Daytime Running Lamp: Description and Operation

DAYTIME RUNNING LAMPS (DRL)

NOTE: The smart junction box (SJB) must be reconfigured before installing a new module.

The SJB controls the front and rear portion of the vehicle. This system relies on the controller area network (CAN) in order to transmit and receive signals. It is very important to understand:
- where the input (command) originates from.
- all information (messages) necessary in order for a feature to operate.
- which module(s) receive(s) the input or command message.
- if the module that receives the input (message) controls the output of the feature, or if it outputs a message over the CAN communication network to another module.
- which module controls the output of the feature.