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

Control Module In the Control Area Network (CAN)



Control Modules In The Control Area Network (CAN)







The number of control modules in the CAN network varies depending on the car model, equipment level and structure week, The structure week and construction week are not necessarily the same week. The construction week is the week in which the vehicle is built in the factory. The content of the vehicle is steered towards structure week. A structure week may extend over a number of construction weeks. Structure weeks are specified in the format YYYYWW.
For example, the structure week 199815 indicates that the structure week of the vehicle is week 15 1998.