Wig Wag Flasher Wiring Diagram - Dual Relay Setup for Alternating Lights

This document is a hand-drawn wiring diagram (computer-drawn schematic) showing how to wire a wig-wag flasher module to two lights using two standard 5-pin automotive relays (terminals 30, 85, 86, 87, and 87a). A fused +12v source passes through an on/off switch and energizes terminal 85 of both relay coils, with terminal 86 of each relay tied to ground. A separate fused +12v supply, described as "heavy enough to run both lights," feeds terminal 87 of the top relay and terminal 87a of the bottom relay. The wig-wag module's Output 1 connects to terminal 87a of the top relay, and Output 2 connects to terminal 87 of the bottom relay. Terminal 30 of each relay feeds one light (light 1 from the top relay, light 2 from the bottom relay), and both lights are grounded. The arrangement lets the switch toggle the lights between normal steady operation (fed by the heavy +12v supply) and alternating wig-wag flashing (fed by the wig-wag module outputs). No vehicle year, make, model, part numbers, wire gauges, or fuse amperages are stated in the diagram itself.