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Home >> Nissan-Datsun >> 2004 >> Altima Base, Standard >> Repair and Diagnosis >> Engine Performance >> Engine Control System - 2.5L >> DTC P2138: App Sensor >> Component Inspection >> Accelerator Pedal Position Sensor
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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: ECM Terminals & Ground Voltage Checking Conditions
    G02884928Courtesy of NISSAN MOTOR CO., U.S.A.
    Fig 2: Checking Voltage Between ECM Terminals 106, 98 & Ground
    G02884929Courtesy of NISSAN MOTOR CO., U.S.A.
  4. If NG, replace accelerator pedal assembly and go to the next step.
  5. Perform "ACCELERATOR PEDAL RELEASED POSITION LEARNING ".
  6. Perform "THROTTLE VALVE CLOSED POSITION LEARNING ".
  7. Perform "IDLE AIR VOLUME LEARNING ".