FixVault

Waveform 9

  1. Igniter IGT signal (from ECM to igniter)
  2. Igniter IGF signal (from igniter to ECM)
    Fig 1: Igniter IGT Signal Description Table
    G03057898Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

HINT:

The wavelength becomes shorter as vehicle speed increases.

Fig 2: Igniter IGT Signal - Waveform
G03057899Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002