Engine Control Module: Testing and Inspection

There is no specific testing procedure for checking the ignition control functions of the ECU. For information on the control unit and its ignition control functions, refer to Computers and Control Systems and review the following topics:

ELECTRONIC CONTROL UNIT
CRANKSHAFT POSITION (REFERENCE) SENSOR
ENGINE SPEED SENSOR
HALL SENSOR
KNOCK SENSOR
IGNITION SIGNAL - POWER OUTPUT STAGE