Precis L4-1468cc 1.5L SOHC (1993)
Ignition Control Module: Description and Operation
Power Transistor
Power Transistor Location
PURPOSE
The power transistor controls ignition discharge by interrupting the ignition coil primary current ground. The power transistor is a solid state
component.
LOCATION
The power transistor is located on the intake manifold.
Power Transistor
OPERATION
The power transistor is a switching device used to interrupt the ignition coil ground connection and induce high voltage from the coil secondary
windings. A signal from the ECU controls igniter switching, enabling the ECU to regulate ignition timing based engine operating condition
information received from various sensors.
