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About the Scan Tool
DISPLAY FUNCTIONS
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5. M (Menu) button – When pressed, displays the Main Menu.
6. LD button – When pressed while linked to a vehicle, places the
Scan Tool in Live Data mode.
7. UP button – When in MENU mode, scrolls UP through the
menu options. When LINKED to a vehicle, scrolls UP through the
current display screen to display any additional data.
8. ENTER button - When in Menu mode, confirms the selected
option or value.
9. DOWN button - When in MENU mode, scrolls down through the
menu options.
When LINKED to a vehicle, scrolls down through the
current display screen to display any additional data.
10. GREEN LED - Indicates that all engine systems are running
normally (all Monitors on the vehicle are active and performing
their
diag
nostic testing, and no DTCs
are present).
11. YELLOW LED - Indicates there is a possible problem. A “Pending”
DTC is present and/or some of the vehicle's emission monitors have
not run their diagnostic testin
g.
12. RED LED - Indicates there is a problem in one or more of the
vehicle's systems. The red LED is also used to show that DTC(s)
are present. DTCs are shown on the Scan Tool’s LCD display. In
this case, the Malfunction Indicator (“Check Engine”) lamp
on the
vehicle's instrument panel will light steady on.
13. Display - Displays test results, Scan Tool functions and Monitor status
information. See DISPLAY FUNCTIONS, below, for details.
14. CABLE - Connects the Scan Tool to the vehicle's Data Link Connecto
r
(DLC).
DISPLAY FUNCTIONS
Figure 2. Display Functions
See Figure 2 for the locations of items 1 through 15, below.
1. I/M MONITOR STATUS field - Identifies the I/M Monitor status area.
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5
7
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12
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9
13
15
SYSTEM TEST MENU
Additional Tests
SYSTEM TEST MENU
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6. When you have finished viewing test data for all desired sensors,
select Back, then press ENTER
to return to the System Test
menu; or, press M to return to the Main Menu.
OBD Monitor Test
The OBD Monitor Test function retrieves and displays test results for
emission-related powertrain components and systems that are not
continuously monitored. The tests available are determined by the
vehicle manufacturer.
The Scan Tool does not perform the OBD monitor test, but
retrieves results from the most recently performed tests from
the on-board computer’s memory. You may retrieve OBD
monitor test results for only one test at any given time.
1. From the System Test menu, select
OBD Monitor Test, then press ENTER
.
2. A “One moment please. . .” message
displays, followed by the Select Test
screen. (Refer to the vehicle’s service
repair manual for information related to
non-continuous tests.)
If OBD monitor test data is not presently stored in the vehicle’s
computer, an advisory message displays. Press M to return to
the Main Menu.
If OBD monitor tests are not supported by the vehicle under test,
an advisory message displays. Press M to return to the Main
Menu.
3. Use the UP
and DOWN buttons,
as necessary, to highlight the desired test,
then press the ENTER
button.
Test ID number
Module ID number
Component ID number
Min or Max test limit (Only one test limit, either Min or Max, is
shown for any given test.)
Test Value and status
Status is calculated by the Scan Tool by comparing the Test
Value against the displayed test limit (either Min or Max).
Status is shown as either Low, High or OK.
4. When you have finished viewing the retrieved test data, select Back
on the Select Test screen, then press ENTER
to return to the
System Test menu; or, press M to return to the Main Menu.
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