Turn Lamps

With the Ignition Switch in the RUN, BULB TEST or START positions, voltage is applied through the TURN Fuse and the Turn/Hazard Flasher to the normally closed contact of the Hazard Switch in the Turn/Hazard-Headlamp Switch Assembly.

When the left turn signal is turned on, voltage is applied to both the LH Turn Indicator and the LF Park/Turn Lamp circuit 14. Voltage is also applied to the LR Turn Lamp circuit 18. The lamps go on immediately. They begin to flash when the current flow heats up the timing element in the Turn/Hazard Flasher and it repeatedly opens and closes the circuit.

The voltage applied to the LF Park/Turn Lamp will also be applied to the LF Marker Lamp. If the Headlamp Switch is in the OFF position, the LF Marker Lamp will find a path to ground through the RF Marker Lamp, RH Turn Indicator and RF and LF Park/Turn Lamps. These lamps provide low resistance paths to ground. The LF Marker Lamp will flash with the Turn Lamps. The lamps used for the ground path will not flash, because the voltage drop across the Marker Lamp is much higher than that across the other lamps.

When the Headlamp Switch is in either the PARK or HEAD positions, voltage is applied through the EXT LP Fuse, and the Marker and Park Lamps. When the left turn signal is turned on, the LH Marker Lamp will have voltage at both connections and will not light. When the Turn/Hazard Flasher stops voltage to the Turn lamp, the Marker Lamp will be grounded through the Turn Lamp and will go on. In this way, the LF Marker Lamp will flash on when the turn filament of the LF Park/Turn Lamp goes off, and off when the turn filament of this lamp goes on.

When the right turn signal is turned on, voltage is applied to the RH lamps in a similar way.