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Home >> Infiniti >> 2004 >> QX56 RWD >> Repair and Diagnosis >> Engine Performance >> System >> Engine Control System >> DTC P2127, P2128: 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.
    Fig 1: Checking Voltage Between ECM Terminals 106 (APP Sensor 1 Signal) & 98 (APP Sensor 2 Signal) ( 1 Of 2)
    G02691874Courtesy of NISSAN MOTOR CO., U.S.A.
    Fig 2: Checking Voltage Between ECM Terminals 106 (APP Sensor 1 Signal) & 98 (APP Sensor 2 Signal) ( 2 Of 2)
    G02691875Courtesy of NISSAN MOTOR CO., U.S.A.
  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 .