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Waveform 3

Fig 1: Throttle Actuator Waveform Representation Table 3
G01447324Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  1. Camshaft position (CMP) sensor
  2. Crankshaft position (CKP) sensor
    Fig 2: Throttle Actuator Waveform Representation (3 Of 13)
    G01447325Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

HINT:

The wavelength becomes shorter as engine rpm increases.