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

7. Plotting Snapshot Graph

7. Plotting Snapshot Graph

Plotting Graph Flow Chart (Plotting graph after obtaining vehicle information):





This test selects several necessary items from the data list to plot graphs and makes data comparison on a long term basis. It is an effective test particularly in emission related evaluations.

Flow Chart for Snapshot Relay (Plotting Graph):





For trouble diagnosis, you can collect graphic data (snap shot) directly from the vehicle.





You can replay the snapshot data as needed. Therefore, accurate diagnosis is possible, even though the vehicle is not available.