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Home >> Infiniti >> 2022 >> QX80 Premium Select, RWD >> Repair and Diagnosis >> Engine Performance >> Engine Control Systems >> Engine Control System (Diagnostics) (1 Of 2) >> Component/Circuit Diagnosis >> 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 12.8 V or more 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 

    SYMBOL 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.

    SYMBOL WITHOUT CONSULT

    1. Start engine and let it idle.
    2. Check the voltage between ECM harness connector terminals as per the following.

      ECM

      Voltage (V)

      Connector

      +

      -

      Terminal

      Terminal

      F91

      38

      (Battery current sensor signal)

      43

      Approx. 2.5

    Is the inspection result normal?

    YES

    INSPECTION END

    NO

    Go to DTC Diagnosis Procedure .