2004 Nissan-Datsun Sentra SE-RFACTORY OEM SERVICE PROCEDURE

Key Fob Battery and Function Check

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

    Remove battery and measure voltage across battery positive and negative terminals, (+) and (-).

    Fig 1: Measuring Voltage Across Battery Positive & Negative Terminals
    G00867069Courtesy of NISSAN MOTOR CO., U.S.A.

    Voltage: 2.5V - 3.0V 

    NOTE: Key fob does not function if battery is not set correctly.

    OK or NG 

    1. OK: GO TO 2
    2. NG: Replace battery.
  2. CHECK KEY FOB FUNCTION 

    With CONSULT-II

    Check key fob function in "DATA MONITOR" mode with CONSULT-II.

    Fig 2: Monitor Item Condition Chart
    G00867070Courtesy of NISSAN MOTOR CO., U.S.A.

    When pushing each button of key fob, the corresponding monitor item should be turned as follows. 

    Fig 3: Data Monitor Display
    G00867071Courtesy of NISSAN MOTOR CO., U.S.A.

    OK or NG 

    1. OK: Key fob is OK. Further inspection is necessary. Refer to "SYMPTOM CHART  ".
    2. NG: Replace key fob.
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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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