Operation CHARM: Car repair manuals for everyone.
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

Using the M-MDS

PCM INSPECTION[AJ]




1. Connect the M-MDS to the DLC-2.
2. Turn the ignition switch to ON position.
3. Measure the PID value.
- If PID value is not within the specification, follow the instructions in Action column.