H27 engine
WARNING: This page is about a different car, the 2004 Suzuki XL-7 and 2004 Suzuki Grand Vitara. 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.