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bramcody 07-03-2013 04:33 PM

OBD2 Communication Question
I have a 2005 JGC Laredo Rocky Mountain Ed. Im looking at doing some custom tuning on it, but I need to know if it uses SCI or CAN to communicate. Is there anyone that knows this information? Please let me know

jeepgcoman 07-03-2013 05:00 PM

Re: OBD2 Communication Question
As far as I know all WK's are CAN Bus. Don't know much about the V-6's and even less about the diesels though.

bramcody 07-03-2013 05:33 PM

Re: OBD2 Communication Question
Ok what about the 4.7?

Willx 07-03-2013 05:39 PM

Re: OBD2 Communication Question

Originally Posted by bramcody (Post 852498)
Ok what about the 4.7?


Reference: CAN Bus Equipped Vehicles - Complete Vehicle Make, Model and Year List

jeepgcoman 07-03-2013 05:54 PM

Re: OBD2 Communication Question
Found this is my notes:

"Controller Area Network (CAN) electrical systems began to appear in new vehicles in 2003. Since then, more and more vehicles have been equipped with CAN systems, until 2008 when virtually all passenger cars and light trucks sold in the U.S. were CAN-equipped.
As a vehicle owner or do-it-yourself mechanic, you need to know how CAN has made the electrical system in late model cars and trucks much more complicated than ever before. CAN allows various modules and systems to share data and interact in ways that where previously impossible.
So what exactly is CAN? It is a communication standard that allows the various modules and computers in a vehicle to talk to one another via a common "data bus" circuit in the wiring system. Think of it as a high speed party line that allows data and commands to zip back and forth from one module to another. This allows the Powertrain Control Module (PCM), antilock brake/traction control/stability control system, electronic steering, electronic suspension, automatic climate control system, keyless entry system, lighting control modules and dozens of other systems and modules to all be interconnected electronically."

Hope this clarifies it for you.

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