GPS Power supply
 

From another thread on this forum a power socket for a GPS was located on the wiring look behind the speedo. I asked Yamamha if they had the connector for this and they said this was the power supply for the ECU diagnostics and should not be used. To quote the Yamaha mechanic.

"Plugging into the spare lead at the speedo is definitely NOT a good idea. The power supply for the speedo is shared with the ECU - there is some sort of power link between the two, and therefore if you overload the circuit it may cause the ECU to shut down. They use this circuit for diagnostics for this very purpose!Beneath the seat should be a point for an alarm which is powered off the ignition switch and is the better way to go."

Any comments

This is a ba*tard, because I've just cut down my new GPS power cable...

(mind you, it seems to work fine using the socket behind the dash panel x)

xxx

Anyone know which connection to use (the one under the seat)?
I had a lookaround but couldn't find a obvious spot.

The manual (big word) is not very helpfull.
I already blew a fuse trying to get my gps to work with power from the bike...

thanks,

Olaf

I am working on the same issue too. When I asked my dealer to install the heated grips, I was surprised that they never connected the power directly to the battery, but instead they tapped the wires that are connected to one of the auxiliary lights. In my case, it's the left auxiliary light connection they used. These wires are located under the black plastic cover under the instruments. The plugs are in white color on both sides. I think they are parking lights which only turn on when the ignition key is turned on but the engine is not started. I tried to post the pictures, but I am having problems with the technicalities of this forum. Picture this nonetheless, a blue and a black wire go into this small white plug that connects to an auxiliary light. The dealer simply divert the blue wire into two 'red' wires, and the black wire is split into two black wires. So the extra 'red' and black wires are used as a power source for the heated grips. Of course, they keep the fuses that come along with the heated grips. So in theory, I don't see why I cannot use the right auxiliary light connection as the power source for the GPS. Having said that, I feel safer by just connecting the power directly onto the battery, I just have to make sure that whatever socket I get will have a fuse and long enough wires, because the fuse will protect from power surge and the long wires to go a long way under the tank (if I can fit through them without removing the tank) to the handlebar.

havent got a tenere so dont know what wires its got where but ive got the XT660R and added many electrical extras. There are a few places that you can tap/wire into like the horn, front lights, brake lights, (on the XTR) there are 2 connectors under the seat one for an alarm the other for an PC111 both have power when the ingination is switched on.

Where ever you connect into make sure to place a fuse inline with wire so as not to damage your GPS or any other item your using the bikes power for.

Hope this helps

Found it!
 

Just spent all afternoon rewiring mine, and I have the answer...

When you lift the seat there are various electrical gubbins (technical term x) held to the rear inner mudguard with rubber loops.

If you remove the two square shaped ones, you can see underneath the ECU/CDI unit (the rectangular one with loads of wires) there are a couple of connectors on the loom.

One is a white twin pin plug with a cap/opposite connector over it, however, this is a permanent live (ie not switched with the ignition).

The one you want is the opaque coloured plastic four pin connector (that doesn't have a cover/cap on it.

One of these terminals is live when you switch the ignition on (if you hold the plug with the plastic spring clip to your right, it is the bottom right hand pin. I used the one above it (ie. top right hand pin when the spring clip is to your right) as the earth.

It's a bit of a wiggle feeding the GPS cable through under the tank, but doable with patience.

All works fine now - power is there with ignition on, and off with ignition off.

xxx

ps. I'll try and post a picture or two later this evening.

Damn and blast, I've just spent the afternoon connecting up my GPS to the socket behind the dash cover and cut the GPS wire down as it was far too long! It does work though, fortunately I have a spare GPS wire so I will find the other power supply underneath the seat.
:smilies0979:

Aha thats what thats for, I spotted the connection under the seat the other day and wondered what it did. After I'd checked that all my electrics still worked I realised it wasnt a loose connection.

Just out of interest what wrong with wirring direct to the battery ?

I have a Tom Tom and if you connect straight to the battery the terminals will be live all the time in the base unit. As I have currently connected it all together, when I switch the ignition on the GPS will start up by itself and similarly switch off when the ignition is switched off. Live terminals tend to corrode between themselves and the pins on the Tom Tom are very close together and I would not want them live all the time. I will rewire before I go to Peterborough on Wednedsday, but the system currently works, shame though I don't want to fry the system!:021:

Excellent question. And why the owner's manual doesn't point out those 'benefits'. Another question is why haven't they come up with a maintenance manual yet with the whole electric diagram.

To be honest a GPS draws so little current, I doubt it would fry the electrics if you left it connected to the socket behind the dash? - but as we've had it from the horses mouth that it's best not to use it, I guess there will now be an upsurge in GPS power cable sales as we've cut all ours down!

Also, I wonder if the power socket behind the dash is used each time the bike is serviced (do they plug in the diagnostics each time?), which would be a hassle if you'd spent ages heat shrinking your GPS cable and connectors to it like I did...

So, thank's again for the heads-up Scottnet - this is the joy of Forums I guess?!

xxx

btw. I had my GPS wired directly to the battery on my XRR, and since the cable terminals were exposed when you disconnected the unit (Gamin 2610), you had to make sure to fit the little protector cap or else risk shorting the GPS fuse if the connector touched the frame etc. So wired via the ignition circuit makes sense...

Yeah what is even worse is that I couldn't find a female connector to fit the Yamaha connector so cut it off and replaced it with another of a slightly different size! That will confuse them if they try to connect to it!
What a mess!
:smilies0979:

I've found that if you use the pins from the waterproof style connectors (that is 1.5mm spade type) then they fit straight into the block connectors on the Yamaha loom, you can then just heat shrink everything to make it nice and secure...

I suggest you do this with the block connector under the seat as it seems to have 4 wires, even though you only need to use the two I described above...

Are you able to reinstate the original connector behind the dash? It might be a good idea if the dealer ever needs to check the system etc.

xxx

I'll have to try and find it now as I did the job at a mates garage and we may have thrown it away as I clipped it very close!
PS Just checked out the MM site and that's my bike in their pics! It's famous!
:wav:

Ah yes, you're the one with all the toys aren't you...!

How do you find the taller screen? I've noticed I get a lot of wind noise over 60mph when wearing my Tour-x - I'm going to try it with my Astro R tomorrow, but to be honest would want to use the Tour-x when traveling so will probably get the taller screen if it works...

In fact I'm down in Sussex this week, might pop in and see the guys at MM...

xxx

Warning!
 

Further to my info below, I took the bike out for a ride this morning and there seems to be an intermittent power problem (either than or a dodgy Garmin 2610...) - possibly the earth? maybe it's not the right pin to use? (although it works) - I need to investigate further... I wish Yamaha would provide a bloody wiring diagram in the handbook... grrrrrrrr...

Will update asap.

Jenny x

What Yamaha UK say...
 

Right, I have a definitive answer from a tech chap at Yamaha UK...

He doesn't recommend using any of the block connectors to hook up your GPS power cable - the four pin block terminal under the seat is for the (optional) alarm and connects to the immobiliser circuit - and although I've found it offers switched power, he couldn't guarentee it would work properly or not booger something else up...

So, if you want the GPS swtiched on/off with the ignition, since there are no dedicated switched terminals available, he suggests taking a live feed from the brake light circuit (this is easy to access under the seat) on the loom side, and earth direct to the battery.

Sounds fair enough to me... back to the garage I go (again!)

xxx

(ps. Obviously if you want a permanent live feed, you can simply take it directly from the battery, or the Optimate connector on the left side frame rail).

The problem with wiring straight to the battery is the simple thing of if you forget to take your GPS off, it means your GPS will still be charging. If left for too long then your bikes battery might be flat/dead, which means either more money for a new battery or alot of puffing and panting trying to get it bump started.

Well there seems to be conflicting recommendations from all of these 'experts'! I called my 'men' at Webbs this morning and they too say that I should not take power from the socket behind the cover underneath the lights but say that it will be fine if that supply which is activated by the ignition activates a relay! So I have got a 40amp relay which will power my heated jacket and the GPS, should fit under the seat. This is of course wired directly to the battery but will not be 'live' until the ignition is switched on. Anyhow I'm gonna give it a go and see how it gets on. Will keep you posted. Cheers SteveD:003:
PS The socket that I refer to is not for diagnostic purposes, that one by all accounts is underneath the seat.

OK, so I bottled it! I have put a 40 amp relay in the system. This is now activated by the BACK LIGHT circuit, which is obviously activated by the ignition switch. This relay now gives me the power for my heated jacket and the GPS. I also have a connector that I made so that I can charge my mobile from the heated jacket harness. The relay will also be suitable to power heated grips when I fit them.
I will be going down to Peterborough tomorrow for the photo shoot with MCN (confirmed this evening) so I will report back tomorrow evening as to how things have worked. Cheers SteveD
PS Paul (MM) has the crash bars to fit, a new hugger and a cover for the sidestand switch, possibly some other bits, will get pics.
:mbounce:

Just for anyone still trying to connect something to the opaque connector under the seat (post JMO), I followed JOM's discription (lower right connector for plus and above one for earth) and I have no problem...

Very strange. What where the problems you had JMO?

Olaf

Hi Olaf - I found my GPS would cut out intermittently, and at one point wouldn't turn itself back on? I presumed it was an earthing problem - any one of the three remaining wires seem to make the circuit together with the one that is positive when ignition is on, but perhaps they are not all 'earth' wires all the time? I don't think it was simply a loose connection, as I'd used 1.5mm blade pins that sit snugly in the connector block, and heat shrink over the block too...

Based on this, and what the tech dept at Yamaha UK said (above), I have now used a waterproof mini blade fuse holder and cut into the loom using the brown wire of the rear brake light switch (soldered and heat-shrink, proper job x), and earthed the GPS direct to the battery... it's all neat and under the seat, and the fuses common with the rest of the bike.

And it works!

xxx

Aux Circuit
 

I took a different approach.

Run a cable from the brake light switch on the brake lever (one is live with the ignition, and you can tap into it with a piggy back spade connector),

Run a live (fused) cable from the batery, and -ve cable,

In the nearside (left as you sit on the bike) fairing, where the indicator attaches, there is space inside to put some cables and a relay. You have to remove it from the bike, then remove the indicator and it comes appart

Install a relay, in the gap, and you've got a Aux circuit, take one feed up to the GPS (mounted on the GPS mounting bar, with a Touratech GPS locking mont) and there you go!

Also from the Aux circuit, I installed a BMW Power socket - It's crap! couple of days rain and it's all crappy inside, needs replaced! You could just about fit a 12v cigarette socket if you were careful.

SO, I managed to run - GPS (Zumo550), EXO2 Heated Gloves, Kiess Heated jacket, phone charger, Laptop charger and Camcorder charger from it without any obvious problems. This was only a day or so though, the heated stuff wasn't used that much.

Just when we thought we had heard the last of this new information has come to light.

I have it on good authority that the connector behind the headlight is in fact an optional 12 V supply. It is connected into the parking light circuit that is on a 10 Amp fuse.

It was first reported from various Yamaha tech that this was a FI diagnostic connector but that is a 3 pin connector under the seat.

So to confirm this I tried this, I took out the parking light fuse ( fuse no1) and sure enough no voltage on this connector, also if you turn on your parking lights this connector comes on.

So I'm fairly sure that this can be used as a generic 12V supply.

There also should be another in line fuse between this and the 10 Amp fuse on the parking light circuit but I am yet to find it. Please let us know if you find this.

hi im getting my tenere next week the first job is the heated grips is the sidelamp /aux sufficient [with added fuse] or is a relay nesessary in that circuit?

many thanks

Heated grips will actually work from the Brake light feed, and without needing to change any fuses, just a little spade piggy-back connector will do.

If you are considering putting other stuff on in the future (12v power socket, GPS, extra lights), an auxilary circuit is the best way forward. It's not difficult and the gubbins will fit in the gap in the grey side panels.

I would not tap into anything else i would go direct into the connector I described , and if you want to be extra safe put an in line fuse into the circuit.

I fitted winding roads heated grips they work great

just placed my order with them had considered hot grips, then thought how would they work with bar ends so symtecs are the way forward as im getting the ktm hand gaurds jmo recommended. i've got a set of orange ones on my exc they seem big enough will have to order black ones now doh

thanks stoic

I missed this when you posed originally, but thank goodness for a definitive answer at last! (Although I'm concerned that a number of Yamaha technicians don't know what they're talking about?!)

At least there is an answer now! (and it makes perfect sense for Yamaha to have included a switched supply behind the headlight, as the bar above is meant for a GPS...)

xxx

Is this the small Black 2 pin plug behind the headlight?

Yes , see pictures in this thread http://www.xt660.com/showthread.php?...k+brown&page=2

Seems to be, although it is part of the loom to the instruments, rather than the side lights - maybe they join up further down? (they must if the fuse scottnet refers to cuts the supply?) - dontcha love electrics?!

xxx

power supply
 

Excuse me for having a chuckle to myself, but this thread seems to have come full-circle! :043:It's good for me though as I've just got my GPS, and when (if?) the bracket arrives from Touratech, I'll know exactly where to "stick it".....!

Aye, it's like bloody Chinese whispers isn't it?!

xxx

Is this the connector?

http://img237.imageshack.us/img237/3050/dscn2464xr3.jpg

Yes... it's interesting that originally a dealer (technician) said it was used to hook up diagnostics? - perhaps he thought this as there is a dedicated connector?

Anyway, I hooked my GPS up to it initially and it worked fine, plus, as Scottnet has said, it seems to be fused on the sidelight circuit, so you ought to be good to go... although ideally if you can get the proper opposite connector to fit, if a dealer ever did have to disconnect it and hook something else to it, it would be simple swap over?

xxx

Anyone got an idea where to find one of these? Been asking around "everywhere". No big deal if I have to cut it off and replace with something else but it would feel better having the original.

Like I say, it's probably best not to cut it off, just incase it is required for service etc.

You could try these people (certainly in the UK, I imagine they would ship too)

http://www.vehicle-wiring-products.e...e/homepage.php

Or do what I did originally and use a couple of 1.5mm spade connectors (the kind you get in the waterproof plug connectors) which will sit snugly in the OE Yamaha connector - wrap the connector in heat shrink and it's as tight as a tight thing, that has just been tightened, and left it's wallet in Scotland...

xxx

Just a thought,

this connector, if indeed it is to supply the GPS, and clearly it has some purpose, then, given that it is there and someone has taken the time to fit an end tail to it and include it in the harness. You would think that somewhere there is a part that connects into it? and it should be on the Yamaha spares list ?? If that's the case, then the part should identify what it's for ???

When you take the Tenere in to the dealer for a service, as your friendly mechanic for a connector - they are fairly standard on most yamaha looms.

That's what I did.