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

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"Where we're going, we don't need roads..."

JennyDakar.com

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.

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.

Attached Images

diag_conn.JPG (58.1 KB, 343 views)

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:




Nick.