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Home >> Infiniti >> 2021 >> QX50 Essential, FWD >> Repair and Diagnosis >> Engine Performance >> System >> Engine Control System (DTC/Circuit Diagnosis) (4 Of 5) >> DTC/Circuit Diagnosis >> DTC P2138: App Sensor >> Component Inspection
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Component Inspection

  1. CHECK ACCELERATOR PEDAL POSITION SENSOR 
    1. Turn ignition switch OFF.
    2. Reconnect all harness connectors disconnected.
    3. Turn ignition switch ON.
    4. Check the voltage between ECM harness connector terminals as per the following condition.

      ECM

      Condition

      Voltage

      Connector

      +

      -

      Terminal

      F16

      160

      161

      Accelerator pedal

      Fully released

      More than 0.36 V

      Fully depressed

      Less than 4.75 V

      153

      154

      Fully released

      Less than 4.75 V

      Fully depressed

      More than 0.36 V

    Is the inspection result normal?

    YES

    INSPECTION END

    NO

    Replace accelerator pedal assembly. Refer to Removal and Installation (WITHOUT DISTANCE CONTROL ASSIST SYSTEM), Removal and Installation (WITH DISTANCE CONTROL ASSIST SYSTEM).