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 spiritual successor to CHARM, I recommend you try it!
Link:
lemon-manuals.la or
lemon-manuals.org.ua
(Some people have issue connecting. LEMON is investigating. For now, use Firefox or change your DNS server)
Or, hide this message:
temporarily or
permanently
Precautions
Due to the electronic system control and low system voltages, certain precautions must be taken to ensure accurate diagnosis and to avoid damage to system. Do not disconnect or connect electrical connectors with
ignition switch in the On position unless specifically instructed. Do not connect test equipment directly to ECM, except where noted. Do not attempt to measure
oxygen sensor output, as sensor will be damaged.