CTS V6-2.8L (2006)
The modules on the GMLAN serial data line are:
-
ECM
-
TCM
KEYWORD SERIAL DATA LINE (TR7)
The keyword protocols utilize a single wire bi-directional data line between the modules and the scan tool. The message structure is a request and
response arrangement. The keyword serial data line is used for scan tool diagnostics only. The modules do not exchange data on this circuit.
The modules on the GMLAN serial data line are:
-
Headlamp - Left
-
Headlamp - Right