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Home >> Infiniti >> 2011 >> G25 Base >> Repair and Diagnosis >> Engine Performance >> System >> Engine Control System - DTCS P1211 To P2A03 - G25 Sedan >> 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 battery negative cable (1).

      <=: To body ground

      Fig 1: Installing Jumper Cable Between Battery Negative Terminal And Body Ground
      G07014982Courtesy 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 under the following conditions.
      TERMINALS 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.