Generator field coil signal

Fig 1: Generator Field Coil Signal - Oscilloscope Graph

Courtesy of MAZDA MOTORS CORP.

• PCM terminal: 3M(+) <--> 4A(-)
• Oscilloscope setting: 0.5 V/DIV (Y), 2.5 ms/DIV (X), DC range
• Vehicle condition: Idling after warm-up (no electrical load)