SW1 L4-1.9L SOHC VIN 8 (1996)
Tachometer: Description and Operation
The tachometer receives engine RPM information from the distributorless ignition system (DIS) module. The engine RPM signal is buffered by an RC
filter/limiting diode and sent to the tachometer drive integrated circuit (IC), both located within the instrument cluster. The IC receives a low-to-high
square wave signal, and produces a well defined pulse of current to the moving coil inside the tachometer. The engine completes one revolution for every
two pulses received from the DIS module.
