Diesel Data: Automotive Repair

Turn Signal Flasher: Description and Operation

FLASHER TIMER




GENERAL DESCRIPTION CONCERNING FLASHER TIMER
The following ECUs affect the functions and control of the flasher timer.

FLASHER TIMER FUNCTION




TURN SIGNAL LIGHT
The turn signal light output (flashing signal) is turned ON when the turn signal light ignition switch is ON and the turn signal light switch is ON (LH or RH). If the front turn signal light or rear turn signal light bulb has burned out, the flashing speed increases to indicate that the bulb has burned out.