Pattern 3

WARNING: This page is about a different car, the 2013 Mazda 3. However, it is still accessible from the selected car via links, so may be relevant.

Fig 1: BCM Pattern 3 (Generated Pulse)

Terminal: 2E (+) ↔ body ground (-)
Oscilloscope setting: 1 V/DIV (Y), 200 μs/DIV (X), DC range