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

MOST System Analysis



MOST System Analysis

- Step 1: Print out the results of the MOST bus system analysis.
- Step 2: Use the programming system to read out the vehicle data, find the action plan and work through the individual steps.
- Step 3: All suspicious control units must be reprogrammed.
- Case 1: All suspicious control units are programmed as part of the action plan. Continue with step 4.
- Case 2: One of the two suspicious control units was not programmed when the action plan was executed. Reprogram this control unit in the control unit selection with "Update software".
- Case 3: No suspicious control units has been programmed within the framework of the CIP measures plan. Reprogram the suspicious control unit in the control unit selection with "Update software".
- Step 4: Enter the vehicle programming code in the comment box of the warranty claim submission form.