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It's the Throttle Actuator Control Module,Dealer repair price of around $600.00. Good Luck :-)
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This repair is going to require a lot more equipment and know-how than you can get on a code reader. Suggest you let the dealer do this job.
P2112- Throttle actuator control system stuck closed. The throttle on your vehicle is not controlled by a cable but by a actuator motor in conjunction with a sensor inside the accelerator pedal. This fault indicates there is a problem with the throttle side of the system. The throttle is either binding, slow to respond, completely stuck or has failed. Other possible causes include problems in the wiring (open/short circuit) faulty connection(s), or battery voltage problems could also cause this. I would try checking the connections to the throttle actuator, and if you are up to it carefully clean the throttle to see if you can save it. Good luck!
the temperature control actuator is on top of the heater box under the dash. you have to remove the dash to get at it. a repair manuual will show what screws to remove
How can you repair the throttle position
it depends on the type of Actuator that you are talking about?
I am going thru this same prob right now....damn GM! This should have been recalled! From what I am being told u cannot just change this sensor. You have to have the whole throttle body replaced and its VERY expensive repair.
You need to have the system checked for codes. You can then diagnose and find and repair the cause.
If the cruise control system fails to power on, i.e. the light on the cruise control switch does not light, check the fuse. If the fuse is not blown, there may be a problem with the wiring or the cruise control module itself. If the system powers on but it fails to keep the vehicle at speed when engaged, the vacuum hose between the cruise control module and the actuator may be faulty. The cruise control module can be found at the rear of the engine compartment near the driver's side door. A black vacuum hose runs from the module to the actuator, which is a round black plastic object which is connected with a cable to the throttle. Disconnect the vacuum hose from the actuator and inspect the end. If it is cracked, you may be able to cut 1/4" from the end of the hose and reconnect it.
The first step is have the system checked for trouble codes. The cause will be the main factor in the repair.
no it is not that expensive to repair