Interior Lighting

Following are descriptions of the how the left multi-function switch is operated to control the many interior lighting functions and features it provides:

• Interior Lamps Defeat  - The interior lamps defeat feature is requested when the left multi-function switch control sleeve is rotated to the interior lamps DEFEAT detent position. The SCM reads the resistor multiplexed input from the left multi-function switch and sends an electronic interior lighting switch status  message over the LIN data bus to the EMIC, which relays an electronic interior lighting switch request  message over the CAN data bus to other electronic modules in the vehicle.
• Interior Lamps On  - The interior lamps ON feature is requested when the left multi-function switch control sleeve is rotated to the interior lamps ON detent position. The SCM reads the resistor multiplexed input from the left multi-function switch and sends an electronic interior lighting switch status  message over the LIN data bus to the EMIC, which relays an electronic interior lighting switch request  message over the CAN data bus to other electronic modules in the vehicle.
• Panel Lamps Dimming  - The panel lamps dimming function is active only when the left multi-function switch control knob is in any exterior lighting ON position. With the exterior lighting ON, the panel lamps dimming level is requested when the left multi-function switch control sleeve is rotated to any one of five minor detent positions. The SCM reads the resistor multiplexed input from the left multi-function switch and sends an electronic interior lighting switch status  message over the LIN data bus to the EMIC, which relays an electronic interior lighting switch request  message over the CAN data bus to other electronic modules in the vehicle.
• Parade Mode  - The PARADE (or funeral) mode is active only when the left multi-function switch control knob is in any exterior lighting ON position. With the exterior lighting ON, the PARADE mode is requested when the left multi-function switch control sleeve is rotated to the PARADE mode detent position. The SCM reads the resistor multiplexed input from the left multi-function switch and sends an electronic interior lighting switch status  message over the LIN data bus to the EMIC, which relays an electronic interior lighting switch request  message over the CAN data bus to other electronic modules in the vehicle.