Daytime Running Light Relay Circuit: Description

This function is designed to automatically illuminate the headlights (HI-beams), during the daytime to make the car more visible to other vehicles. The main body ECU and power distributor control this function. The main body ECU transmits a turn ON signal to the power distributor and the power distributor illuminates the HI-beams using duty control. The daytime running lights come on when the conditions below are met:

• The ignition switch is ON.
• The READY condition signal is input.
• The parking brake switch is OFF.
• The light control switch is not in DRL OFF.*1
• The light control switch is in the OFF*2, TAIL or AUTO position and the headlights are not turned on via the automatic light control.

• *1: w/ DRL OFF Switch
• *2: for Canada