Operation CHARM: Car repair manuals for everyone.

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).