View freeze data, Dtc definition(s), Fault data – Actron Professional Enhanced Scan Tool 9640A User Manual

Page 58: O2 monitor test, Non-continuous tests, On-board systems

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GM Enhanced (OBD II) Diagnostics

5 – 12 • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • •

5

If one or more control modules stops
responding, the tool will display a mes-
sage that it is not responding. If you
choose to continue, dashes will replace
the module ID.

Press

FUNC

to return to the GM Function List.

View Freeze Data

When an emission-related fault occurs, certain vehicle conditions are recorded
by the on-board computer. This information is referred to as a Freeze Frame
data. The information is a “snapshot” of the operating conditions at the time of
a fault. This data can be overwritten by faults with a higher priority.

If codes were erased, then freeze frame data may not be stored in vehicle
memory.

Select

View Freeze Data

from the and

press

ENTER

. A vehicle can store more

than one Freeze Frames or Failure
records. Use the

UP/DOWN

arrow keys

to select a DTC.

DTC Definition(s)

Pressing the

RIGHT

arrow key displays

the DTC definition. Use the

UP/DOWN

arrow keys to view each DTC definition.

Pressing the

BACK

or

LEFT

arrow key

exits to the Freeze Data for: screen.
The cursor is positioned in front of the
last DTC definition viewed before exiting.

Fault Data

Select the Freeze Frame/Failure
Record and press the

ENTER

key to

display the PIDs recorded at the time of
the fault.

Use the

UP/DOWN

arrow keys to move

through the list. The

LEFT/RIGHT

arrow keys page up/down through the
list.

When done, press the

FUNC

key to return to the GM Function List.

O2 Monitor Test

Refer to

“O2 Monitor Test

” on page 4-6 of

Global OBD II Diagnostics.

Non-Continuous Tests

Refer to

“Non-Continuous Tests

” on page 4-7 of

Global OBD II Diagnostics.

On-Board Systems

Refer to

“On-Board Systems

” on page 4-7 of

Global OBD II Diagnostics.

Module $1F is not

Responding. Continue

Without it?

Yes <No> ~

Freeze Data for:

` P0107(Frz Frame)

P0405(Failure Rec) [

P1604(Failure Rec) ~

P0107 Mod$10 1 of 4

MAP/BARO

Circuit Low Input

[

~

FAIL REC DTC PO405

LOOP STATUS

N/A

CALC LOAD(%)

0.0[

ECT(

o

F)

-40.0~

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