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

On-Board System Readiness Tests Access Procedure

On-Board System Readiness Tests Access Procedure

1. Perform the necessary vehicle preparation and visual inspection




2. Connect WDS or equivalent to the vehicle DLC-2 16-pin connector located at the left side of the center console
3. Monitor the OBD-II systems operating status by WDS or equivalent