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Turn signal light keeps on blowing every time a replace it 2019 Yamaha NMAX 155

Why is my turn signal light keep on blowing every time a replace it? My bike is a Yamaha nmax155 2019mdl @

Posted by Aron Dela Paz on

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1 Answer

Gregg Mahin

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  • Yamaha Master
  • 61,842 Answers

Hi, Aron before testing any electrical component in the Turn Signal Light Circuit it is "IMPERATIVE" that you have a fully charged battery of 12.5 volts or more and be able to pass a proper "LOAD" test because your battery may have 12.5 volts or more but little or zero amps causing the battery to be faulty and must be replaced, "AGM" batteries fall into this category more so than lead-acid types, also before diagnosing any turn signal/running light/parking light issue make sure the bulb is good and the light fuse has continuity with a test light. If you have replaced your OEM lights with one or all LED lights you are going to need a load equalizer.
If no turn signals are working the cause could be a faulty turn signal module/flasher or the connector going to it, look for corroded, loose, or broken pins/sockets. Contact spray cleaner is great for removing corrosion.
If your turn signal comes on but takes several seconds before it starts flashing you may have dirty contacts in the turn signal switch/button, the switch needs to be opened up and cleaned also the flasher may be starting to fail. It should be noted that cold weather will only exacerbate the situation especially when temperatures drop down below freezing and the location of the component, turn signal switches on the handlebar are at the mercy of the oncoming freezing 70 mph wind and makes it hard for the contacts to do their job covered in frozen grease/grime
If all four turn signals flash at the same time like hazard lights even though you only pressed one turn signal button then you have a LED light in the circuit and need a load equalizer that can be purchased from any motorcycle parts supplier.
If your speedometer does not function properly it will have to be fixed first because your turn signal module gets the data from the speedometer for normal turn signal function.
If your front turn signals don't work use a test light to check for power and ground at the bulb socket, then start backtracking the wiring through every wire connector to the turn signal switch/button and check for continuity, go all the way back to the fuse if necessary to find the cause of the malfunction.
If your rear turn signals don't work check your rear fender wiring harness connector first, look for, corroded, broken, loose pins/sockets, power, and a good ground, the harness connector is usually located under the seat on the front of the rear fender then keep tracing the wiring look for obvious harness damage caused by the rear tire.
If you still can't find the malfunction backtrack from the rear fender wiring harness connector.
If one side does not work you could have a faulty turn signal switch or module check for continuity.
For more information about your issue and valuable "FREE" downloads that you will need for viewing or printing please click on the blue links below. Good luck and have a wonderful day.
https://www.motorcyclecruiser.com/basic-electronic-troubleshooting/
https://www.motorcyclenews.com/new-rider/choosing-kit/2011/august/aug3011-why-do-bulbs-keep-blowing-/
http://www.family-motorsports.net/GY6-50cc-150cc.pdf
https://www.partsfish.com/page/oem-parts-for-yamaha
http://www.yamaha-motor.com.my/wp-content/uploads/2019/01/BC1-Nmax-EN.pdf

Posted on Nov 01, 2019

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5 Related Answers

Anonymous

  • 59 Answers

SOURCE: no brake lights blows fuse every time

there is most likely a short in the wires have you put a tow package on it if so did you splice in to the lines check all wires and see if they are burnt any were most likely short

Posted on Jan 05, 2009

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buffalonyman

buffalonyman

  • 1865 Answers

SOURCE: The 7.5A fuse to the turn signal\backup light keeps blowing.

The only way to resolve this problem is to use a meter to find out if the problem is an over-current fault or a short-circuit fault. WHatever the case may be, the wiring and lamp assembly will have to be inspected for damage

Posted on Sep 20, 2009

SOURCE: my 2007 yamaha v star 650 keeps blowing the fuse

There seem to a 'live' wire (in the turn signal, brake light or horn circuit) touching the frame of the bike and thus the fuse blowing.
You will have to trace out the short-circuit.
You can start wth removing the connections to the turn signals thn fit the fuse and see if it still blows ....like wise remove the wire to the brake light and thn check if the fuse blows, same to the horn.
In short ..you can remove all the wires connections to these and thn fit the fuse and refit the wiring connections one by one ,where the fuse will blow after connecting the wire to say brake light thn the problem is at the brake light wiring ....likewise to the others ...onces you identify the circuit tht has the problem thn it will be easy to trace it and rectify it.
Hope this helps!

Posted on Oct 08, 2009

Fahr Quad

  • 774 Answers

SOURCE: 2006 f150 keeps blowing turn signal fuse

It sounds like the fuse is doing what it is supposed to do, and burning out when there is a short circuit. Check the wiring from the fuse block back to the lights and pay special attention to the trailer connection.

Posted on Oct 09, 2009

bdrew1340

Brett Drew

  • 448 Answers

SOURCE: Keep blowing fuse for running lights on trunk, fender marker lights, tail light and front turn signal running lights. can't find bare wire anywhere.

Not necessarily a bare wire. Could just be a slight broken spot in the insulation. Check the wiring inside the rear fender. Sometimes the tire gets into the wiring harness and chews things up a bit. This usually happens on lowered bikes.

Posted on Jun 24, 2012

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2 Answers

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There seem to a 'live' wire (in the turn signal, brake light or horn circuit) touching the frame of the bike and thus the fuse blowing.
You will have to trace out the short-circuit.
You can start wth removing the connections to the turn signals thn fit the fuse and see if it still blows ....like wise remove the wire to the brake light and thn check if the fuse blows, same to the horn.
In short ..you can remove all the wires connections to these and thn fit the fuse and refit the wiring connections one by one ,where the fuse will blow after connecting the wire to say brake light thn the problem is at the brake light wiring ....likewise to the others ...onces you identify the circuit tht has the problem thn it will be easy to trace it and rectify it.
Hope this helps!

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