Using the Scan Tool
CODE RETRIEVAL PROCEDURE
36 3140d
Yellow LED – Indicates one of the
following conditions:
A. A PENDING CODE IS PRESENT –
If the yellow LED is illuminated, it
may indicate a Pending code is
present. Check the scan tool’s
display for confirmation. A Pending
code is confirmed by the presence
of a numeric code and the word
PENDING on the scan tool’s display.
B. MONITOR NOT RUN STATUS – If
the scan tool’s display shows a
zero (indicating there are no DTC’s
present in the vehicle’s computer
memory), but the yellow LED is
illuminated, it may be an indication
that some of the Monitors
supported by the vehicle have not
yet run and completed their
diagnostic testing. Check the scan
tool’s display for confirmation. All
Monitor icons that are blinking have not yet run and
completed their diagnostic testing; all Monitor icons that are
solid have run and completed their diagnostic testing.
Red LED – Indicates there is a
problem with one or more of the
vehicle’s systems. The red LED is
also used to indicate that DTC(s)
are present (displayed on the scan
tool’s screen). In this case, the
Malfunction Indicator (Check Engine)
lamp on the vehicle’s instrument
panel will be illuminated.
DTC’s that start with “P0”, “P2” and
some “P3” are considered Generic
(Universal). All Generic DTC definitions are the same on all OBD2
equipped vehicles. The scan tool automatically displays the code
definitions (if available) for Generic DTC’s.
DTC’s that start with “P1” and some
“P3” are Manufacturer specific codes
and their code definitions vary with
each vehicle manufacturer. When a
Manufacturer specific DTC is retrieved,
the LCD display shows a list of vehicle
manufacturers. Use the UP
and
DOWN
buttons, as necessary, to
highlight the appropriate manufacturer, then press the ENTER
button to display the correct code definition for your vehicle. A
confirmation message shows on the LCD display.
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