XL-7 4WD V6-2.7L (2003)
Camshaft Position Sensor: Testing and Inspection
Reference
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 (PCM) connector connected to ECM (PCM) and ground, and between terminal "C51-2-28" and ground.