So I'm driving down the road the other day when all of the sudden my 2011 F-150 display shows a wrench and says service advance track. The truck also stops accelerating and throws a few codes. The codes are P2111, actuator control system stuck open, and P2135, Throttle/pedal position sensor/swith "A/B" voltage correlation.
The truck runs at a rough idle now. When I first start it, the accelerator pedal with let me rev the engine but after a few seconds it goes back to an idle, shows the advance track message, and won't accelerate. If I clear the codes the check engine light does not come on until it slows back to an idle. I found the connector to the throttle bady had several wires with worn insulation so I replaced that plug. no help, but still needed to be done. I am leaning towards the throttle body needing to be replaced but that would not explain the advance track warning. there are no codes shown for the advance track just the warning on the display. I did check every plug I could find none were loose I seperated them and plugged them.

Any thoughts on what caused this? I am baffled.

Thanks in advance..

 

Do a search. It’s been beat to death here.

 

Yeah I see advance track has a few posts, but none that have my symptoms. My abs light does not come on, my blinkers work, My truck does not accelerate, there is no tree stuck in the wheel. I have tried disconecting and reconnecting every plug I could find. I was just hoping for some insight before forking out dough.

But hey thanks for the response.

 

Both point to the throttle body. Advance track comes up for everything, worry about the codes you have first. Are you up to in depth electrical testing? I can post the tests if you want. Would need to know what truck you have.

You did check for obstruction in the intake and throttle, right?

 

There is no obsruction that I can see. I was su[prised at how good the airfilter looked to be honest. I probably am up to indepth testing if I have the right equipment. standard volt meter battery tester is all I havenis all I really have .

Thanks for the post and offer.

 

So the throttle body that I ordered came a day early and I went ahead and put it in. It seems to have fixed it. I really don't understand why the truck with would show the service advance track because the throttle body went out but I guess like Spiky said it comes up for everything.

Thanks to all who gave this some thought and those who responded.

 

Cool. There's often derivative stuff that isn't the real problem. Gotta figure out what's real and what's not.

 

Straight up guess, but if it's the electronic control of the throttle for Adv Track, that'll be why.