Actron 9640 User Manual

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 Getting Started
GM Historic
Prior to1996, most GM vehicles used the 12-pin Assembly Line Diagnostic Link 
(ALDL) DLC. The GM ALDL cable kit includes the ALDL adapter and cigarette 
lighter power cable. This adapter cable is included with the scan tool. In 1994 
and 1995, certain GM vehicles use the J1962 (OBD II) DLC, but are not OBD 
Use the Battery Power cable to provide 12V to the tool.
The ALDL DLCs are usually located under 
the dashboard on the driver’s side. 
On Corvettes & Fieros, the DLC may be 
located in the center console behind the 
ashtray. Refer to vehicle service manual for 
exact location. It may be in full view, or it 
may be recessed behind a panel. An 
opening in the panel should allow access to the recessed connector. 
STI
Pigtail
WHITE
Tach
Connector
DO NOT USE!
6-Pin MECS
6-Pin MECS
4
5
6
1
2
3
To
Clip to good
vehicle ground
Cable Adapter
6-Pin MECS
Vehicle DLC
6-Pin MECS
P/N 9603
IMPORTANT
F
G
E
H
D
J
C
K
B
L
A
M
ALDL