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Using the Scan Tool
THE SYSTEM MENU
THE SYSTEM MENU
In OBD2 systems, when an emis-
sions-related engine malfunction oc-
curs that causes a DTC to set, a re-
cord or snapshot of engine conditions
at the time that the malfunction
occurred is also saved in the vehicle's
computer memory. The record saved
is called Freeze Frame data. Saved
engine conditions include, but are not
limited to: engine speed, open or closed loop operation, fuel system
commands, coolant temperature, calculated load value, fuel
pressure, vehicle speed, air flow rate, and intake manifold pressure.
If more than one malfunction is present that causes more than
one DTC to be set, only the code with the highest priority will
contain Freeze Frame data. The code designated "01" on the
Scan Tool display is referred to as the PRIORITY code, and
Freeze Frame data always refers to this code. The priority
code is also the one that has commanded the MIL on.
14. When the last retrieved DTC has been displayed and DTC/FF is
pressed, the Scan Tool returns to the "Priority" Code.
15. Determine engine system(s) condition by viewing the display for any
retrieved Diagnostic Trouble Codes, code definitions and Freeze
Frame data, and interpreting the green, yellow and red LEDs.
If DTC's were retrieved and you are going to perform the repairs
yourself, proceed by consulting the Vehicle's Service Repair
Manual for testing instructions, testing procedures, and flow
charts related to retrieved code(s).
THE SYSTEM MENU
The System Menu provides the ability to
retrieve "enhanced" DTCs and Anti-Lock
Brake System (ABS) DTCs for most Audi,
BMW, Chrysler/Jeep, Ford/Mazda, GM/Isuzu,
Hyundai, Kia, Mercedes Benz, Toyota/Lexus
and Volkswagen vehicles. The types of
enhanced data available depends on the
vehicle make. You can also return to the
Global OBD2 mode.
Depending on the vehicle under test, some features and
functions may not be available.
To access the System Menu, press SYSTEM MENU
desired option, then press ENTER
information.
To view ABS DTCs: Select ABS from the System Menu. Refer to
VIEWING ABS DTCson page 13 to view ABS DTCs for your vehicle.
To view OEM enhanced DTCs: Select OEM Enhanced from the
System Menu. Refer to VIEWING OEM ENHANCED DTCs on page 11
to view OEM enhanced DTCs for your vehicle.
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For technical questions, please call 1-888-866-5797
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