Dimming Control
WARNING: This page is about a different car, the 2003 Pontiac Montana, 2003 Oldsmobile Silhouette, and 2003 Chevrolet Venture. However, it is still accessible from the selected car via links, so may be relevant.
Display dimming for the DIC follows the radio dimming characteristics. Upon activation of the parklamps, the display steps from maximum brightness to dim. While in the dim mode, further dimming is controlled by the PWM Dimming Signal of the IP dimming control. The display goes blank upon lowest dimming request of the dimming control.