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Home >> Infiniti >> 2012 >> G37 Base, 2D Convertible >> Repair and Diagnosis >> External Pages >> Different car >> Section 287 (Engine Control System - DTCS P1148 To P2A03) >> DTC P1554: Battery Current Sensor >> Component Function Check

Component Function Check

WARNING: This page is about a different car, the 2012 Infiniti G25. However, it is still accessible from the selected car via links, so may be relevant.
  1. PRECONDITIONING

    TESTING CONDITION: 

    • Before performing the following procedure, confirm that battery voltage is more than 12.8 V at idle. 
    • Before performing the following procedure, confirm that all load switches and A/C switch are turned OFF. 

      GO TO 2.

  2. PERFORM COMPONENT FUNCTION CHECK

    With CONSULT 

    1. Start engine and let it idle.
    2. Select "BAT CUR SEN" in "DATA MONITOR" mode with CONSULT.
    3. Check "BAT CUR SEN" indication for 10 seconds.

      "BAT CUR SEN" should be above 2, 300 mV at least once. 

    Without CONSULT 

    1. Start engine and let it idle.
    2. Check the voltage between ECM harness connector terminals as follows.
      ECM Voltage (V)
      Connector + -
      Terminal Terminal
      F102 91 (Battery current sensor signal) 95 Above 2.3 at least once

      Is the inspection result normal? 

      YES: INSPECTION END

      NO: Go to "DIAGNOSIS PROCEDURE ".