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Home >> Infiniti >> 2011 >> M56 Base >> Repair and Diagnosis >> External Pages >> Different car >> Section 294 (Engine Control System - DTCS P1233 To P2A03) >> DTC P1556, P1557: Battery Temperature Sensor >> DTC Logic >> DTC Detection Logic

DTC Detection Logic

WARNING: This page is about a different car, the 2011 Infiniti M37. However, it is still accessible from the selected car via links, so may be relevant.
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.
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