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Home >> Infiniti >> 2013 >> M35h >> Repair and Diagnosis >> Engine Performance >> System >> Engine Control System (Diagnostic Codes & Symptom Tests) >> DTC/Circuit Diagnosis >> DTC P1554: Battery Current Sensor >> Component Function Check
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Component Function Check

  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. Perform "INSPECTION MODE 5". Refer to "WORK PROCEDURE (INSPECTION MODE 5) ".
    2. Start engine and let it idle.
    3. Select "BAT CUR SEN" in "DATA MONITOR" mode of "ENGINE" with CONSULT.
    4. Check "BAT CUR SEN" indication for 10 seconds.

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

    Without CONSULT 

    1. Perform "INSPECTION MODE 5". Refer to "WORK PROCEDURE (INSPECTION MODE 5) ".
    2. Start engine and let it idle.
    3. Check the voltage between ECM harness connector terminals as per the following.
      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 "