When the park lights are activated, battery positive voltage (B+) is supplied to the foglamp switch through CKT 9 (BRN). Battery positive voltage (B+) is supplied at all times to the switch side of the fog lamps relay position A in the RH IP fuse block through the IP fuse block FOG LPS fuse and CKT 1440 (ORN). With the foglamp switch in the ON position, battery positive voltage (B+) is supplied to the coil of the fog lamps relay position A through CKT 317 (YEL). The coil receives ground from the lamp control module (LCM). With the fog lamps relay position A coil energized, the coil contacts close, supplying battery positive voltage (B+) to the fog lamps. Turning on the high beam headlights produces the following effects: