RAM 3500 HD Truck 2WD L6-6.7L DSL Turbo (2008)
Daytime Running Lamp: Description and Operation
Vehicles manufactured for sale in Canada illuminate the high beam filament of both headlamp bulbs at a reduced intensity when the engine is running,
the parking brakes are released and the exterior lamps are turned off. The TIPM must be programmed with the appropriately for this feature to be
enabled. Once enabled, anytime the TIPM receives electronic messages over the CAN data bus from the PCM indicating the engine is running and from
the EMIC indicating the status of the headlamp switch exterior lighting input is Off, the TIPM See: Maintenance/Fuses and Circuit
Breakers/Fuse/Locationsprovides a pulse width modulated voltage output to the proper headlamp bulb filaments through the right and left high beam
feed circuits to produce illumination at a reduced intensity.