USA

Low Beams
The headlight relay receives battery voltage at all times. When you turn the headlight switch to the HEAD position with the dimmer switch in LO, the coil in the headlight relay is grounded through the BLU/RED wire. This energizes the relay, applying battery voltage to the left and right high and low beam headlights through fuses 52 and 49. The low beam bulbs come ON because their opposite terminals are tied grounded. The high beam bulbs and indicator remain OFF because the ground path to them is interrupted by the deactivated dimmer relay.

High Beam
Pulling the dimmer switch to HI, with the low beams already ON, grounds the coil in the dimmer relay. This energizes the dimmer relay, applying ground to the high beam bulbs and high beam indicator, which turns ON the high beams and indicator light. The low beam headlights stay ON (see low beams).

Flash-to-Pass
Holding the flash-to-pass switch in the ON position, grounds the coil in the headlight relay through the BLU/RED wire, and grounds the dimmer relay coil through the RED/BLU wire. This energizes the headlight relay, applying battery voltage to the low and high beam bulbs and to the dimmer relay. As the low beam bulbs receive battery voltage, the dimmer relay is energized, grounding the high beam bulbs and high beam indicator through the RED/BLU wire which turns ON the high beams and indicator light.