Daytime Running Lamp: Description and Operation

DAYTIME RUNNING LAMPS (DRL)

The daytime running lamps system operates the low-beam headlamps at a reduced intensity. The smart junction box (SJB) supplies pulse width modulated (PWM) voltage, 80% of battery voltage, to the low-beam headlamps when the following conditions are met:
- the headlamp switch is not in the headlamps ON position
- the ignition switch is in the RUN position
- the transmission is not in PARK (automatic transmission only)
- the parking brake control is released (manual transmission only)