Dimmable Backlighting

When the parking lamps are on, the SJB  monitors the input from the instrument panel dimmer switch. The SJB  sends a pulse-width modulated voltage to the dimmable components and switches based on input received from the instrument panel dimmer switch.

The SJB  also sends a message over the network to the Audio Control Module (ACM), the Rear Entertainment Module (RETM), the HVAC module, and the Instrument Cluster (IC) to indicate the backlighting intensity level.