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Home >> Infiniti >> 2011 >> M37 Base >> Repair and Diagnosis >> Engine Performance >> System >> Engine Control System - DTCS P1233 To P2A03 >> DTC P1556, P1557: Battery Temperature Sensor >> DTC Logic >> DTC Detection Logic
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DTC Detection Logic

DTC DETECTING CONDITION AND POSSIBLE CAUSES

DTC No. Trouble diagnosis name (Trouble diagnosis content) DTC detecting condition Possible cause
P1556 BAT TMP SEN/CIRC (Battery temperature sensor circuit low input) Signal voltage from Battery temperature sensor remains 0.16V or less for 5 seconds or more.
  • Harness or connectors [Battery current sensor (Battery temperature sensor) circuit is shorted.]

    (Crankshaft position sensor circuit is open or shorted.)

    [Camshaft position sensor (bank 2) 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 (Battery temperature sensor)

  • Crankshaft position sensor
  • Camshaft position sensor (bank 2)
  • Accelerator pedal position sensor 2
  • EVAP control system pressure sensor
  • Refrigerant pressure sensor
P1557 BAT TMP SEN/CIRC (Battery temperature sensor circuit high input) Signal voltage from Battery temperature sensor remains 4.84V or more for 5 seconds or more.