Pattern 1

WARNING: This page is about a different car, the 2013 Mazda CX-5. However, it is still accessible from the selected car via links, so may be relevant.

Terminal:
- Brake fluid level signal: 2Q (+) <==> ground (-)
- Washer level signal: 2S (+) <==> ground (-)
Oscilloscope setting: 2 V/DIV (Y), 1 ms/DIV (X), DC range

Fig 1: Brake And Washer Fluid Level Signal Voltage Waveform