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

Flow of Diagnosis

Flow Of Diagnosis:





FLOW OF DIAGNOSIS

Driveability Worksheet (Part 1 Of 2):




Driveability Worksheet (Part 2 Of 2):





DRIVEABILITY WORKSHEET

Repair History (Part 1 Of 2):




Repair History (Part 2 Of 2):





VEHICLE REPAIR HISTORY WORKSHEETS

1. Utilize the REPAIR HISTORY and DRIVEABILITY WORKSHEETS in this section to provide better communication between the customer and the mechanic. This provides for more accurate and timely vehicle diagnosis/repair.
2. Check any Technical Service Bulletins that may apply to the vehicle being serviced. These bulletins may contain important information regarding warranty, recalls, revised service procedures, etc.
3. Follow the Flow Of Diagnosis from top to bottom.
4. For testing components see COMPONENT TESTING.
5. If no faults are found in the ignition system, refer to COMPUTERIZED ENGINE CONTROLS.