Courtesy lights - functional description
- Make
- Alfa Romeo
- Model
- GT Factory Service Manual
- Year
- 2003–2010
- Section
- Interior lighting › Courtesy lights - functional description
COURTESY LIGHTS - FUNCTIONAL DESCRIPTION
Functional description
The Body Computer
M1
receives the ''door open'' input signals at pin 8 (left door) and pin 25 (right door) of connector E.
On the basis of the timing and control logic described previously, the Body Computer M1 supplies the two courtesy lights:
- from pin 23 of connector E it supplies the front courtesy light G10; from pin 21 of the same connector it supplies the earth signal for the timer;
- from pin 33 of connector E it supplies the rear courtesy light G20; from pin 37 of the same connector it supplies the earth signal for the timer;
The Body Computer
M1
is connected, via the CAN 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, always arrives via the CAN
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