NT200 OBDII/EOBD Code Reader User’s Guide_English Version_V1.10
Diagnostic Trouble Codes (DTCs)
Diagnostic Trouble Codes (DTCs) are faults stored by vehicle
computers when problems that affect engine performance and
emissions are detected. DTCs are used to help identify the
cause of a trouble or troubles with a vehicle, and determine the
fault location(s).
DTCs consist of a five-digit alphanumeric code. Please see
below for the DTCs format and code types.
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