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Serial communication line of BCM (1)

WARNING: This page is about a different car, the 2011 Suzuki SX4. However, it is still accessible from the selected car via links, so may be relevant.
WAVEFORM NO. 2 REFERENCE CHART

Measurement terminal CH1: "G20-13" to "G20-23"
Oscilloscope setting CH1: 5 V/DIV
TIME: 20 ms/DIV
Measurement condition Ignition switch is at ON position
Fig 1: Waveform Graph - Serial Communication Line Of BCM
G06868770Courtesy of SUZUKI OF AMERICA CORP.