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Chrysler Repair/'07 2.4L: electronic throttle control problem

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QUESTION: Roland,
If you could be so kind to consider my case.
I have a 2007 chrysler sebring 4 dr  with a 2.4 new world engine , It has electronic throttle control.
the electronic throttle control light came on with the engine running and it will not accelerate. I took it to auto zone but no codes came up. Yet , no acceleration when i press the accelerator in drive. It does accelerate in park. Any ideas. It will drive but not fast as the accelerator does not function in drive.
as always thank you for all you do.
Tom

ANSWER: Hi Tom,
Try turning the ignition key "on-off-on-off-on and leave on" doing that in 5 seconds or less elapsed time. The see if the odometer reading is replaced by a 4-digit fault code. It would seem there should be such a code that will give us more specifics. If that doesn't work, then an independent shop should do a code readout for under $40.
The throttle body has a 6-wire black plug which includes a 5V supply wire pink/yellow on pin 3 of the plug so you could start by verifying that is present with the key in the 'run' position.
The other wires are for throttle position sensor, throttle motor control, and ground and those are also connected to the powertrain control module. Examine the cord to the plug for any signs of damage.  I can tell you those connections so you can check for continuity of all 6 wires. Once those are verified, along with the fault code, we should be able to tell if its the wiring on the electronic throttle itself which is faulty.
Roland


Roland

---------- FOLLOW-UP ----------

QUESTION: Hi ,
I went to read the code but None to read, it seems to say "done" no p codes . then i started it up and it ran fine . I took it for a 5 min drive and no issues at all, So , Unless you have a suggestion , i will keep driving it and see how long this lasts. Is there anything i should be watching for? Would cleaning the throttle body be of any value ,you think?
thanks
tom

Answer
Hi Tom,
With no codes and "done" there must be no fault codes to tell us where to look. I doubt the throttle body cleaning would improve the situation. I would be more inclined to look at the plug/harness to the throttle body that I described which may have an intermittent "open" or short in one of the 6 wires. There is a similar plug/wires at the accelerator pedal as well.
Roland

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Roland Finston

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Free fast answer to your repair question about a Chrysler/Dodge/Plymouth car, minivan, SUV, or truck. Problems with electronically controlled engines and transmissions as well as body wiring problems are my specialty. This free troubleshoot advice forum helps you diagnose faults, minimize repair costs or do-it-yourself.

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I have do-it-yourself experience (50+ years) and a library of 100 1982-2011 Chrysler factory shop manuals and 20 multi-manual Chrysler Corp. CD's.

I was voted "Top Expert" 2010-2015, here at AllExperts, and have answered 20,000+ questions.

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Five decades as a 'do-it-yourselfer' on domestic and imported cars.

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Yahoo Autos Group called The Chrysler Lebaron Club (co-moderator)

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Advanced degrees in Physics/bruised knuckles

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"Top expert" of 2010, 2011, 2012, 2013, 2014 and 2015 here at Allexperts. Quickest "average response time" at Allexperts (currently no. 1).

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