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 Inputs, Bus



Control Module Inputs, Bus







^ Vehicle speed (km/h, mph) from MIU (540)
^ Identification number from MIU (540)
^ SID buttons (Night Panel) from SID (541)
^ Outdoor temperature (degree C) from SID (541)
^ Ignition +B (on/off) from DICE (628)
^ Ignition +15 (on/off) from DICE (628)
^ Ignition +54 (on/off) from DICE (628)
^ Ignition +50 (on/off) from DICE (628)
^ RL wheel speed from TC/ABS (382)
^ Seat belt, driver (connected/not connected) from SRS (331)
^ Seat belt, passenger (connected/not connected) from SRS (331)
^ Engine has started (on/off) from Trionic 7 (430)
^ Diagnostic communication

For a more detailed description of the control module input information from the bus, see Bus Messages.

For a further description of diagnostics, see Bus and diagnostics communication.