DTC = Diagnostic Trouble Code. These are codes that will set to give an indication of what and where the computer detects a problem. However they very seldom actually point to a single component as a failed part.
There are 4 groups of codes that are used in the OBD standards.
U= Communication and integration
Each of those has a multitude of codes in each group along with extras that are manufacturer specific. Some of the codes will turn on the check engine light, others will not.
Wednesday, May 15th, 2019 AT 5:42 PM