Using the Scan Tool
CODE RETRIEVAL PROCEDURE
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For technical questions, please call 1-888-866-5797.
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Choose
FixAssist
to view FixAssist information for the “priority”
DTC.
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Choose
Freeze Frame
to view Freeze Frame data for the “priority”
DTC.
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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 Scan Tool automatically displays the
code definitions (if available) for Generic DTC’s.
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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 DTC was retrieved, and to view Freeze Frame Data,
press and release
DTC/FF
, as necessary.
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Each time
DTC/FF
is pressed and released, the Scan Tool will
scroll and display the next DTC in sequence until all DTCs in its
memory have displayed.
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Freeze Frame Data (if available) will display after DTC #1.
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In
OBD2
systems,
when
an
emissions-related engine malfunction
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 conditions 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 Scan Tool 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.
14.
When the last retrieved DTC has been displayed and
DTC/FF
is pressed, the Scan Tool returns to the “Priority” Code.
15.
Determine engine system(s) condition by viewing the display
for any retrieved Diagnostic Trouble Codes, code definitions and
Freeze Frame data, interpreting the green, yellow and red LEDs.
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If DTC’s were retrieved and you are going to perform the repairs
yourself, proceed by consulting the Vehicle’s Service Repair
Manual for testing instructions, testing procedures, and flow
charts related to retrieved code(s).
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