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3.2.2 Accelerator pedal
The accelerator pedal is the signal of the automobile accelerator. There are generally 2 groups, each pair of 3 wires,
power, signal, and ground. Divided into analog/analog and analog/digital. Analog/analog signal is two analog
signals, usually there are two ways, one is deviation signal: one signal is from 0.3V→4.8V, which rises as the
accelerator pedal is depressed, and the other is 4.8V→0.3V, with Depress the accelerator pedal and descend. The
other is the same direction signal, but the voltage is different, one is 0.5V→2.5V, the other is 1V→4.5V; (the
voltage range is for reference only, the voltage range may be slightly different for different models, but the trend is
the same).
Use SATO oscilloscope to test the accelerator pedal sensor, the specific operation is shown in Figure 3-11:
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