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HOMESERVICE MANUALSINFINITI2019Q70 3.7 LUXE, AWDREPAIR AND DIAGNOSISEXTERNAL PAGESDIFFERENT VARIANT/TRIMSECTION 13 (ENGINE CONTROL SYSTEM (5.6L) (DTC/CIRCUIT DIAGNOSIS) (6 OF 9))DTC/CIRCUIT DIAGNOSISDTC P1553: BATTERY CURRENT SENSORDTC LOGICDTC DETECTION LOGIC
2019 Infiniti Q70 3.7 Luxe, AWD

DTC Detection Logic

2019 Infiniti Q70 3.7 Luxe, AWDSECTION DTC Detection Logic
WARNING: This page is about a different variant/trim than selected.

DTC No.

Trouble diagnosis name

(Trouble diagnosis content)

DTC detecting condition

Possible cause

P1553

BAT CURRENT SENSOR

(Battery current sensor performance)

The signal voltage transmitted from the sensor to ECM is higher than the amount of the maximum power generation.
  • Harness or connectors

    (Fuel rail pressure sensor circuit is shorted.)

    (Engine oil pressure sensor circuit is shorted.)

    (Power steering pressure sensor circuit is shorted.)

    [Exhaust valve timing control position sensor (bank 2) circuit is shorted.]

    [Throttle position sensor (bank 2) circuit is shorted.]

    (Battery current sensor circuit is open or shorted.)

    [Camshaft position sensor (bank 2) circuit is shorted.]

    (Accelerator pedal position sensor 2 circuit is shorted.)

    (Manifold absolute pressure sensor circuit is shorted.)

    (Refrigerant pressure sensor circuit is shorted.)

  • Fuel rail pressure sensor
  • Engine oil pressure sensor
  • Power steering pressure sensor
  • Exhaust valve timing control position sensor (bank 2)
  • Throttle position sensor (bank 2)
  • Battery current sensor
  • Camshaft position sensor (bank 2)
  • Accelerator pedal position sensor 2
  • Manifold absolute pressure sensor
  • Refrigerant pressure sensor
RENDER: 1.0x

NO RELATED

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Stop DIY work and contact a certified mechanic immediately if any of the following apply:

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  • • The engine overheats, stalls repeatedly, or misfires under load.
  • • You are missing required tools, torque specs, or safe lifting equipment.
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