Hey Scotty you’re the man. I have a 2014 Toyota Camry SE with about 150,000 miles I plugged in my Autel scanner and d while running a live data read , “acceleration pedal E “ is too high..
not sure what this mean.
I notice my rpm drops really fast while on the freeway
Some Toyota pedals were recalled. Make sure you check your VIN.
https://carkiller.com/scottykilmer/qa/recall/
The short answer is, inspect the wiring and connector at the APP sensor and if it looks good then the APP sensor is probably faulty and needs to be replaced.
Here's why. (long answer)
| Throttle Pedal Position Sensor Switch "E" Circuit High Input |
means that the computer received a voltage signal from the "E" circuit APP (accelerator pedal position) sensor that exceeded 4.8 volts.
In your case it received that high voltage signal from the "E circuit" APP sensor input to the ECM.
Here's the circuit. I dissected it with a dotted red line and labeled the circuits "D" and "E" to make it easier to see how each sensor in the APP sensor assembly is provided a seperate 5 volt Power input from different pins on the ECM.
Each are provided a separate Ground input from different pins on the ECM.
And each sensor provides its voltage output signal to different pins on the ECM.
This is part of the "failsafe" design.
I highlighted the APP sensor output signal wires in Violet.
What's happening in your case?
The way this thing works is that in "normal conditions" (no dtc codes) the computer uses the voltage input signal from the "D" circuit (wire labeled "VPA") to control the throttle body.
It uses the voltage input signal from the "E" circuit (wire labeled "VPA2") to verify that the "D" circuit voltage signal is correct in relationship to the accelerator pedal position.
And that's where the computer read your high voltage signal. On its (ECM) voltage signal input labeled VPA2.
If you want to dive into this even further....
Not only does the "failsafe" use 2 separate sensors and circuits, it also uses 2 separate voltage ranges.
Here's how that looks:
That VPA2 voltage signal to the computer should be 4.55 volts when the accelerator pedal is fully depressed.
The "E" circuit high voltage code was thrown because that voltage (on VPA2) exceeded 4.8 volts for 1/2 a second.
So what could cause that? An open or short to power in one of the 3 wires or at the connector (corrosion/heat damage) going to the APP sensor assembly or computer.
Or the APP sensor is faulty. (internal short or open).
So you could check that the 5 volt reference isn't shorting 5 volts to the VPA2 wire/connector pin.
You could check for an open on the Ground wire.
But the likely cause for that code was addressed in my short answer
while running a live data read , “acceleration pedal E “ is too high..
was there a trouble code associated with that?
I notice my rpm drops really fast while on the freeway
what do you mean? RPM is supposed to drop when you lift your foot off the accelerator.