Daytime Running Lamps - Description

DESCRIPTION

Vehicles built for use in Canada, and also available as an option on vehicles for sale in the U.S., are equipped with a Daytime Running Lamp (DRL) system. All the exterior lighting messages come from Steering Control Module (SCM) or left multi-function switch on Local Interconnect Network (LIN) data bus and goes to the Cab Compartment Node (CCN), then the CCN sends out a Controller Area Network (CAN) data bus message to the Totally Integrated Power Module (TIPM) for each lighting function according to the request from left multi-function switch. Then the TIPM will turn ON/OFF the requested output. The DRL function is controlled by TIPM. Daytime running lamps are High beam lamps at lower intensity.