DTC GMC C056D-39 Short Explanation

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. #gmc Make: Code: C056D 39 Definition: Fuel Rail Pressure (FRP) Sensor Circuit Voltage Below Threshold Description: The ignition is ON or the engine is running.The DTCs run continuously once the above condition is met. Cause: P0190 03, P0190 07, P0191The ECM detects that the fuel pressure sensor voltage is less than 0.46 volts,or greater than 0.72 volts for 2 seconds. Failure Type: Signal Has Too Few Pulses This sub type is used for failures where the control module measures too few pulses (e.g., position is calibrated in counts from one extreme to the other).