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)

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Work Flow

WORK FLOW
A good understanding of the malfunction conditions can make troubleshooting faster and more accurate.

In general, each customer feels differently about a malfunction. It is important to fully understand the symptoms or conditions for a customer's complaint.

Make good use of the two sheets provided, Information From Customer and DIAGNOSTIC WORKSHEET, to perform the best troubleshooting possible.





Work Flow Chart

DIAGNOSTIC WORKSHEET

Information From Customer

KEY POINTS





^ WHAT Vehicle and A/T model
^ WHEN Date, Frequencies
^ WHERE Road conditions
^ HOW Operating conditions, Symptoms











Diagnostic Worksheet Chart