Equus 3100 - CanOBD2 Diagnostic Tool - Manual (Page 42)

Using the Diagnostic Tool
CODE RETRIEVAL PROCEDURE
40 OBD2
„ The Diagnostic Trouble Code (DTC) and related code definition
are shown in the lower section of the LCD display.
In the case of long code definitions, a small arrow is
shown in the upper/lower right-hand corner of the code
display area to indicate the presence of additional
information. Use the
and buttons, as necessary,
to view the additional information.
8. Read and interpret Diagnostic Trouble Codes/system condition
using the LCD display and the green, yellow and red LEDs.
The green, yellow and red LEDs are used (with the LCD
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. A zero will show on the
Diagnostic Tool’s LCD display, and
all Monitor icons will be solid.
„ Yellow LED – Indicates one of the
following conditions:
A. PENDING CODE IS
PRESENT – If the yellow LED
is illuminated, it may indicate a
Pending code is present.
Check the Diagnostic Tool’s
LCD display for confirmation.
A Pending code is confirmed
by the presence of a numeric
code and the word PENDING
on the Diagnostic Tool’s LCD
display.
B. MONITOR NOT RUN
STATUS – If the Diagnostic
Tool’s LCD 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
Diagnostic Tool’s LCD 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.