Instruction Manual

38 CAN OBD2
E
Using the Code Reader
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 Code Reader’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 Code Reader’s LCD dis-
play for confirmation. A Pending code
is confirmed by the presence of a
numeric code and the word PEND-
ING on the Code Reader’s LCD dis-
play.
B. MONITOR NOT RUN STATUS – If the
Code Reader’s LCD display shows a
zero (indicating there are no DTC’s
present in the vehicle’s computer
memory), but the yellow LED is illu-
minated, it may be an indication that
some of the Monitors supported by
the vehicle have not yet run and com-
pleted their diagnostic testing. Check
the Code Reader’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.