are u gunna try and install one for your ss/tc?

 

I'm kinda tempted to make up a wire harness if I could find someone local w/ RPD willing to be a guinea pig

 

For a cable why not pick up an OBDII open end cable from here
http://www.obd2cables.com/products/i...dd0851f5783eae
and put the RPD connector on the other end the only additional wire you would need is the ignition. The OBDII port has
battery voltage on pin 16 and ground on pin 4 and you could splice in the ignition to one of the unused
wires in the ODBII cable.

 

found some good ****

http://www.gmpartsdirect.com/results.cfm


thats one 198 for RPD

http://www.gmpartsdirect.com/results.cfm

And harness for 220

 

If you decide to fabricate something or splice and wire in the gauge yourself you'd want to do it right and solder all electrical connections (and especially the data bus connections). The quick splice/tap type connectors can seem to work okay initially but you'll run a much greater chance for electrical gremlins.

 

with a wideband, any possibility of wiring this into an 06 SC?

 

OK not to rain on everybody's parade,but I belive the bcm may need to be programmed for the rpd to even work. for example when i put a bcm in a cobalt i have to list all the options it has so tis can program the bcm accordingly ie remote start, power door locks, perhaps rpd ill have to look into it. i wanted to do this on my 08 so ill try to help everyone and not just myself.

 

You cant just plug the RPD into the DLC it will NOT work. The RPD operates on the GMLAN High speed network, and like all modules on theis network it uses 4 wires to communicate. That is 2 in and 2 out. CKT2500 GMLANHS+ comes from the BCM goes into the RPD and then comes out and continues to connector under the dash., the same for CKT2501 GMLANHS-, it goes directly from the BCM to the RPD and then out and down to the connector under the dash, and then onto the rest of the network.

All of these modules are wired in and only work in series. you cant just tap into the DLC(parallel)

Also any module loses connection, the car wont run.

The proper terminal for this circuit is a Micro .64, that is a terminal that is only .64mm in diameter. these must be crimped with the proper tool or the terminal will be damaged and wont engage in the connector and will damage its mating terminal

Theres currently no programming reference for the display. Which means the service manual says its simply plug and play. You just screw it to the pillar(a unique pillar) and plug it in.

 

I have a question about the 09. I am about to buy and 09 4 door SS and the RPD is not an option and I was kinda bumd about this. Will the RPD be plug and play with the 09 if ordered after? I under stand if you have to get something reprogrammed, I just don't want to do any splicing. Any info would be great.

And before anyone says get the coupe I can't, we are expecting a baby and that is the reason for the 4 door or I would be getting a coupe.

 

The RPD isnt plug and play, PERIOD.(coupe or sedan) it requires fabrication of harnesses and splicing into the high priority communication lines of the vehicle

Sedan is cool, I want one, but trust me, you can have a baby in the coupe. Ive got a two year old son, a two year old niece and a 5 month old niece and they all have been in the car at least once.

The only real issue is that Grandma has a hard time kissing whoever is sitting in the middle seat.

 

My wife will drive the car most with the kid and I really don't want to put that on here for my enjoyment. I will be selling my car for her to get a new car and when we settle down and I get a job without travel I will get me a full time car again. She also doesn't car if I mod the new car so that way we are both happy. I just really want that damn RPD for some reason. I just don't see why they would offer something that cheap from the factory and not be plug and play. I didn't think they would really have all that much time on the line for such a extensive install.

 

RBC, the difference between the 2 is the dash harness. One the RPD ones it has an extra connector and slightly different wiring for the connector, its not much. However, both the stock dash harness and the RPD dash harness cost $300 MSRP. So technically if you could swap the stock for the RPD option harness and pay the difference it would only be a few doallers, but good luck finding someone to buy the stock harness from you for that much.

 

I wish GM wasn't such dicks about putting it on the 4 door.

 

Another issue is one for all the '08 guys that want one. The 2009 uses a different body control module(which is what the RPD is "downstream" from) than the 2008 cars.

I dont know what the difference is yet(there is no physical connector or pinout difference as far as I can tell), or if the 08 BCM will still allow the RPD to communicate.

 

so no way that there will be a kit u could buy from GM and the install it and reprogram it?

 

Nope...not for an 08... it has already been tried...there was even someone on here that was going to try to build a harness... I don't think they were successful though

Just go with an aftermarket... I have seen the rpd in person. It is neat, but doesn't do a whole lot. You have to turn the knob on the front to chose a new screen (not something you are going to be doing while performing a pull) and it does not data log (so you will have no idea how well you did over the course of a pull unless you watch it constantly)...it is also a thick square box that sits in the corner (it does have a cool starting screen) ...I have also seen the dashhawk in person and I must say that was pretty nice (and you can hide the cord somewhat) but I think I am going to wait for a dash DAQ myself (it has a nicer display)....

 

Get me an 08 I'll make it work, its really NOT that hard people are reading WAY To far into this whole thing

 

god damn it.. come to nj and i will let you take my entire interior apart... While your back there you can do all the led work you want... PLEASE COME TO NJ!!!!

 

LOL well I do have a house in DE so that may not be as crazy as it sounds, a friend of mine has an 08 if shes game I'll slap one in hers first

 

N00b on here. Hoping to get an '09 SS/TC tonight.

I know it's an old post, but just in case the complete set of part numbers for the RPD isn't around....

Quote I got from a local dealer for the parts required for the RPD:
20778524 $448.35 RPD Unit (Later part number)
25860281 $16.10 Cover
25860279 $17.25 Bezel
15827871 $48.80 Molding
25947708 $390.93 Harness

I know folks had the RPD unit and harness part numbers, but that's the entire list the parts guy gave.
Service said it'd be 6 hours of labor @ about $100/hour, but since they had never done it, they couldn't guarantee anything!



Total came out to like $1724 using the Chevy dealer MSRP.

Tony

 

Holy cow... I'm glad I selected the $295 RPD option.

 

Yep - that's why I'm working on getting an '09 tonight.
Only downside is it has 241mi, as a result of being traded from 1 dealer to another, and probably a few test drives, but it has all the good stuff: LSD, HiWing, RPD, USB Radio, Sunroof, and real spare. Plus, the black+red interior, of which there is only 1 more in the state, about 200mi north, and it has the later near $26K MSRP.


T

 

RPD technical question:

Where is the "inlet temp" in the RPD getting measured from? Is is getting that from the IAT2? Where specifically is the IAT2 measured from... IC cold side?

 

I'm no authority on this, but it seems like its getting the inlet temperature from the intake tract (pre turbo). You can rod on the car forever and that number never deviates very far from ambient. At least mine doesnt anyway.

 

Where can I get the RPD Pillar Part ##### is that that one in post 45??