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Electronic Throttle Unit

By Bret Bodas, April 15, 2008

The electronic throttle unit opens and closes the throttle blade based on input from various engine control sensors, including the accelerator pedal.

Symptoms of a Bad or Failing Electronic Throttle Unit

  • Illumination of the Check Engine Light
  • Lack of power
  • Stalling
  • Rough idle

Electronic Throttle Unit Related Repair Advice

  • The throttle position sensor can be at the accelerator pedal or mounted remotely and cable operated
  • The electronic throttle unit also controls the idle and cruise control operation
  • These systems have a "limp home mode" that will allow the vehicle to be operated at low speed when a fault is detected

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