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Home >> Infiniti >> 2008 >> QX56 AWD >> Repair and Diagnosis >> Engine Performance >> Engine Control Systems >> Engine Control System - DTCS P1148 To P2A03 >> DTC P2122, P2123: App Sensor >> Component Inspection >> Accelerator Pedal Position Sensor

Accelerator Pedal Position Sensor

  1. Reconnect all harness connectors disconnected.
  2. Turn ignition switch ON.
  3. Check voltage between ECM terminals 106 (APP sensor 1 signal), 98 (APP sensor 2 signal) and ground under the following conditions.
    VOLTAGE REFERENCE CHART

    Terminal Accelerator pedal Voltage
    106 (Accelerator pedal position sensor 1) Fully released 0.5 - 1.0V
    Fully depressed 4.2 - 4.8V
    98 (Accelerator pedal position sensor 2) Fully released 0.25 - 0.5V
    Fully depressed 2.0 - 2.5V
  4. If NG, replace accelerator pedal assembly and go to next step.
  5. Perform "ACCELERATOR PEDAL RELEASED POSITION LEARNING ".
  6. Perform "THROTTLE VALVE CLOSED POSITION LEARNING ".
  7. Perform "IDLE AIR VOLUME LEARNING ".
    Fig 1: Checking ECM Connector Voltage
    G05739679Courtesy of NISSAN MOTOR CO., U.S.A.
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