Equus 3120 - OBD 2&1 Tool Kit - Manual (Page 29)

OBD2 & 1 27
E
OBD2 Systems
CODE RETRIEVAL PROCEDURE
■ Red LED – Indicates there is a prob-
lem with one or more of the vehicle’s
systems. The red LED is also used to
indicate that DTC(s) are present (dis-
played on the Tool’s screen). In this
case, the Multifunction 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 Tool automatically displays the
code definitions for Generic DTC’s.
■ DTC’s that start with “P1” and some
“P3” are Enhanced (Manufacturer spe-
cific) codes and their code definitions
vary with each vehicle manufacturer.
When an Enhanced (Manufacturer
specific) DTC is retrieved, the LCD dis-
play shows a list of vehicle manufactur-
ers. Use the UP
and DOWN
buttons, as necessary, to highlight the appropriate manufacturer,
then press the ENTER/FF
button to display the correct code
definition for your vehicle.
If the manufacturer for your vehicle is not listed, use the
UP
and DOWN buttons, as necessary, to select
Other manufacturer and press the ENTER/FF but-
ton for additional DTC information.
If the Manufacturer Specific
definition for the currently dis-
played code is not available, an
advisory message shows on
the Tool’s LCD display.
10. If more than one code was retrieved press the DTC SCROLL
button, as necessary, to display additional codes one at a time.
■ Whenever the Scroll function is used to view additional codes,
the Tool’s communication link with the vehicle’s computer dis-
connects. To re-establish communication, press the LINK
button again.
11. Freeze Frame Data (if available) can be viewed at any time (except
MENU mode) by pressing the ENTER/FF button.