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Home >> Infiniti >> 2009 >> G37 Base, 2D Coupe >> Repair and Diagnosis >> Engine Performance >> System >> Engine Control System - DTCS P1233 Through P2A03 - G37 Coupe >> DTC P1554: Battery Current Sensor >> Component Function Check

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-III 

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

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

Without CONSULT-III 

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

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 "