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

Diagnostic Tables

Diagnostic Tables provide a procedure to follow that will locate the condition in a circuit causing a malfunction. If your own knowledge of the system has not produced a quick fix, follow the Diagnostic Table.

All procedures are based on symptoms to assist in locating the condition as fast as possible. Diagnostic Tables should exist for all possible (realistic) symptoms and Diagnostic Trouble Codes (DTCs).