What causes the voltage difference between throttle pedal signal 1 and 2?

[LePeyton]

Throttle pedal signal 1 and 2 voltage inconsistency may be caused by electronic throttle sensor failure. The electronic throttle pedal contains two ICs, serving as primary/secondary pedal sensors. The factory-provided reference voltage values can be used as benchmarks - the primary IC should measure approximately 800mV when idle and around 4900mV at full depression. Significant deviation from these reference values (either too high or too low) indicates potential electronic throttle pedal malfunction. Electronic throttle working principle: The electronic throttle transmits pedal position and movement signals through position sensors. These signals are received and interpreted by the ECU, which then issues control commands to adjust the throttle valve opening angle accordingly. Symptoms of electronic throttle pedal failure: Damaged electronic throttle pedals will trigger warning lights on the dashboard, cause pedal stiffness and abnormal noises during operation, and may fail to return to position after depression. Additionally, faulty throttle pedal sensors prevent the ECU from detecting pedal input, leading to unstable idling, throttle sticking, unresponsive acceleration, and ultimately rendering the vehicle inoperable.