No throttle response on 2012 dodge avenger electrical sys...

Q: No throttle response on 2012 dodge avenger

asked by on October 06, 2016

got a jump on a bad battery, cable clamp and positive post coroded, replaced battery and cable clamp, when started for the first time the etc light and the code P0562 came up. pulled and cleaned accelerator, replaced throttle body, removed and tested alternator, it was good, checked fuses, we reset the system with hand scan tool didnt work. did a relearn on the cars system by disconnecting the battery, touching + and - cables together for 10 seconds, then left the cables, not touching anything for one hour. re connected and put battery back. car sounded for a second that it was going to get some response, then just as quick nothing. it idles, but nothing when accelerator pressed. any suggestions that i can try before we get a new ecm.
My car has an automatic transmission.

In the future, please include the motor size. Thanks.

Your electronic throttle system consists of the throttle pedal assembly with an accelerator pedal position sensor, the throttle body which consist of a TPS (Throttle Position Sensor), throttle plate actuator, the ECM and other sensors that the ECM uses to decide the throttle position as well as many other factors. You have done a good job with the basics. The P0562 code simply states there has been a power interruption, which you already know.

What I would be doing next is studying the scan tool data. The first thing I would be looking at is the throttle pedal sensor data. If this has failed, the ECM won’t see the throttle pedal move. I have replaced very few ECM’s in my 20 plus years working on cars. Before I do, I do as many tests as I can think of to prove it is indeed the ECM. Even so, Chrysler has been the largest recipient of those replacements. I would check all voltage inputs and grounds at the ECM. Followed by making sure all the other inputs are being received by the ECM. This is often quite a task, so don’t take it lightly.

It is conceivable something has been damaged during the jump start. The proper procedure to jump start modern cars is to turn on all accessories when jumping the car. This will allow more paths for potential electrical spikes to travel instead of the ECM or other more delicate systems.

If you should require more help with this repair, I recommend having one of our mobile technicians help you with a thorough inspection of your unresponsive gas pedal. Good luck.

Good luck!

Was this answer helpful?
The statements expressed above are only for informational purposes and should be independently verified. Please see our terms of service for more details

Get an instant quote for your car

Our certified mechanics come to you ・Backed by 12-month, 12,000-mile guarantee・Fair and transparent pricing

Get a quote

What others are asking

I put a engine out of a 2007 malibu in the 2005 cobolt. Why will the engine not start

Hi there. Check all of the sensors to the engine and make sure that all of them are connected. Check the computer and see if there is an wires disconnected to it. A loose wire on any electrical system will...

How do you adjust the position of the power seat?

Being able to adjust your seat is important for comfort, but it’s also essential for driving safely. You need to be able to adjust the seat so that you can reach the steering wheel and pedals easily, as well as...

I'm having problems with my blower motor on my 2012 Nissan Maxima.

There is no resistor in the circuit, at least not of the type that controls blower speed. Instead, the speed control in your vehicle relies on a digital signal delivered via pulse width modulation. And, in your application at least...

Related articles

P0078 OBD-II Trouble Code: Exhaust Valve Control Solenoid Circuit (Bank 1)
P0078 P0078 code definition Exhaust Valve Control Solenoid Circuit (Bank 1) What the P0078 code means P0078 is a generic OBD2 code indicating that the Engine Control Module (ECM) has tried to control the Bank 1 exhaust valve control...
P0075 OBD-II Trouble Code: Intake Valve Control Solenoid Circuit (Bank 1)
P0075 P0075 code definition Intake Valve Control Solenoid Circuit (Bank 1) What does the P0075 code mean? The P0075 code varies by manufacturer, but it is a general powertrain trouble code for 1996 and newer cars with Variable Valve Timing...
Symptoms of a Bad or Failing Air Injection Hose
Check your car's air injection hose for signs of damage. If there are idling issues or the Check Engine Light turns on, you may have to replace it.