No headlights... not the sub harness... ECU?!?!

Don in Lodi

Well-Known Member
Founding Member
2012 Site Supporter
2013 Site Supporter
2014 Site Supporter
Joined
Feb 1, 2011
Messages
5,230
Location
Lodi Kalifornia
Mine too. The dealership wouldn't do it without the whole bike, I had the headlight out anyway...
Zepfan, did the harness get done?
 

Zepfan

Inuvik to Darien. Dream to ride, ride for ADV.
2013 Site Supporter
Joined
Mar 7, 2013
Messages
173
Location
Valley Center, CA
No to harness.
I neglected to mention that being the starting point seeing that it's under warranty. ??
 

Zepfan

Inuvik to Darien. Dream to ride, ride for ADV.
2013 Site Supporter
Joined
Mar 7, 2013
Messages
173
Location
Valley Center, CA
The harness was replaced a few years ago with a valve adjustment. Didn't remember but dealer has on record.
 

Zepfan

Inuvik to Darien. Dream to ride, ride for ADV.
2013 Site Supporter
Joined
Mar 7, 2013
Messages
173
Location
Valley Center, CA
Turned out to be a simple bad connection in the harness connector (plug).
Light blue to dark blue was burnt and some what melted in plug. Un plugged and re inserted and lights came on!
I think these are to the relay.

Fixed the problem for now but why these connection points became compromised inside of the plug ( and burnt a little) is a mystery.
 

Checkswrecks

Ungenear to broked stuff
Staff member
Global Moderator
2011 Site Supporter
Joined
Mar 7, 2011
Messages
9,621
Location
Damascus, MD
Not really a mystery, hot pins are a result of either crimping or corrosion.
 

HoebSTer

New Member
Founding Member
2011 Site Supporter
2012 Site Supporter
Joined
Sep 29, 2010
Messages
2,883
Location
ISSAQUAH, WA USA
About Bricks old issue. Good job it was resolved with an ECU. I am working on a guys 2012 bike doing the same thing...both headlights went out. Replaced the relay, nothing. Have power at fuse and 2 points on relay. I hook to - bat terminal and touch the yellow side of relay and lights came on. I am thinking bad ground someplace like ECU after reading all this. Bike has almost 80k miles on it and the recall harness was done yrs ago. It would be interesting to swap ECU out w another bike to see.

Jeff
 

RonH

Well-Known Member
Founding Member
Joined
Sep 13, 2010
Messages
684
Location
Denver, CO
If it was me I would simply supply a ground, or whatever is necessary, to turn the headlights on all the time. Only negative I can see is headlights will be lit during cranking.
 

TenereTim13

Member
Joined
Oct 12, 2019
Messages
82
Location
Upstate NY
HeadLights just went out today on my 2013.Does anyone know were I can get a wiring diagram on line? Wish I had some idea what to do.Have a friend coming over to take a look.Calling Yamaha Monday to check for recalls.
 

eemsreno

Well-Known Member
Founding Member
2011 Site Supporter
2012 Site Supporter
2013 Site Supporter
2014 Site Supporter
Joined
Nov 25, 2010
Messages
2,789
Location
On your way to everywhere, , Iowa
Try hooking a jumper wire from the black wire at the bulb to the frame [run a jumper ground]
 

TenereTim13

Member
Joined
Oct 12, 2019
Messages
82
Location
Upstate NY
We took a bulb out and it looks like it's blown.Tested by putting a new bulb in showing no power to the bulb.Unable to locate headlight relay watching YouTube.
 

veets

Member
2011 Site Supporter
2012 Site Supporter
Joined
Dec 9, 2010
Messages
34
Location
York PA
FYI Bike must be running for the headlights to come on.
 

TenereTim13

Member
Joined
Oct 12, 2019
Messages
82
Location
Upstate NY
Got lucky 2 blown bulbs was my problem.Thanks for the help eemsreno & veets Have one more question. Took headlight assembly out unplugged it then repelugged bike won't start.Tested battery plenty of juice too start bike.Had to give it a lot of throttle to start.Seems fine idles and runs.Did just unplugging the headlight assembly cause this?
 

Brick

Member
2012 Site Supporter
2013 Site Supporter
Joined
Oct 5, 2011
Messages
945
Location
Western North Carolina, USA
Got lucky 2 blown bulbs was my problem.Thanks for the help eemsreno & veets Have one more question. Took headlight assembly out unplugged it then repelugged bike won't start.Tested battery plenty of juice too start bike.Had to give it a lot of throttle to start.Seems fine idles and runs.Did just unplugging the headlight assembly cause this?
If you turned the key on and off a few times trying to get the headlights working.... without having the kill switch in the off position each time you turned the key on the electric fuel pump tried to cram more fuel in.
You will need to wait a while then try the hard starting procedure.
Kill switch off
Turn the key on
Full throttle
Now hit the starter button.
It may crank a bit but should start. Do NOT twist the throttle during this process.

From now on always turn the kill switch off that way your now overly priming the injectors every time you turn the key on.

Brick


Sent from my iPhone using Tapatalk
 

TenereTim13

Member
Joined
Oct 12, 2019
Messages
82
Location
Upstate NY
Thanks Brick,
Hope I didn't hurt anything! Bikes seems to run fine .But will put this in my notes For future references
 
Top