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Home >> Infiniti >> 2012 >> M35h >> Repair and Diagnosis >> Engine Performance >> System >> Engine Control System - DTCS P0500 To P31A5 >> DTC P1550: Battery Current Sensor >> Component Inspection
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Component Inspection

  1. CHECK BATTERY CURRENT SENSOR
    1. Turn ignition switch OFF.
    2. Reconnect harness connectors disconnected.
    3. Disconnect 12V battery negative cable (1).
    4. Install jumper cable (A) between 12V battery negative terminal and body ground.
    5. Turn ignition switch ON.
    6. Check the voltage between ECM harness connector terminals as per the following.
      Fig 1: Installing Jumper Cable Between Battery Negative Terminal And Body Ground
      G08255742Courtesy of NISSAN NORTH AMERICA, INC.
      ECM Voltage (V)
      Connector + -
      Terminal Terminal
      F102 91
      (Battery current sensor signal)      		 95 Approx. 2.5

      Before measuring the terminal voltage, confirm that the 12V battery is fully charged. Refer to "HOW TO HANDLE 12V BATTERY ".

      Is the inspection result normal? 

      YES: INSPECTION END

      NO: Replace 12V battery negative cable assembly.

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