Diesel Data: Automotive Repair

Cranking Signal: Description and Operation


Ignition Start And Inhibitor Switch Circuit:




AUTOMATIC TRANSMISSION


Ignition Switch Start Signal Circuit:




MANUAL TRANSMISSION


The ignition switch supplies "On" and "Start" information to the ECU to position the idle speed control components. The ignition switch "ON" signal is provided to the ECU through the control relay. Refer to the images for the "START" signal.