CAT (Gray) Female Test Connector, 9-position VI) GM 454 V-8

VI) GM 454 V-8

and malfunction trouble code reading and clearing (including freeze-frame data)

These 9-pin RS-232 serial cables can be used to increase the distance between the OBD2 All-In-One unit and your computer or laptop

There are two versions of this adapter

This cable has a 12 pin OBD1 connector shell to plug in under your cars dash to interface to your cars ECM

CAT (Gray) Female Test Connector, 9-position VI) GM 454 V-8CAT Industrial uses a similar connector to the J1939 Connector. It is also a 9 pin Deutsch, but the center pin has no key tab. Also the socket shrouds are slightly larger. You can try to force a fit, but DO NOT. It has a very different pin assignment: Cavity Description A Battery B Ground C CAN Shield D CAT Data Link + E CAT Data Link F J1939 G J1939+ H J1708 J J1708+