM Terminals And Reference Value: Preparation

  1. ECM is located behind the glove box. For this inspection, remove glove box.
    Fig 1: Locating & Inspection ECM
    G00795582Courtesy of NISSAN MOTOR CO., U.S.A.
  2. Remove ECM harness protector.
  3. Perform all voltage measurements with the connector connected. Extend tester probe as shown to perform tests easily.
    • Open harness securing clip to make testing easier.
    • Use extreme care not to touch 2 pins at 1 time.
    • Data is for comparison and may not be exact.
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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