Part | Description
BCM |

- Detects each switch condition by the combination switch reading function.
- Judges the ON/OFF status of the clearance, license plate, side marker and tail lamps according to the vehicle condition.

- Requests the tail lamp relay ON to IPDM E/R (with CAN communication).

IPDM E/R | Controls the integrated relay and supplies voltage to the load according to the request from BCM (with CAN communication).
Combination switch (Lighting & turn signal switch) | Refer to System Diagram.
Combination meter (Tail lamp indicator lamp) | Turns the tail lamp indicator lamp ON according to the request from BCM (with CAN communication).