Headlamps Operation

Battery voltage is applied through the RH Rear Power Distribution Center MaxiFuse� Block #2 HEADLAMPS Circuit Breaker at all times. The circuit breaker will open if the headlamp circuit draws too much current. When the circuit breaker opens, it interrupts the current flow. With no current flow, the circuit breaker cools and resets automatically. With the headlamp switch in HEAD, voltage is applied from the Lamp Control Module (LCM) to the LH and RH low beam headlamps. High beam operation is enabled by pulling the multi-function lever (turn signal) towards the driver. This signals the LCM to remove voltage from the LH and RH low beam headlamps and supply voltage to the LH and RH high beam headlamps.