Manuals through 2025 now available!

Our trusted friends have launched a new website named LEMON, which has newer manuals. It also contains all the CHARM manuals.

LEMON is the logical successor to CHARM, I recommend you try it!

Link: lemon-manuals.la

System Diagnosis

Reference

Oscilloscope wave forms of CMP sensor and No.1 ignition trigger signal are as shown in figure when connecting oscilloscope between terminals C20-10 of ECM (PCM) connectors connected to ECM (PCM) and ground, and between terminal E92-34 and ground.