How are you wiring the CAN connector?

[ukjaunt]

On a KPro4 there is a 10 pin connector internally that includes CAN and a punch of other pins. How are you guys getting that to the outside world?

Seems like two options
1) I make a little harness from the 10 pin connector internally and cut a hole in the side of the case for a 10+ pin plug (or even just a DB9)
2) run the harness out through the main white connector

I'd prefer to do it through the main connector and there are plenty of empty pins towards the middle of the connector. Where do you get pins for that, are they standard and how do you stop them from just pushing in when you connect to them. The existing pins do a right angle and run down to the board.

How did you do it?

[Spunkster]

You would have to make a hole in the case to bring the wires through to the outside. There are no pins to add to the main ECU plug itself.

[ukjaunt]

Great, thanks Spunkster.

I might as well keep this thread rolling if I'm going to do this in case others have any interest.
So looking at the board the pins on the digital connector on the PCB are
- Ground
- Digital out
- 2 digital inputs (+ & -)
- 2 rs232 (transmit and receive)
- 2 CAN (high and low)
- Eth which I'm guessing might be for an ethanol sensor
- Vss which could be an input for vehicle speed sensor or voltage source supply. Guessing speed.

Format is in here
http://www.hondata.com/help/kmanager/in ... output.htm
so its a regular (not extended) CAN frame with 11 bit identifier, 1 mbps speed, doesn't have a 120 ohm resistor, will need to terminate elsewhere.

Have ordered a connector from jaycar, hopefully its part HM3410.

Next is to consider which external connector for the side of the case. I'll have to measure what height I've got to play with between the lid and PCB (don't have ECU with me). Round is easier because its a drill press job and not a mill heckle. Using all 10 pins means a GX16/QL16 might be nice but its a 16mm hole. Could do DB9 or smaller round.
Then think about fancy tefzel wire or something cheap. Don't think it would get all that hot but never checked.

So I need to work out how many pins I will actually use. CAN H & L for sure. Probably not rs232. Not sure what I'd use a digital out or in for atm. That leaves maybe vss for a traction control system at some stage later and possibly ethanol although I'm new to Hondata and don't know what it does with that info (swaps maps?). So maybe find the smallest round 5 pin locking connector I can. Hmmm

[ukjaunt]

ah woops
http://www.hondata.com/help/kmanager/in ... wiring.htm
rtfm

and now wonder if I should do analog connector at the same time, uurgh.

[scibo]

Although I only ran twisted pair CAN wiring, theres a small opening near the COMMS port.

[ukjaunt]

Although I only ran twisted pair CAN wiring, theres a small opening near the COMMS port.

Ah nice, thx for images.
And deutsch as well
Maybe that is the go and I don't get greedy wanting the other pins on the digital side. Saves me pulling out the PCB to drill the case out.
And your image shows there might be room for a couple of analog pins through there as well. Might just use some heatshrink and a cable tie so it doesn't rub.

[ukjaunt]

Although I only ran twisted pair CAN wiring, theres a small opening near the COMMS port.

Also did you have to remove any PCB to feed the cable underneath?

[scibo]

No I did not.

I just fed the cable under neath the PCB and out through the opening.