Innova 3120d, Руководство пользователя, Страница: 39 / 131

Using the Diagnostic Tool
CODE RETRIEVAL PROCEDURE
3120d 37
- If the correct manufacturer is
shown, use the UP and
DOWN buttons, as necessary,
to highlight YES, then press the
ENTER
button to continue.
- If the correct manufacturer is not shown, use the UP and
DOWN buttons, as necessary, to highlight NO, then press
the ENTER button to return to the list of vehicle
manufacturers.
If the manufacturer for your vehicle is not listed, use the UP
and DOWN buttons, as necessary, to select Other
manufacturer and press the ENTER button for additional
DTC information.
If the definition for the currently
displayed code is not available, an
advisory message shows on the
Diagnostic Tool’s LCD display.
10. If more than one DTC was retrieved,
and to view Freeze Frame Data, press
and release the DTC button, as
necessary.
„ Each time the DTC button is pressed and released, the
Diagnostic Tool will scroll and display the next DTC in sequence
until all DTCs in its memory have displayed.
„ In OBD2 systems, when an emissions-related engine malfunction
occurs that causes a DTC to set, a record 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.
See VIEWING FREEZE FRAME DATA on page 106.
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
Diagnostic 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.
Retrieved information can be uploaded to a Personal Computer
(PC) with the use of optional software (see instructions included
with the software for more information).
11. When the last retrieved DTC has been displayed and the DTC
button is pressed, the Diagnostic Tool returns to the “Priority” Code.
12. Determine engine system(s) condition by viewing the Diagnostic
Tool’s display for any retrieved Diagnostic Trouble Codes, code
definitions and Freeze Frame data, interpreting the green, yellow
and red LEDs.