Turn Signals: Description and Operation
CIRCUIT OPERATIONWith the ignition Switch in "RUN," "BULB TEST" or "START," voltage is applied from I/P Fuse #6 and the Electric Turn Signal Flasher to the normally closed pole of the Hazard Switch in the Turn/Hazard Switch Assembly.
With the Turn Switch in the "TURN LEFT" position, voltage is applied from the Turn Switch to CKT 14 at terminal "H" of the Turn/Hazard Switch connector C210 and to CKT 18 at terminal "M" of C210. LH Front Turn, Rear Turn and indicator Lights flash "ON" and "OFF" as current flow heats up the timing element in the Electric Turn Signal Flasher, and it continuously opens and closes the circuit (for RH Turn Lights CKT 15 terminal "J" of C210 and CKT 19 terminal "N" of C21O.
The Electric Turn Signal Flasher will flash four or more turn signal bulbs at the same flash rate. The Electric Turn Signal Flasher will flash at a much faster rate if three or less Turn Signal Bulbs are being flashed (Front Marker Bulb won't affect flash rate if illuminated or not).
With Park Lights "ON" and Turn Lights "ON," voltage is applied to both terminals of the Front Marker Lamp causing it to be "OFF." When the Front Turn Light is "OFF," voltage is applied to only one terminal of the Marker Lamp causing it to flash "ON." They continue to flash "ON" and "OFF" out of sequence until Turn Switch is turned "OFF."