Equus 3150 - ABS/SRS + OBD2 Diagnostic Tool - Manual (Page 41)

Using the Code Reader
CODE RETRIEVAL PROCEDURE
OBD2 39
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 button
for additional DTC information.
If the Manufacturer Specific
definition for the currently
displayed code is not available,
an advisory message shows
on the Code Reader’s LCD
display.
10.
If more than one code was retrieved press
the DTC SCROLL button, as neces-
sary, to display additional codes one at a time.
„ Whenever the Scroll function is used to view additional codes,
the Code Reader’s communication link with the vehicle’s
computer disconnects. 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.
„ In OBD2 systems, when an
emissions-related engine malfunc-
tion occurs that causes a DTC to set,
a record or snapshot of engine
conditions at the time that the
malfunction occurred is also saved
in the vehicle’s computer memory.
The record saved is called Freeze
Frame data. Saved engine condi-
tions include, but are not limited to: engine speed, open or
closed loop operation, fuel system commands, coolant
temperature, calculated load value, fuel pressure, vehicle speed,
air flow rate, and intake manifold pressure.
If more than one malfunction is present that causes more
than one DTC to be set, only the code with the highest
priority will contain Freeze Frame data. The code
designated “01” on the Code Reader display is referred to
as the PRIORITY code, and Freeze Frame data always
refers to this code. The priority code is also the one that
has commanded the MIL on.
If Freeze Frame data is not
available for the code shown
on the LCD display when the
ENTER/FF
button is
pressed, an advisory message
shows on the LCD display.
Press the DTC SCROLL
button to return to the previous
code display.