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Home >> Infiniti >> 2008 >> QX56 AWD >> Repair and Diagnosis >> Engine Performance >> Engine Control Systems >> Engine Control System - DTCS P1148 To P2A03 >> DTC P2135: 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 ground under the following conditions.
    VOLTAGE REFERENCE CHART

    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
    Fig 1: Checking Throttle Position Sensor Voltage
    G05739689Courtesy 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 ".