How to Measure the Voltage of BMW n46 Valve Lift Motor

1. Check whether the throttle position and the voltage display value of the accelerator pedal position sensor of BMW 320i meet the specified values. The engine control unit converts the voltage value of the angle sensor into a percentage (based on 5V) and displays the percentage value (5V is equivalent to 100%).

2. Turn on the ignition switch of BMW 320i, and use multimeter to measure the voltage between terminal 1 and ground, terminal 1 and 5, terminal 2 and ground, and terminal 2 and 3 of the accelerator pedal position sensor as 5V.