COURTESY LIGHTS - Functional description

Functional description

The Body Computer M1 receives door open input signals at pin 8 of connector D (driver's door) and pin 25 of connector E (passenger door).

The front courtesy light G10 is supplied by the direct line protected by fuse F39 of the junction unit under the dashboard B2.

The front courtesy light G10 is controlled by the Body Computer M1 with a timer: pin 28 of connector E of M1 receives an analogue control signal from the three buttons on the actual courtesy light: as a result the Body Computer M1 supplies the courtesy lights G10, according to the battery voltage control logic ('SBMT) described previously, providing a timed earth signal from pins 21, 30 and 37, connector E for the three map reading lights separately.

The Body Computer M1 is connected, via the CAN See E1050 CAN CONNECTION LINES line, to the instrument panel E50, from which it receives the 'inertia switch operated' signal which lights up the courtesy lights and sends a signal which, if necessary, can light up the 'doors open' warning light.

The 'low battery voltage' signal which switches off the courtesy lights if they are on, reaches the Body Computer M1 via the CAN line.