Showing JY_1.3.2 Error

Hi guys, I've been riding my KTM RC 390 from 2 years now.. yesterday I went to start my bike and it showed JY_1.3.2 ERROR on the speedometer .. the bike won't start .. has anybody else faced this issue before ?? Plz help..
 

Maddog Reynolds

New Member
Hi guys, I've been riding my KTM RC 390 from 2 years now.. yesterday I went to start my bike and it showed JY_1.3.2 ERROR on the speedometer .. the bike won't start .. has anybody else faced this issue before ?? Plz help..

I Googled it and saw someone else has this error code with battery problems. Check battery terminals are clean and tightened normally. Will it bump start? Down a hill in 4th or 5th gear if you can :) Also how old is the battery? And has it ever been run flat?
 

robenever

New Member
I got the same deal. My third from the top fuse blew out. Why? Idk. But I also changed out the spark plug. I'm going to the dealer this Friday to actually get it looked at


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Sai Yashwanth

New Member
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Hi, I have a 2017 RC390. I was on a trip recently, the engine was warm and I got "low battery" suddenly, then got "JY_1.2.3". I thought battery died, so I went to a shop and swapped the battery. The bike didn't start even with the new battery. Then got the old battery back on the bike, then tried bump starting it at 60kmph, 5th gear and boom! the bike started and I didn't turn off the engine untill I got home. Then I tried turning off and starting it, it started. Surprisingly, It even cold started the next morning. The dealer here doesn't seem to be solving my problem. I don't know the reason behind this problem and now I'm afraid of taking my bike on a long trip. If any of you guys know the reason why this could have happened, please reply.
 

Rye Mik

New Member
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Hi, I have a 2017 RC390. I was on a trip recently, the engine was warm and I got "low battery" suddenly, then got "JY_1.2.3". I thought battery died, so I went to a shop and swapped the battery. The bike didn't start even with the new battery. Then got the old battery back on the bike, then tried bump starting it at 60kmph, 5th gear and boom! the bike started and I didn't turn off the engine untill I got home. Then I tried turning off and starting it, it started. Surprisingly, It even cold started the next morning. The dealer here doesn't seem to be solving my problem. I don't know the reason behind this problem and now I'm afraid of taking my bike on a long trip. If any of you guys know the reason why this could have happened, please reply.
2015 KTM RC390, Im in the same boat as you bud. If i figure it out ill let you know.
 

nilnik

New Member
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Hi, I have a 2017 RC390. I was on a trip recently, the engine was warm and I got "low battery" suddenly, then got "JY_1.2.3". I thought battery died, so I went to a shop and swapped the battery. The bike didn't start even with the new battery. Then got the old battery back on the bike, then tried bump starting it at 60kmph, 5th gear and boom! the bike started and I didn't turn off the engine until I got home. Then I tried turning off and starting it, it started. Surprisingly, It even cold started the next morning. The dealer here doesn't seem to be solving my problem. I don't know the reason behind this problem and now I'm afraid of taking my bike on a long trip. If any of you guys know the reason why this could have happened, please reply.
How old is battery? Normally this error starts coming when battery is about to die. I observed this with my 2015 RC.
Get battery checked an replaced if needed
 

Rye Mik

New Member
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How old is battery? Normally this error starts coming when battery is about to die. I observed this with my 2015 RC.
Get battery checked an replaced if needed
Hey I'm in the same boat as this guy I think. My bike gave me the JY 1.3.2 code one day and didn't start after charging it to full. So I replaced the battery with a new one, charged it full, fastened it down, and the bike started right up. 3 weeks, 40-50 miles later, I'm getting the same error. Its cold where I am but not THAT cold. I'm thinking its the Stator coil maybe? What do you think?
The only other problem I've had with the bike is it stalling going from 3 to 2 gear. That's happened twice, but it hasn't happened in about 1000 miles. Don't know if they are related. I've had the bike for 4 years now. No modifications completely stock 2015 KTM RC390. Any reply would be much appreciated.
 

Rye Mik

New Member
Country flag
I got the same deal. My third from the top fuse blew out. Why? Idk. But I also changed out the spark plug. I'm going to the dealer this Friday to actually get it looked at


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Any verdict on what your problem was?
 

KTMasean

Member
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Hey I'm in the same boat as this guy I think. My bike gave me the JY 1.3.2 code one day and didn't start after charging it to full. So I replaced the battery with a new one, charged it full, fastened it down, and the bike started right up. 3 weeks, 40-50 miles later, I'm getting the same error. Its cold where I am but not THAT cold. I'm thinking its the Stator coil maybe? What do you think?
The only other problem I've had with the bike is it stalling going from 3 to 2 gear. That's happened twice, but it hasn't happened in about 1000 miles. Don't know if they are related. I've had the bike for 4 years now. No modifications completely stock 2015 KTM RC390. Any reply would be much appreciated.
Then it most likely is not charging.
Check the stator and/or rectifier.
 
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