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DTC GMC C056171 Short Explanation
>> YOUR LINK HERE: ___ http://youtube.com/watch?v=uCsi1tBOnN4
The video focuses on the basic GMC 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. • • • • • Make • GMC • Code • C0242 71 • Definition • Class 2 Communication Malfunction • Description • Modules connected to the Class 2 circuit monitor for serial data communications during normal vehicle operation Operating information and commands are exchanged among the modules When a module receives a message for a critical operating parameter, the module records the identification number of the module that sent the message These Node Alive messages are used for State of Health monitoring A critical operating parameter is one which, when not received, requires that the module use a default value for that parameter When a module does not associate an identification number with at least one critical parameter within 5 seconds of starting data communication, DTC U1000 or U1255 is set When more than one critical parameter does not have an identification number associated with it, the code will only set once • Cause • Class 2 circuit is open, shorted to ground or shorted to power ECM ignition power circuits has a high resistance condition ECM main ground circuits has a high resistance condition SDM module could be shorted pulling the voltage low • Failure Type • Actuator Stuck • This sub type is used for failures where the control module does not detect any motion in response to energizing a motor, solenoid, relay, etc
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