This code indicates that the Engine Control Module (ECM) has detected an intermittent loss of signal from the 'E' channel of the accelerator pedal position sensor. Because modern vehicles use electronic throttle control (drive-by-wire), the ECM relies on multiple pedal sensors for redundancy, and an erratic signal from this specific circuit triggers a fail-safe mode to prevent unintended acceleration.
Loose, corroded, or chafed wiring and connectors in the pedal position sensor circuit are the most common cause, leading to an intermittent connection.
The sensor itself can develop internal electrical failures or dead spots on the resistor track, causing the signal to drop out intermittently.
Physical binding or sticking in the pedal pivot or return springs can cause the sensor signals to behave erratically and fall out of their expected correlation.
Aftermarket electrical components or poorly routed secondary ignition wires can induce electrical noise into the low-voltage sensor signal circuit.
An internal failure within the ECM is a rare cause, where the module cannot properly process or maintain the reference voltage for the sensor circuit.
It is generally not recommended. The vehicle will likely be in limp mode, severely restricting speed and acceleration, which is a safety hazard in traffic. Additionally, the pedal could become completely unresponsive.
No, this code specifically points to the accelerator pedal position sensor circuit (the input side), not the throttle body (the output side). Replacing the throttle body will not fix this code.
Rarely. Many people are mistakenly told to replace the engine computer for this code, but the actual cause is almost always a wiring issue, poor connection, or a faulty pedal sensor itself. The PCM should be the absolute last component considered.
Modern drive-by-wire systems use multiple sensors inside the pedal assembly (often labeled D, E, F, etc.) for redundancy. If the ECM detects that even one of these signals is intermittent or drops out, it restricts engine power to prevent the vehicle from accelerating unexpectedly.