Accessing Freeze Frame Data - Aston Martin DB7 Workshop Manual

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The Aston Martin Lagonda Diagnostic System
Users Guide
#
Accessing Freeze Frame Data
The freeze frame data is vital in analysing unresolved
trouble codes. If an emissions related trouble code occurs,
complete a diagnostic trouble code report form including
the vehicle data, logged trouble codes and the freeze
frame data. Fax a copy of the form to Aston Martin Service
Operations Department w h o will assist in resolving the
concern.
To access freeze frame data, proceed as follows:
1. Switch on the PDU and select 'Engine Diagnostics.
2. Select 'OBD II Scan Tool'. The scan tool software
will load and the 'Cable Setup' screen will appear.
3. Connect the PDU to the lower diagnostic socket
using the multi protocol adaptor (MPA). Svvitch on
the ignition. After communications are established,
the OBD 1 1 Main Menu will appear.
OBD 1 1 Main Menu
• Monitor current powertrain
data
D
• Request emission trouble codes 1 ^ ^ 1
• Monitor freeze frame data
' Clear emission trouble codes
• D o n i i a c t nw\/rtan c o n c r y O
4. Select 'Request Emission TroubleCodes' and press
the 'tick' icon. , ., - . i-
Diagnostic Trouble Codes
0:P1243
o
5. Any logged diagnostic trouble codes w i l l be
displayed on the screen (e.g. 0:P1243). Record
both the list number (e.g. 0,1,2, etc) and the logged
'P' codes (e.g. PI 243, etc).
6. Press the 'tick' icon and return to the OBD II main
menu.
OBD II Main Menu
• Monitor current powertrain
data
• Request emission trouble codes
• Monitor freeze frame data
• Clear emission trouble codes
• D o n i i o c t nvx/nort cancnr
D
D
O
7. Select 'Monitor Freeze Frame Data' and press the
'tick' icon.
8. The numeric keypad screen will appear. Enter the
list number noted in step 5 for the fault code to be
investigated and press the 'tick' icon.
Freeze frame
^^HHI
CL
m [XI s
ci] s m
1 1 1 2 1 1 3 1
0 1
9. The 'Select PIDS to Monitor' screen will appear.
Select FO PIDs to Monitor
0 : SUPP 2 : FCFF
3 : FSS 4 : C L V
5 : ECT 6 : STFT-B1
7 : LTFT-B1 8 : STFT-B2
9 : LTFT-B2 12 : RPM
13 : VS
WWWM
o
September 1996
9-67