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

Information Bus: Description and Operation

SYSTEM OUTLINE

This is a multiplex system comprised of the body ECU, driver door ECU, front passenger door ECU, theft deterrent ECU and power seat ECU.

THE MULTIPLEX COMMUNICATION SYSTEM INCLUDES THE FOLLOWING SYSTEMS
- AUTOMATIC LIGHT CONTROL
- DOOR LOCK CONTROL
- HEADLIGHT
- INTERIOR LIGHT
- KEY REMINDER AND SEAT BELT WARNING
- LIGHT AUTO TURN OFF
- POWER SEAT (w/ DRIVING POSITION MEMORY)
- POWER WINDOW
- REMOTE CONTROL MIRROR (w/ DRIVING POSITION MEMORY)
- THEFT DETERRENT
- WIRELESS DOOR LOCK CONTROL