System Description: Notes
WARNING: This page is about a different car, the 2005 Honda Civic, 2004 Honda Civic, 2003 Honda Civic, and 2002 Honda Civic. However, it is still accessible from the selected car via links, so may be relevant.
The Multiplex Control System has four internal functions:
- Multiplexing (send multiple signals over shared wires)
- Wake up/sleep (runs at full power only on demand to reduce battery draw)
- Fail-safe (fixes or ignores faulty signals)
- Self-diagnosis (Mode 1 for the system, Mode 2 for input lines).
The system controls the function of these circuits:
- Entry light control (ignition key light and ceiling light)
- Wiper/washer intermittent wipe and park functions
- Keyless/power door lock
- Meter assembly, temperature gauge, and indicator lights
- HVAC (compressor and fan control)
- Key-in reminder
- Headlight reminder
- Seat belt reminder