User guide

AutoEnginuity ScanTool User Guide 17
Both the Stored and Pending DTC lists can be interpreted the
same way. The left-most column, Module, identifies the system(s)
that the vehicle’s computer has determined to have a problem. The
Module will help you quickly narrow down what system of the
vehicle is in question.
The Code column of the DTC lists, identifies the DTC(s) with
an alpha designator and a three or four digit numerical code. The
DTC will help you narrow down the specific component or module
in question.
A DTC has a standardized format that can be interpreted as fol-
lows:
The first part of the DTC is the Alpha Designator. The alpha
designator can either be:
B - Body electronics (i.e., door and hood latches)
C - Chassis (i.e., traction control or ABS )
P - Powertrain (i.e., engine, transmission, or engine support
components)
U- Network communications for the CAN interface
The second part of the DTC, is a three or four digit numerical
code that is used to identify a code for the specific alpha designator.
The OBD-II specification has reserved the first one thousand
entries for a core set that are uniformly implemented across all
vehicle manufacturers. DTCs after the core set are available for
manufacturer specific uses. Type of Code will be 0 for the core set,
or a value of 1 - 9 for manufacturer specific numerical codes. The
Indicated System and Specific Code Number further narrow down
the numerical code to a specific component or system.