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Using the Scan Tool
CODE RETRIEVAL PROCEDURE
10
The Scan Tool is capable of retrieving and storing up to 32
codes in memory, for immediate or later viewing.
11. Refer to DISPLAY FUNCTIONS on page 4 for a description of
display elements.
In the case of long code definitions,
a small arrow is shown in the
upper/lower right-hand corner of the
Scan Tool display area to indicate
the presence of additional
information.
If a definition for the currently
displayed code is not available, an
advisory message shows.
12. Read and interpret Diagnostic Trouble Codes/system condition
using the display and the green, yellow and red LEDs.
The green, yellow and red LEDs are used (with the display) as
visual aids to make it easier to determine engine system
conditions.
Green LED – Indicates that all
engine systems are “OK” and
operating normally. All monitors
supported by the vehicle have run
and performed their diagnostic
testing, and no trouble codes are
present. All Monitor icons will be
solid.
Yellow LED – Indicates one of the
following conditions:
A. Green LED – Indicates that all
engine systems are “OK” and
operating normally. All monitors
supported by the vehicle have run
and performed their diagnostic
testing, and no trouble codes are
present. All Monitor icons will be
solid.
B. MONITOR NOT RUN STATUS – If
the 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
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.
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