Global OBD II Diagnostics

Most of the functions displayed on the Review Data screen are self explana- tory. Only one function, Playback, needs detailed instructions. Follow the prompts and instructions provided by the scan tool.

If data does not exist for the function

 

 

you selected to review (for example

Datack

]

Vehicle Info), a message informs you

 

 

to run the function first.

INFOBefore

 

cate data recorded before the trigger

 

Playback

Reviewta

 

The Playback function is used to play

 

 

back a recording. This function is very

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similar to View Data. The only differ-

8VehicleInfo

 

ence is that View Data is a real time

 

 

viewing of PIDs, while Playback is a

 

 

viewing of previously recorded PIDs.

 

 

To play back your vehicle’s recorded PIDs, select Pl yb

m the Review

Data list. Press the

key to continue.

 

The scan tool displays a NO RECORDING PRESENT m ssage if a recording 4

does not exist. Otherwise, press

to play

ck the r co ding. The scan

tool plays back the Entire Data List or the Cust m

List, dep

di g on

how the data was recorded.

 

No

 

StoredIn

 

The Playback is composed of three

 

 

 

lines of data and one line for the frame

 

 

 

number and timestamp (in seconds).

 

 

 

Negative frames and timestamps indi-

 

Tool.

VEHICLE

~

event. Positive frames and timestamps

 

 

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.

 

indicate data recorded after the trigger event.

 

 

 

 

 

Use the

 

arrow keys to view the r

corded

ID data of each frame.

RIGHTLEFT/RIGHTUP/DOWNBACK

 

]

LEFT

 

 

 

The end of the list is reached when only the

(up) con is visible.

 

 

Use the

 

arrow keys to scroll back and forth through the frames.

The

arrow key advances to the next fram

, “wrapping arou d” to the

earliest frame when the final frame is reached. The

 

arrow key goes back

to the previous frame, again “wrapping around” to the final f ame.

 

 

Different vehicles communicate at different speeds and support a different

 

number of PIDs. Therefore, the maximum number of frames that can be

 

recorded will vary.

 

 

 

 

 

 

 

Some vehicles waitENTERa long period of time to store a trouble code after the

 

driveability problem occurs. If you selected “Trigger On Codes” when you

made your recording, you might not see any drastic change in data param-

 

eters before and after the triggerENTERpoint. In cases like this, the user can

 

manually trigger the recording when the symptom is observed.

 

 

 

When done, press

to return to Review Data or to the OBDII Function

List.

 

 

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Actron 9640A manual Playback, Datack