P2116 means the powertrain control module (PCM) has detected that the rest, or minimum stop, signal from throttle/pedal position sensor E is outside its expected range or does not match the learned closed-position value. This sensor is one of the redundant position sensors used to monitor accelerator pedal or throttle blade position. A flagged minimum-stop problem can make the PCM distrust the throttle control signal and force reduced-power or limp mode.
The internal sensor E track can wear, drift, or fail so its minimum output voltage sits outside the calibrated window, causing the PCM to set the code.
Open, shorted, corroded, or poorly fitted pins and harness damage can alter the sensor signal at rest, producing the same out-of-range minimum-stop reading as a failed sensor.
If sensor E reads throttle blade angle, carbon deposits, mechanical binding, or a weak return spring can prevent the plate from reaching its true minimum stop position.
After throttle body or pedal service, an incomplete relearn or improper mounting can leave the rest signal outside the expected range until the system is recalibrated.
A PCM fault is possible but uncommon; it should be considered only after the sensor, wiring, and mechanical causes have been ruled out and a relearn has failed.
You can usually drive to a repair facility, but expect possible reduced power or limp mode. Throttle behavior may become unpredictable, so it should be diagnosed promptly.
Not necessarily. Many cases are caused by a wiring fault, carbon buildup, or an unlearned minimum stop. Replacement is only appropriate if the internal sensor E is confirmed failed.
No. PCM failure is a rare cause of P2116. Replacing the PCM first is a common misdiagnosis; the problem is almost always the sensor, its wiring, or a mechanical throttle stop issue.
Yes. Carbon or a binding throttle plate can prevent the blade from reaching the minimum stop, causing sensor E to report a rest value that does not match what the PCM expects.