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Inspection Using an Oscilloscope (Reference)
WARNING: This page is about a different car, the 2010 Mazda 3. However, it is still accessible from the selected car via links, so may be relevant.
Intruder sensor signal
- Terminal connected: 5N (+)-Body ground (-)
- Oscilloscope setting: 5 V/DIV (Y): 5 s/DIV (X), DC range
Courtesy of MAZDA MOTORS CORP.