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Home >> Infiniti >> 2003 >> FX45 >> Repair and Diagnosis >> Engine Performance >> System >> Engine Controls - Self-Diagnostics >> Diagnostic Tests >> DTC P0222: Throttle Position Sensor 1 Circuit Low Input Or DTC P0223: Throttle Position Sensor 1 Circuit High Input >> Component Inspection

Component Inspection

  1. Reconnect all harness connectors.
  2. Perform THROTTLE VALVE CLOSED POSITION LEARNING. See THROTTLE VALVE CLOSED POSITION LEARNING  under PROGRAMMING.
  3. Turn ignition switch on. Set selector lever to "D" position.
  4. Check voltage between ECM terminals No. 50 (TP sensor 1 signal), No. 69 (TP sensor 2 signal) and engine ground. For specifications, see Figure .
  5. If voltages are not to specification, replace electric throttle actuator.
  6. Perform THROTTLE VALVE CLOSED POSITION LEARNING. See THROTTLE VALVE CLOSED POSITION LEARNING  under PROGRAMMING.
  7. Perform IDLE AIR VOLUME LEARNING. See IDLE AIR VOLUME LEARNING  under PROGRAMMING.
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