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Home >> Infiniti >> 2004 >> I35 >> Repair and Diagnosis >> Engine Performance >> System >> Engine Control System >> DTC P0122 & DTC P0123: TP Sensor >> Component Inspection >> Throttle Position Sensor
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Throttle Position Sensor

Fig 1: Displaying Terminal Voltage Table Of Throttle Position Sensor
G00786579Courtesy of NISSAN MOTOR CO., U.S.A.
  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 83 (TP sensor 1), 84 (TP sensor 2) and engine ground under the following conditions.
    Fig 2: Checking Throttle Position Sensor
    G00786580Courtesy 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  .