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HOMESERVICE MANUALSINFINITI2019Q70 3.7 LUXE, AWDREPAIR AND DIAGNOSISACCESSORIES & EQUIPMENTDRIVERS ASSISTANCE SYSTEMS - ADASCRUISE CONTROL SYSTEM (DTC/CIRCUIT DIAGNOSIS)DTC/CIRCUIT DIAGNOSISPOWER SUPPLY AND GROUND CIRCUITDIAGNOSIS PROCEDURE
2019 Infiniti Q70 3.7 Luxe, AWD

Diagnosis Procedure

2019 Infiniti Q70 3.7 Luxe, AWDSECTION Diagnosis Procedure
  1. CHECK ICC SENSOR POWER SUPPLY CIRCUIT 

    Check voltage between ICC sensor harness connector and ground.

    Terminal

    Condition

    Voltage

    (Approx.)

    (+)

    (-)

    ICC sensor

    Ground

    Ignition switch

    Connector

    Terminal

    E33

    1

    OFF

    0 V

    ON

    Battery voltage

    Is the inspection result normal?

    YES

    GO TO 2.

    NO

    Repair the ICC sensor power supply circuit.

  2. CHECK ICC SENSOR GROUND CIRCUIT 
    1. Turn the ignition switch OFF.
    2. Disconnect the ICC sensor connector.
    3. Check for continuity between ICC sensor harness connector and ground.

      ICC sensor

      Ground

      Continuity

      Connector

      Terminal

      E33

      8

      Existed

    Is the inspection result normal?

    YES

    INSPECTION END

    NO

    Repair the ICC sensor ground circuit.

RENDER: 1.0x

NO RELATED

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When to See a Mechanic

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

  • • You smell fuel, burning insulation, or see smoke.
  • • Brakes feel soft, pull hard to one side, or make grinding noises.
  • • The engine overheats, stalls repeatedly, or misfires under load.
  • • You are missing required tools, torque specs, or safe lifting equipment.
  • • You are not confident in the next step or safety outcome.