IGT1, IGT2, IGT3, IGT4 Control

Fig 1: IGT1, IGT2, IGT3 And IGT4 Control Output Voltage Signal Graph

Courtesy of MAZDA MOTORS CORP.

PCM terminals 

• IGT1 (ignition coil No. 1) : 1AG(+)-body ground(-)
• IGT2 (ignition coil No. 2) : 1AE(+)-body ground(-)
• IGT3 (ignition coil No. 3) : 1AF(+)-body ground(-)
• IGT4 (ignition coil No. 4) : 1AD(+)-body ground(-)

  Oscilloscope setting 

• 2 V/DIV (Y), 200 ms/DIV (X), DC range

  Vehicle condition 

• Idle after warm up