System Description: Notes
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 system DTCs, 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)
- Interlock system
- Power Door Lock
- Gauge control module (temperature gauge and indicators)
- HVAC (Compressor control)
- Key-in reminder
- Lights-on reminder
- Seat belt reminder
- Keyless entry