Daytime Running Lamp: Description and Operation
HEADLIGHT AND TAILLIGHTGENERAL DESCRIPTION CONCERNING THE HEADLIGHT AND TAILLIGHT
The above ECU related to the headlight and taillight types and various control functions.
Daytime running light function
The daytime running light-ECU constantly lights up the high beam in a reduced beam state if the ignition switch is in the ON position when the headlight switch is in the "OFF" or "TAIL" position. If the headlights illuminate while the daytime running light function operates, the daytime running light-ECU shut the high-beam down.