XT660Z diagnostic mode
 

Hi all:

Anyone knows if there is some other way to have a diagnostic mode w/o the Yamaha 90890-03182 diagnostic tool?

It is unbelievable that a bike designed to travel all over the world needs such a tool, but the less adventure cousin XT660E has the diag software inside the ECU.

have fun,

j.

haven't tried it on the XTZ yet but if it is similar to the TDM and FZ-series DIAG mode is reached by:

press mode and reset buttons together, turn the key to "on" position while keeping the buttons pressed for about 5 seconds.

That tip does not work :) I tried it already, thanks anyway.

There's no in-build diag mode.

However, I heard that the diag tool is not expensive, about �25 I think.

If theres a few people in the same area it might be a good investment?




Nick.

Thanks for the ibfo, but diag tool is over 150euro+VAT, not cheap :(

have fun,

j.

This is very interesting... I'd heard about this tool, and that it plugs in under the seat (the various connectors there - I believe one/some are for the alarm, but presumably the diagnostic doofer connects to one of them?)

However, when I spoke to my local dealer today, he said the diagnostics is done via the clocks "like other Yamahas"... and the the connectors under the seat are only for the alarm?

Now I know the diagnostics/adjustments can be made via the clocks on the XTR/X, but thought the XTZ was different?

Makes me think they didn't run a diagnostic test at the service which is a bit worrying... like what else didn't they do?

Any info?

xxx

It's defo a separate tool. The service manual talks about it.

It's mainly for the FI system. The ECU does some diagnosis, but you need the tool to display the info. You can then use the tool to run diags on the problem area.

Tell your stealer to RTFM - Page 7-23. It connects to the 3-pin plug under the seat.


Nick.

According to the service manual, tehre should be a 3 pin conn. for the diag tool, but I have not find it on my bike.
http://www.xt660.com/attachment.php?...1&d=1245879486
My former FZ6S (Fazer) had a quite funny and complicated password in order to enter service mode, but it was at the clocks.

Both the 4 pin and 2 pin connector are for the alarm (item 71 at the electric diagram)

Not all stealerships are that way, but they are know to left some loose screws too ;) :)

Looks like there is a single wire data bus between the ECU the diag tool conn (if it actually exists) and the "Inmobilizer Unit", if you look at the electric diagram there is a wire than goes only to those 3 conns., maybe it is a sort of "siingle wired" CAN bus.

Any info from any Yamaha tech looking at this post is wellcome.

have fun,

j.

Hi Nick:

Could you check your bike if that plug actually exists? I haven't found it on mine. I will remove further items (batt. and so) tomorrow trying to find it, but I don't think my bike has such conn.

have fun,

j.

I assume this is it? It was underneath the large relay:

http://i295.photobucket.com/albums/m...9/DiagConn.jpg


Nick.

Thanks for confirming that Nick...

Jiauka - yes, the plug is there (along with the other two for the alarm), but mine were buried right at the bottom under the loom and relays as Nick says...

There is enough length in the loom to reposition them for easier access... although I did this myself after the service, looks like they weren't touched before.

Grrr...

I'll get back onto the dealer tomorrow regarding that tool part number - bet they don't even have one yet...

xxx

Thanks a lot Nick & JMo, I will find the plug tomorrow.

BTW, I have tested the FZ6 method to access the diag mode w/o success, on the latest FZ6 you need to disconnect the fuel pump in order to access the diag mode.

On the ten. there are a few harness connector just behind the rear break reservoir, the 2 pins one is the fuel pump one.

In short the modern FZ method didn't work for me :(, but you are wellcome to try it.

have fun,

j.

jiauka, by the way your status as supporter has already been activated, I know you asked Kev about this but I upgraded you immediately as you paid and I have also sent you a PM with instructions, in case you haven't received it I can pass it to you again.

But yes check out the row of yellow helmets you have by your username, you're in the club! and thanks

Thanks Captmoto for your fast reply.

142.50 Euros for the Yamaha diagnostic tool - http://www.cmsnl.com/products/fi-dis...ol_9089003182/

Hi:

It looks like the Z uses a K-LINE bus for the diagnostics (thanks Kev!!!), I will make a simple K-Line to SERIAL interface and snipper, then I will try to borrow an original diag tool.

have fun,

j.

Just to get the facts right, this is what I said in the PM to you earlier.

I am sure the Yamaha scan tool could be reproduce for a fraction of the quoted price.

Most of the Yamaha's use a single K line, a analog signal not Can Bus to the scan tool, if it was a Can Bus signal there should be two data wires, unless they are using Lin bus which runs on a single wire. If the XTZ has a K line like most Yamaha's it will very easy to reproduce the scan tool. I would need a XTZ & scan tool to see the data protocol.

As I said I am sure we could knock up a cheaper version scan tool.

What I can't understand is why did Yamaha not included this in the Tenere's same as the other XT have? Same engine! ?? Makes sense?

Out of interest, I spoke to Yamaha UK's aftersales bods today regarding the diagnostic tool (seems my 'local' dealer doesn't have one, and isn't prepared to buy one, so I have to go to another dealer to run a diagnostic check?!)

Anyway, turns out they are �80 retail, less to dealers... I'm tempted to get myself one for the Heroes-Legend this year, not that I hope to need it...

That said, I took the Ten' out for a run yesterday and it felt distinctly 'wooly' and rough - it was perfect all last week (600 miles to Newcastle and back) so I'm wondering what it is? - could just be crappy fuel? If it was a carbed bike I'd say there was a problem with the mixture... which is why I want to run a diagnostic test and see if any of the EFi sensors are malfunctioning...

xxx

i had this poor running motor feeling and realised i put 97 oct super unleaded in.
found that it doesnt like it.

next tank 95 and running sweet as a nut again.
all the best in the dakar trip and will be on the look out for you.

Quick update, I have found the diag conn nearly buried under the loom and relays.

I have place and old analog oscope at the K-line??. I'm not familiar wiht K or Lin buses, but it goes from 0 to 12V, I have attached some pict. Maybe Kev can give some clue, anyway, I will grab a digital oscope tomorrow and I will make a long analog log.

I'm 99% confident that we/I will make a simple interface and software in order to run a full diag on the Z using a PC.

have fun,

j.

Interesting - I've not found that the case with mine, although I tend to run it on regular anyway (hell, I was running it on 87 or 92 in the US!)... I filled it up at the weekend (on my way to Horizons) and it seemed to be running fine there and all the way home on Sunday... yet next time I ride it it feels funky though - and still the same tank of fuel...

As far as I know, there is no fuel filter in the tank - but perhaps there is some cak floating around in there which is showing itself now the fuel level is lower (or has just dislodged something?) - for info, it's just gone onto reserve - although as we all know, that still means there is 6 litres in there!

Hence the diagnostic tool, just to eliminate any air sensor fault...

xxx

I can't make much out the graph.

Yup, I know is not very good. FYI signal is 12V peak2peak, idle is at 12v and shortest 0 level is 0.1ms long. It looks to me like an ordinary async serial signal.

I will try to grab the digital oscope and make a longer log and a simple interface to an RS232 port in order to log meaningful digital data.

have fun,

j.