Details
Category: Check Engine Light Repair and Diagnostic Help

P0506 - P0507
The Electronic Throttle Control (ETC) System uses various inputs from the powertrain control module (PCM). This system uses the inputs to control the idle speed through serial data circuits to the throttle actuator control (TAC) module.

The DC motor, which is located on the throttle body, activates the throttle plate. In order to decrease idle speed, the TAC module commands the throttle closed, reducing air flow into the engine, and the idle speed decreases. In order to increase the idle speed, the TAC module commands the throttle plate open, allowing more air in order to bypass the throttle plate. If the actual idle RPM does not match the desired idle RPM within a calibrated time, DTC P0506 sets.

If the actual idle RPM does not match the desired idle RPM within a calibrated time, DTC P0507 sets.

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Comments (4)
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  • Guest - craig miller

    I have a 2005 Chevy Hybrid and it did not start back up and it says it is the throttle acuator. What else could it be?

  • Guest - Tech

    In reply to: Guest - craig miller

    iIhave a 2005 Chevy Hybrid and it did not start back up and it says it is the throttle acuator. What else could it be?
    <br />What are the code(s) you are getting from the computer?

  • Guest - julius

    My 2001 Mitsubishi GDI Chariote has had idling while starting, but nomal after warming up.

  • Guest - Tech

    In reply to: Guest - julius

    Yes, this sounds like carbon build up in the throttle. Clean it out and then take car for a drive to blow out the cleaner from the engine. Then your car should idle good after that.