FixVault

IGT1, IGT2, IGT3, IGT4 Control

WARNING: This page is about a different car, the 2018 Mazda CX-9. However, it is still accessible from the selected car via links, so may be relevant.
Fig 1: IGT1, IGT2, IGT3 And IGT4 Control Output Voltage Signal Graph
G11436142Courtesy of MAZDA MOTORS CORP.

PCM terminals