Equus 3120 - OBD 2&1 Tool Kit - Manual (Page 28)

26 OBD2 & 1
E
OBD2 Systems
CODE RETRIEVAL PROCEDURE
In the case of long code definitions, or when viewing
Freeze Frame data, 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 addi-
tional information.
9. 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 operat-
ing normally. All monitors supported
by the vehicle have run and per-
formed their diagnostic testing, and
no trouble codes are present. A zero
will show on the Tool’s LCD display,
and all Monitor icons will be solid.
■ 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 Tool’s LCD display for con-
firmation. A Pending code is con-
firmed by the presence of a numeric
code and the word PENDING on the
Tool’s LCD display.
B. MONITOR NOT RUN STATUS – If the
Tool’s LCD display shows a zero
(indicating there are no DTC’s pres-
ent in the vehicle’s computer memo-
ry), 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 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.