Might this be of help
http://www.installdr.com/harnesses/M...shi-Wiring.pdf
Or this
http://www.the12volt.com/installbay/....asp?tid=57689
I can't view it properly on my phone
Might this be of help
http://www.installdr.com/harnesses/M...shi-Wiring.pdf
Or this
http://www.the12volt.com/installbay/....asp?tid=57689
I can't view it properly on my phone
Last edited by Davezj; 13-11-2015 at 02:36 PM.
Bye for Now!
I have a feeling Mitsubishi just took something off the shelf and branded it. The volumes were too low to justify developing it in house. The Pioneer "P-Bus" has remarkably similar sounding line names to the GTO picture Jason posted:
Screenshot from 2015-11-13 15:25:41.png
http://en.calameo.com/read/0012203441b1510fb9c89
Would be good to open up the amp or headunit and check if there are any Pioneer markings inside. Or at least to see if the main CPU marking could be read. That could help point things in the right direction.
Last edited by Grid; 13-11-2015 at 04:39 PM.
The more you know, the faster you can go. And I still don't know enough.
When i found my amp under the floor in the boot, I ended up throwing it away after trying to give it away to anyone who wanted it.
Getting rid of it enabled me to fit a left hand side storage box. And more under floor storage is always nice.
I still have the 13 pin din cable and the output cable that was connected to the amp in the car.
If you trash yours trying to get it to work , you can have it if you want it.
Just out of interest did the uk spec cars come with the same amp option?
The reason I ask is because there is a full uk spec galant wiring schematic in the library so it would have the audio wiring in there as well.
Worth a look.
Search on username davcom1 and wiring. The original hosting site is long gone but I believe one of the other members is hosting it for the site now.
It is a 95mb PDF so it is not easy to upload to the library.
here is one place
http://www.clubvr4.com/forum/showthr...l=1#post744608
here is another place
http://www.clubvr4.com/forum/showthr...l=1#post758511
Last edited by Davezj; 13-11-2015 at 06:26 PM.
@Grid the pin layout is similar but slightly off. I'll pull it apart tomorrow.
@Davezj I checked out the electrical diagram and sadly it doesn't cover the subwoofer, CD player or amp but good thinking regardless
Just to add a tiny bit more news, I've got a 13-pin DIN extension cable that I'm gonna chop and fit a breakout board to be able to access the pins easier. Sadly the logic analyser didn't arrive in time, that'll be next week.
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More digging
http://www.mictronics.de/projects/cdc-protocols/
k7pioneer.jpg
In fact people have made hard-drive mp3 based CD-changer emulators
http://vitat.spb.ru/index.php/cat,21.html
Thanks @Grid, will update tomorrow with my findings
Okay didn't get to take the head unit apart today (weather not great) but I did manage to find time to build this;
amp-patch-lead-1.jpg amp-patch-lead-2.jpg amp-patch-lead-3.jpg
That's a 13-pin DIN extension cable with a break-out / interruption jumper set and a line-in socket
Nice systematic approach, build the tools first, do research
I'm way too chaotic to plan ahead like that
CAN-BUS protocol explained
https://en.wikipedia.org/wiki/CAN_bus
I don't think CAN BUS is relevant here, CAN doesn't have a clock line, this seemingly does and pre-dates CAN implementations in cars by about 10 years.
I've also got a lot of experience with CAN (specifically GMLAN, see below links) so admittedly it was one of my first suspicions (great minds think alike)
GMLAN Library for MBED
GMLAN Bible
Fair enough, I did read the can bus description and I thought it didn't sit right with what you described as seeing, but it was only when you said that you data was clocked it clicked.
Yes I have looked at screen shots you uploaded but it still didn't click until now.
Doh!
Are you reading the bits round the correct way, it seems as you are read 0v as logic 1 and 5v as logic 0, from the screen shots in update 3. Is that correct for this application.
Heh, I don't know I just based it on the fact the clock line goes low to signal a read.
Inverted they would read as follows (chars aren't standard ASCII);
Seq / Binary / Hex
- 10010000 = 0x90
- 00011010 = 0x1A
- 10110111 = 0xB7
- 10000010 = 0x82
- 11110000 = 0x30
Logic analyser is here, well worth a fiver
Logic-software.png
Software from Saleae has a built-in protocol inspector too, may help decode it
ok, that make is always an option, what type of probe are you using to connect to the cale is it home made or a proper scope probe. just woundering if you have pos and neg swapped on the probe.
as having a high signal that goes low to signify a clock not something i have come across as the normal way round. but i have not played with this sort of stuff for years so i am just thinking out loud, and not having the stuff infront of me is a bit of a disadvantage. lol.
I still maintain it's excellent value, works perfectly with the software, although I haven't processed them yet I've grabbed some samples of various things here;
amp protocol samples
The channels were as follows;
- Channel 0 = Pin 9
- Channel 1 = Pin 10
- Channel 2 = Pin 11
- Channel 3 = Pin 13
You'll need the free Saleae Logic program from above to open the files
Ps. Yes the probes were the correct polarity Dave, the probes are genuine Tek ones with a clear ground crocodile clip on each one