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Home >> Infiniti >> 2008 >> FX35 RWD >> Repair and Diagnosis (Single Page) >> Engine Performance >> Engine Control Systems >> Engine Control System - DTCS U1000 Through P0153 (VQ35DE) >> 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.
    VOLTAGE SPECIFICATION

    Terminal Accelerator pedal Voltage
    50 (Throttle position sensor 1) Fully released More than 0.36V
    Fully depressed Less than 4.75V
    69 (Throttle position sensor 2) Fully released Less than 4.75V
    Fully depressed More than 0.36V
  6. If NG, replace electric throttle control actuator and go to the next step.
    Fig 1: Checking Voltage Between ECM Terminals 50, 69 And Body Ground
    G04911628Courtesy of NISSAN MOTOR CO., U.S.A.
  7. Perform "THROTTLE VALVE CLOSED POSITION LEARNING ".
  8. Perform "IDLE AIR VOLUME LEARNING ".
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