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

General Information

The serial data line is the means by which the microprocessor controlled modules in the vehicle communicate with each other. There are two different serial data lines on this vehicle, UART (Universal Asynchronous Receiver/Transmitter) and Class 2.