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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 P1239, P2135: TP SENSORCOMPONENT INSPECTION (THROTTLE POSITION SENSOR)
2019 Infiniti Q70 3.7 Luxe, AWD

Component Inspection (Throttle Position Sensor)

2019 Infiniti Q70 3.7 Luxe, AWDSECTION Component Inspection (Throttle Position Sensor)
WARNING: This page is about a different variant/trim than selected.
  1. CHECK THROTTLE POSITION SENSOR 
    1. Turn ignition switch OFF.
    2. Reconnect all harness connectors disconnected.
    3. Perform Description .
    4. Turn ignition switch ON.
    5. Set selector lever position to D.
    6. Check the voltage between ECM harness connector terminals under the following conditions.

      ECM

      Condition

      Voltage (V)

      Connector

      +

      -

      Terminal

      Terminal

      F116

      78

      [TP sensor 1 (bank 1)]

      85

      Accelerator pedal: Fully released

      More than 0.36

      Accelerator pedal: Fully depressed

      Less than 4.75

      81

      [TP sensor 1 (bank 2)]

      85

      Accelerator pedal: Fully released

      More than 0.36

      Accelerator pedal: Fully depressed

      Less than 4.75

      80

      [TP sensor 2 (bank 1)]

      85

      Accelerator pedal: Fully released

      Less than 4.75

      Accelerator pedal: Fully depressed

      More than 0.36

      71

      [TP sensor 2 (bank 2)]

      85

      Accelerator pedal: Fully released

      Less than 4.75

      Accelerator pedal: Fully depressed

      More than 0.36

    Is the inspection result normal?

    YES

    INSPECTION END

    NO

    GO TO 2.

  2. REPLACE ELECTRIC THROTTLE CONTROL ACTUATOR 

    Replace malfunctioning electric throttle control actuator. Refer to Removal and Installation .

    INSPECTION END

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.