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Home >> Infiniti >> 2017 >> QX80 Base, RWD >> Repair and Diagnosis (Single Page) >> Engine Performance >> System >> Engine Control System (DTCS) (3 Of 4) >> DTC/Circuit Diagnosis >> DTC P1551, P1552: Battery Current Sensor >> DTC Logic >> DTC Detection Logic
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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 open or shorted.)

  • Battery current sensor
  • Sensor power supply 2
P1552 Battery current sensor circuit high input
(BAT CURRENT SENSOR)
An excessively high voltage from the sensor is sent to ECM.