Ignition System Check: Reference
WARNING: This page is about a different car, the 2006 Suzuki XL-7. However, it is still accessible from the selected car via links, so may be relevant.
Oscilloscope waveforms of CMP sensor REF signal and No.1 ignition trigger signal are as shown in figure when connecting oscilloscope between terminal "C51-1-13" of ECM connector connected to ECM and ground, and between terminal "C51-2-28" and ground.
Oscilloscope waveforms at specified idle speed