Cummins RoadRelay4

[DanDee]

Anybody tried or have seen the RoadRelay4 Cummins electronic engine moniter ? (not sure if it's out just yet)



www.cummins.com/na/pdf/en/products/dodgeram/3606386.pdf



Hopefully this is the right forum... I see other gauge q's posted here!



Thanks, Dan

 

[Mundgyver]

I have one installed on my 2001. Love it. If you get a check engin light, it tells you what is wrong. You can set your pm schedules and keep track of fuel usage by state. One of the best investments I made for diagnostics. keep me from having to pay the dealer for questionable information as to what they think might be wrong. You will like.

 

[DanDee]

Any idea on the cost?



Dan

 

[HoofinSoot]

What does it cost ?

 

[HoofinSoot]

 

[kstehnacs]

roadrelay 4

I wanted one for my 2002. Cummins dealer in PA finally got me answer... ... ... ... Dodge changed the ecm so much that I couldn't get one for my truck. Otherwise I would have one!

 

[DanDee]

Here is another link;



www.cummins.com/na/pages/en/products/trucks/electronics.cfm



I believe this one isn't a PDF, so it might be easier to read.



Dan

 

[DanDee]

Just sent Cummins an email... I'll see what they say.

 

[Bertram65]

Unless this is a brand new model they do not make one that will work with the CTD in a 3rd gen truck, something to do with DC changing something, that's what Cummins told me when I inquired about it a year ago.

 

[Mundgyver]

Mine was in the 750 to 800 range is if remember

 

[DanDee]

Well, just got an email back from Cummins about the RoadRelay 4... . long email, all canned about how great it is, etc. , but stuck in the middle was my answer;



"Cummins Road Relay 4 is NOT available for 2003 and later Dodge Ram pickup trucks due to communication conflicts between the engine ECM and the Dodge Ram truck ECM. "



Just like a few others have said...



Oh well, I tried... looks like it would have been a cool addition!!!



Dan

 

[rbattelle]

There's been a ton of research done on this already.



Check out this thread and follow the link in the first post.



Bottom line: can't be done.

 

[DanDee]

rbattelle... excellent link, looks like you covered just about everything!!!



Any chance something might change soon? Seems like I read that Dodge changed the ECM for 04 & the 48re, have to do a search when I have time... .



Sounds like if someone could hack this, you could set up your own fueling curve & program the ECM with a laptop & the right software! (Which means Dodge probably isn't going to allow that to happen!)



Anyway... Thanks for the good work!



Dan

 

[rbattelle]

I can't help but wonder if you '04 guys might be able to run a RoadRelay. The ECM change might have been in your favor. Alas, us 3rd gen guys are out of luck.

 

[Pawpaw]

Originally posted by rbattelle

I can't help but wonder if you '04 guys might be able to run a RoadRelay. The ECM change might have been in your favor. Alas, us 3rd gen guys are out of luck.

Oh, so now we're not even part of the 3rd gen???

 

[rbattelle]

Originally posted by BobHall

Oh, so now we're not even part of the 3rd gen???

Oops! Sorry about that, I meant "03". Didn't mean to try and boot you guys out!

 

[Pawpaw]

Originally posted by rbattelle

Oops! Sorry about that, I meant "03". Didn't mean to try and boot you guys out!

Yes, but I just HAD to pull the chain!

 

[artie]

I may have found out what happen to the ROADRELAY ability. I was looking a a block diagram of the ECM wiring in the 2004 Powertrain Diag book and it showed pins 4 and 5 of the 60 pin connector as being "HS CAN C" bus to talk to a "Cummins Service Tool" but those pins now have "Chrysler Collision Detection" (CCD) bus type signals on them, and connect to pins in the Data Link connector under the dash.