Engine Control Module (ECU) Ground Circuit

Engine Control Module (ECU) Ground Circuit
(CC. Original Closed Caption Available)

Amazon Printed-Books & Kindle:
http://www.amazon.com/s/ref=nb_sb_noss_1?url=search-alias%3Dstripbooks&field-keywords=mandy+concepcion

Google Play Android APPs:
https://play.google.com/store/search?q=mandy+concepcion&c=apps

Amazon Video DVDs:
http://www.amazon.com/s/ref=nb_sb_noss_1?url=search-alias%3Dmovies-tv&field-keywords=mandy+concepcion

Barnes & Noble Nook:
http://www.barnesandnoble.com/s/mandy-concepcion?keyword=mandy+concepcion&store=allproducts

Apple iTunes iPad:
http://itunes.apple.com/us/artist/mandy-concepcion/id449573393?mt=11

NOTE: This special Video-Course Sub-Series is designed to gain knowledge of the effects a circuit has on the rest of the ECU and how it reacts to such INPUT-Values.

The Engine Control Module (ECU) Ground Input, as simple as they may sound, are 90% of the times overlooked by technicians. The ECU grounds are, in the majority of the times, independently connected to the ECU.

Here in this diagram, we take the example of the O2 sensor. As you can see, the O2 sensor is connected to the E C M microprocessor inputs on one side, and to the ground on the other. However, it is connected to only one ground. It is often the case, where the O2 sensor generates a fault, it is replaced and to no avail. The D T C or faulty code keeps