Park, Sidemarker, Tail and License Lamps

Voltage is applied at all times to the PARK Fuse to the Headlamp and instrument panel lamp dimmer switch through circuit 1340. With the Headlamp and instrument panel lamp dimmer switch in PARK or HEAD, voltage is applied to circuit 9. Then to all park, side marker, tail and license lamps turning them on. The only lamps that receive a current from circuit 9 and do not turn on are the turn filaments in the park/turn lamps. They do not turn on because the voltage drop across the front side marker lamps is much higher than that across the turn lamp filaments.