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Home >> Infiniti >> 2011 >> G37 IPL, Standard >> Repair and Diagnosis >> Engine Performance >> System >> Engine Control System (VQ37VHR) - DTC P100A Through P2A03 >> DTC P1554: Battery Current Sensor >> Component Inspection

Component Inspection

  1. CHECK BATTERY CURRENT SENSOR
    1. Turn ignition switch OFF.
    2. Reconnect harness connectors disconnected.
    3. Disconnect battery negative cable (1).
      Fig 1: Locating Battery Negative Cable
      G07169014Courtesy of NISSAN MOTOR CO., U.S.A.
    4. Install jumper cable (A) between battery negative terminal and body ground.
    5. Turn ignition switch ON.
    6. Check the voltage between ECM harness connector terminals as per the following.
    TERMINAL VOLTAGE REFERENCE CHART

    ECM Voltage (V)
    Connector + -
    Terminal Terminal
    F102 91 (Battery current sensor signal) 95 Approx. 2.5

    Before measuring the terminal voltage, confirm that the battery is fully charged. Refer to "HOW TO HANDLE BATTERY ".

    Is the inspection result normal? 

    YES: INSPECTION END

    NO: Replace battery negative cable assembly.