Voltage is available to the headlamp and panel dimmer switch at all times. The headlamp and panel dimmer switch includes a self-resetting circuit breaker. The circuit breaker opens when the headlamp and panel dimmer switch draws too much current. When the circuit breaker opens, the current flow stops. The circuit breaker cools off and resets automatically with no current flow.

The headlamp dimmer switch directs the voltage to either the low beam headlamps or the high beam headlamps, depending on the headlamp dimmer switch position, when the headlamp and panel dimmer switch is in the HEAD position. When the headlamp and panel dimmer switch is in the HEAD position the daytime running lamps (DRL) module receives a headlamps ON signal. The DRL operation disables when the DRL module receives the signal when the ignition is in the following positions:

Voltage applies through the closed contacts of the headlamp and panel dimmer switch and the headlamp dimmer switch to the left side and the right side low beam headlamps when the following conditions exist:

The G100 supplies the ground to the right side low beam headlamp and G101 for the left side low beam headlamp.

Voltage applies to the following components when the headlamp dimmer switch moves to the HI position with the headlamp and panel dimmer switch in the HEAD position:

The voltage applies to the high beam indicator and grounds through G110 when the headlamp dimmer switch is in the HI position. G100 supplies the ground for the right side headlamps. G101 supplies the ground to the left side headlamps.