Innova 3100j Owner's Manual page 40

Using the Diagnostic Tool
CODE RETRIEVAL PROCEDURE
B. MONITOR NOT RUN STATUS –
If the diagnostic tool's LCD
display shows a zero (indicating
there are no DTC's present in
the
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.
Red LED – Indicates there is a
problem with one or more of the
vehicle's systems. The red LED is
also used to indicate that DTC(s) are
present (displayed on the diagnostic
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 diagnostic tool automatically
displays the code definitions for Generic DTC's.
DTC's that start with "P1" and some "P3" are Manufacturer Specific
codes and their code definitions vary with each vehicle
manufacturer.
13. If more than one code was retrieved press the DTC button, as necessary,
to display additional codes one at a time.
Each time the DTC button is pressed and released, the
diagnostic tool will scroll and display the next DTC in sequence
until all DTCs in its memory have displayed.
In OBD2
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 tempera-
ture, calculated load value, fuel pressure, vehicle speed, air flow
rate, and intake manifold pressure. See VIEWING FREEZE
FRAME DATAon page 39.
38
vehicle's computer
systems, when an
3100j