Does anyone know if there is a BCM (Body Control Module) on the 1998 Dakota. If so where is it and what wire is the PCI Bus wire? I'd assume you can get to the Bus wire via the Data port. I'm installing an Overhead Travel Information System (OTIS) from a Chrysler 300M. Either way the OTIS is going in. Just without detailed data. Compass and time will work without a BCM. (Will take pics).

 

the dakota ones AFAIK are part of the PCM/ECM I think.

I believe the PCI bus is accessable behind the radio (has a white clip and is taped off with aftermarket units) i think.

 

so we have installed the OTIS and every thing works fine besides the BCM PCI bus wire because we cannot find the bus line to connect it to. my truck has a digital odometer so we know it will work so if anyone know where this bus line is located it would be greatly appreciated.

 

did you check the radio as I mentioned above? I know the crutchfield tech called it a bus wire but i didnt catch what it was for.

 

Yeah we pulled the dash and there is nothing behind the radio but the actual radio harness. So we connected it to the Bus + on the gauge cluster and didn't get anything from that either. (VLT/BK) We also connected it to the data port on the bottom of the dash.

 

in yout truck it's called a central timmer module (who knows why ) but there are two styles and this is copyed from the book
Both versions of the CTM are mounted under the passenger side end of the instrument panel, outboard of the instrument panel glove box opening.
I dont think the ctm and the otis will talke to each other the ctm is a CCD data type but give it a try good luck

 

If the Dakota you are working on is a 98, it uses the CCD bus and not PCI. CCD uses two wires instead of just one, which is the reason for having two different CTM's. They made a CCD version and a PCI version. If the OTIS came from a CCD car, all you have to do is splice the bus wires for the OTIS into pre-existing bus wires.

 

the otis i grabbed has 1 wire for the bus line and the truck has the 2 lines so now all i can use it for is my direction unless anybody knows how i could hook that up, i have no idea on how i would do that

 

If the OTIS has one wire, you can't. The different bus types are not compatible.

 

thats what i thought but thanks anyways