2004 Nissan-Datsun Sentra SE-RFACTORY OEM SERVICE PROCEDURE

Check Key Switch

WARNING: This page is about a different car, the 2004 Nissan Murano. However, it is still accessible from the selected car via links, so may be relevant.
  1. CHECK KEY SWITCH INPUT SIGNAL

    With CONSULT-II 

    Check ignition key switch "IGN ON SW" in "DATA MONITOR" mode with CONSULT-II.

    • When key is inserted in ignition key cylinder

      KEY ON SW: ON 

    • When key is removed from ignition key cylinder

      KEY ON SW: OFF 

      Fig 1: CONSULT-II Function Display Data Monitor
      G00767845Courtesy of NISSAN MOTOR CO., U.S.A.

    Without CONSULT-II

    Check voltage between BCM connector and ground.

    Fig 2: Terminal Voltage Chart
    G00767846Courtesy of NISSAN MOTOR CO., U.S.A.
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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.

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