The APP sensor is listed to be under the battery on the aftermarket wiring diagram, which is not correct. It is on the pedal, But with the Key On, engine off, there should be two wires with 5volts on them, two wires which are Grounds for the sensor, and if you back probe the signal wires while the connector is still plugged in, checking one signal at a time, you should see the voltage fluctuate from 0volts to roughly 5volts when you press the gas pedal down, usually it's not all the way to 5volts, some only go to 3volts, some 4.5volts, etc, but it should change with pedal movement, You can use the sensors Grounds (APPS RETURN) or Battery Negative when testing with a multimeter, I would check using both ground locations to see if that's possibly the issue.
With no codes, there is definitely some other problem going on, so when you get to testing, let us know, I'll keep an eye out for your posts, this might be a failed PCM, or vehicle networking issue.
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Tuesday, October 29th, 2024 AT 3:28 PM