serial data, which wire???
serial data, which wire??? I have a 2003 5.3/4L60E transplanted in a 47 chevy. I did the harness myself and which wire do I use?? My service manual say both are class 2 serial data, do I use either one, both or??????
Blue connector
#58 Dk Grn
#59 yel
Blue connector
#58 Dk Grn
#59 yel
If you need to hook the OBD2 port, then the dark green is the wire you need.
It is:
PCM dark green wire to OBD2 purple wire.
Direct battery 12V to OBD2 orange wire.
The 2 remaining wires on OBD2 to ground.
Thats all.
It is:
PCM dark green wire to OBD2 purple wire.
Direct battery 12V to OBD2 orange wire.
The 2 remaining wires on OBD2 to ground.
Thats all.
