Generator field coil signal

WARNING: This page is about a different car, the 2004 Mazda MPV. However, it is still accessible from the selected car via links, so may be relevant.

Fig 1: Generator Field Coil Signal Inspection By Using Oscilloscope (Reference)

Courtesy of MAZDA MOTORS CORP.

PCM terminal: 53(+)-103(-)
Oscilloscope setting: 0.5V/DIV (Y), 1ms/DIV (X), DC range
Vehicle condition: idle after warm up