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Generator Field Coil Control Signal

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: Generator Field Coil Control Output Voltage Signal Graph

Courtesy of MAZDA MOTORS CORP.

PCM terminals

1AO(+)-body ground(-)
Oscilloscope setting
2 V/DIV (Y), 2 ms/DIV (X), DC range
Vehicle condition
Idle after warm up