With Fog Lamps
CIRCUIT OPERATIONThe Fog Lights are controlled by the Light Switch. They can be turned on with the Park or Headlights on. With the HI Beams on, the Fog Lights go out.
The Fog Light Relay controls battery voltage to the Fog Lights. The Fog Light Switch applies voltage to the relay coil. The relay coil is grounded through the HI Beam filaments. When the HI Beams come on, battery voltage is at both sides of the relay coil. The relay and the Fog Lights turn off.