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Home >> Infiniti >> 2004 >> FX35 RWD >> Repair and Diagnosis (Single Page) >> Engine Performance >> Engine Control System >> DTC P0122 & P0123 TP Sensor >> Component Inspection >> Throttle Position Sensor
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Throttle Position Sensor

  1. Reconnect all harness connectors disconnected.
  2. Perform THROTTLE VALVE CLOSED POSITION LEARNING .
  3. Turn ignition switch ON.
  4. Set selector lever to D position.
  5. Check voltage between ECM terminals 50 (TP sensor 1 signal), 69 (TP sensor 2 signal) and body ground under the following conditions.
    Fig 1: Testing ECM Power To Throttle Position Sensor 1 & 2
    G00729412Courtesy of NISSAN MOTOR CO., U.S.A.
    Fig 2: Identifying ECM Power To Throttle Position Sensor 1 & 2 Specifications
    G00729411Courtesy of NISSAN MOTOR CO., U.S.A.
  6. If NG, replace electric throttle control actuator and Go to the next step.
  7. Perform THROTTLE VALVE CLOSED POSITION LEARNING .
  8. Perform IDLE AIR VOLUME LEARNING .