LEMON Manuals: Even more car manuals for everyone: 1960-2025
Home >> Infiniti >> 2013 >> M56 Base >> Repair and Diagnosis >> Engine Performance >> System >> Engine Control System - DTCS P1087 To P2542 >> DTC P1551, P1552: Battery Current Sensor >> DTC Logic >> DTC Detection Logic
April 5, 2026: LEMON Manuals is launched! Read the announcement.

DTC Detection Logic

DTC No. Trouble diagnosis name (Trouble diagnosis content) DTC detecting condition Possible cause
P1551 BAT CURRENT SENSOR (Battery current sensor circuit low input) An excessively low voltage from the sensor is sent to ECM.
  • Harness or connectors (Battery current sensor circuit is shorted.)

    (Crankshaft position sensor circuit is open or shorted.)

    [Camshaft position sensor (bank 1) circuit is shorted.]

    (Accelerator pedal position sensor 2 circuit is shorted.)

    (EVAP control system pressure sensor circuit is shorted.)

    (Refrigerant pressure sensor circuit is shorted.)

  • Battery current sensor
  • Crankshaft position sensor
  • Camshaft position sensor (bank 1)
  • Accelerator pedal position sensor 2
  • EVAP control system pressure sensor
  • Refrigerant pressure sensor
P1552 Battery current sensor circuit high input (BAT CURRENT SENSOR) An excessively high voltage from the sensor is sent to ECM.