Purpose of the System
The interior lighting is automatically activated from the door contacts, tailgate switch, remote key and the crash inertia switch, and can be controlled manually from the switch on the interior light unit.
The BC1 is encoded to operate the interior lights in either Soft On/Soft Off or Instant On/Instant Off. In Soft On/Soft Off the interior lights are switched on and off gradually, giving a soft effect. In Instant On/Instant Off the lights are switch on and off instantly.
When the soft on/off feature of the interior lights is active, the BC1 controls the interior light output and map light outputs using pulse width modulation to alter the intensity of the light output, this applies to all operating modes except manual control via the interior light switch.
Three different modes of operation are possible:
- Automatic Control Mode
- ON/OFF Mode
- Permanent OFF Mode