Re: Programming Skreem Module
Originally Posted by
Toolman
The 2007 and 2008 Crossfires (US Market) have the Can-Bus communications protocol which the earlier Crossfires do not. Rather than me trying to explain what that is Wikipedia gives a good description:
https://en.wikipedia.org/wiki/CAN_bus The DRBIII is not a Can-Bus capable tool. The Starscan was developed for Can-Bus vehicles.
Even off the shelf OBDII scanners come Can-Bus or not capable. Off the shelf scanners read the majority of engine and emissions codes, however, manufactures can use different cable pins and diagnostic programming and codes for other modules in the car.
The Crossfires have the Mercedes SLK code and mixed in some Chrysler to make them unique to themselves. As we know with the Daimler Chrysler break up they became the unwanted step children. Most Chrysler mechanics do not have specific training on them or experience.
Interesting, I just don't recall the entire bus system being different for the later years. All of the schematics I see show SCI transmit from all of the modules to the data link connector.
A simple check to see if the CAN bus is in use in a vehicle, and accessible via the OBD socket, is to connect a resistance meter across pin 6 and pin 14. Due to the combined resistance of the two termination resistors at 120 Ohms each the overall resistance should be read as 60 Ohms. And makes for a great troubleshooting tool when we know which modules have the termination resistors.
If the '07s and '08's are CAN bus then the entire wiring harness is different. This means CAN C bus would be on pins 6 & 14 to be OBD2 compliant. The schematic I have shows those pins are not even used.
Do you have 07 or 08 schematics available?
https://lh3.googleusercontent.com/-T...DII_Pinout.jpg
Last edited by KDW4Him; Jan 21, 2016 at 11:37 PM.