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

Retained Accessory Power (RAP)

The SBM shall provide a Retained Accessory Power (RAP) function. This function (also known as Delayed Accessory Bus) is intended to allow certain vehicle systems (Radio, Windows, etc.) to be operated after the vehicle ignition is switched off.

The RAP function will be disabled if any door is opened or after a period of 10 minutes.