DTC cadillac U0121 Short Explanation

The video focuses on the basic Cadillac specific diagnostic error code. Contents: 0:21 Basic DTC analysis according to OBD2 protocol standard. 1:48 Insight into programming - an explanation of what a bit is and how a byte is formed - decoding the Error Code to the base programming 2:58 A diagnostically understandable description of the Diagnostic Trouble Code 3:05 Basic error definition - Possible causes or errors of the car and its parts describing the mentioned error We will continue to work on improving the content. Our efforts at Maxidot s.r.o.the video content gets better. #cadillac Make: Cadillac Code: U0121 Definition: Engine or Climate Control Electric Cooling Fan Malfunction Cause: Wiring or connectors