Circuit Description

With the ignition switch in the RUN position or the START position, voltage is available through the TURN-B/U fuse and through the turn/hazard flasher to the normally-closed contact of the hazard flasher switch in the turn/hazard switch.

With the turn signal switch in the left turn position, voltage is available to both the left turn indicator and to CKT 14 (LT BLU) of the left park/turn lamp. Voltage is available to CKT 18 (YEL) of the left rear turn lamp.

The lamps illuminate immediately. The lamps begin flashing when the current flow heats the timing element in the flasher. The timing element repeatedly opens and closes the circuit.

The voltage to the left front park/turn lamp is also available to the left front marker lamp. If the headlamp and panel dimmer switch is in the OFF position, the left front marker lamp finds a path to ground through splice S122 and through the many lamps connected in parallel to ground. These lamps provide low resistance paths to ground. The marker lamp flashes with the turn lamps. The lamps used for the ground path do not flash, however, because the voltage drop across the marker lamp is much higher than across the other lamps.

When the headlamp and panel dimmer switch is in either PARK or HEAD, voltage is available through the PARK LP fuse, the headlamp and panel dimmer switch, and splice S122 to the marker lamps and the park lamps. If the turn/hazard switch is in the TURN LEFT position, the left front marker lamp has voltage at both connections and the lamp extinguishes. When the flasher removes voltage to the turn, the marker lamp grounds through the turn and the marker lamp illuminates. In this manner, the left front marker lamp flashes when the left front park/turn lamp extinguishes.

With the turn/hazard switch in the TURN RIGHT position, voltage is available to the right lamps in the same manner.