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2006 chevy trailblazer 6 cylinder fault code 506,what do i check

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  • Cars & Trucks Master
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506 ? do you mean P0506 ? because there isn't a just 506 code .

Posted on Dec 12, 2016

  • 1 more comment 
  • Jeff Armer Dec 12, 2016

    DTC P0506 Idle Speed Low

  • Jeff Armer Dec 12, 2016

    You check it into the dealer

  • Jeff Armer Dec 12, 2016

    The throttle actuator control (TAC) motor is controlled by the powertrain control module (PCM). The DC motor located in the throttle body drives the throttle plate. In order to decrease idle speed, the PCM commands the throttle closed reducing air flow into the engine and the idle speed decreases. In order to increase idle speed, the PCM commands the throttle plate open allowing more air to pass the throttle plate. If the actual idle RPM does not match the desired idle RPM within a calibrated time, this DTC sets.

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Posted on Jan 02, 2017

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