Courtesy Lamps Manual Operation

The courtesy lamps may be manually turned ON by the I/P dimmer switch. When the dimmer switch is placed in the DOME position, ground is applied through the dimmer switch and the courtesy lamp switch ON signal to the BCM indicating the courtesy lamps ON request. In response to this signal, the BCM then applies battery positive voltage from the CTSY/RF TRN fuse through the courtesy lamp supply voltage circuit illuminating the courtesy lamps listed above. The courtesy lamp ON operation of the dimmer switch will override any BCM operation of the interior lamps already in progress.