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Inspection Using An Oscilloscope (Reference): CMP
WARNING: This page is about a different car, the 2005 Mazda MPV. However, it is still accessible from the selected car via links, so may be relevant.
- PCM terminal: 28 (+)-2 (-)
- Oscilloscope setting: 0.5V/DIV(Y),10ms/DIV(X), AC range
- Vehicle condition: idle after warm up
Courtesy of MAZDA MOTORS CORP.