Lighting For Buttons And Controls
WARNING: This page is about a different car, the 2001 Saab 9-3. However, it is still accessible from the selected car via links, so may be relevant.
The light intensity is controlled by DICE. The intensity can be adjusted manually by a rheostat control (potentiometer). Information from the rheostat (0-100%) is sent via the bus. DICE measures the lamp voltage and uses pulse width modulation (PWM) to control the light intensity.
IMPORTANT:
All lamp outlets are protected from short circuiting.
Do not change to bulbs with a higher output as the outlets will not withstand overloading.
If the output is too high, the short circuiting protection is broken immediately.
Do not change to bulbs with a higher output as the outlets will not withstand overloading.
If the output is too high, the short circuiting protection is broken immediately.