Inspection Using an Oscilloscope

WARNING: This page is about a different car, the 2017 Mazda 3. However, it is still accessible from the selected car via links, so may be relevant.

Fig 1: Oscilloscope Signal Waveform - Power Window Main Switch

Courtesy of MAZDA MOTORS CORP.

Power window main switch: 2D, 2F (+) ↔ ground (-)
Power window motor: B, C (+) ↔ ground (-)
Oscilloscope setting: 2 V/DIV (Y), 1 ms/DIV (X), DC range