What I thought would be an easy fix has me guessing now. Had a blinking light showing temp sensor defect. I replaced sensor and looked over plug and harness real well. I have read that Yamaha had a problem with this. Still showing light blinking. Everything is working as it should as far as radiators and cooling. Wires look good and plug looks good. What to do next. Thanks!
Cam/ Viper adict
New member
Was this blinking light happening while you were riding? or does it show up when you just start the machine while its cold? It may not be the Temp sensor. Do your hand warmers work? There are codes for the resistor being bad or warmers not working?
roudyroy1
Active member
is it just bilking rapidly, or is it like long long short or something that looks like a code?
It is eight blips. Blinks while riding. Looked it up and it refers to temp sensor. I need to know where else to look. I have gone down the cable about 6 inches, plug looks ok. Do I get a different plug from a partout sled? Any way to put a meter on it to see something? I hate this stuff, I rather be messing with skis or tracks.
Backwoods M Max
New member
I thought I had a temp sensor problem the end of last winter that ended up being an intermittent short in my grip heaters. I had taken off and reused my grips on some new bars (which was my mistake) and had torn the wire inside them. It was only intermittent, depended on how hard I was working the bars. I chased the temp sensor though since the owners manual only covered the temp sensor code, you have to find a yamaha tech manual to get the full codes....anyway. You can pull the wires back out of the harness body and check them for continuity and voltage. Check the black ground back to the chassis, make sure there is continuity there. Then with the sled running you can check the other wire for power to ground. If you unplug the sensor with the sled running and the pattern changes, it's a dead giveaway its not the sensor. I missed that the first time. When I ran the sled with the sensor unpulgged the computer flashed a new code for a problem with the temp sensor. The funny thing with my sled was that it was telling me it was a problem with the resistor for the thumb warmer, and ended up being the grip heaters. They tested an intermittent resistance when I tested them as a circuit for ohms after I took them off.
Backwoods M Max said:
thats good info right there, very good post for someone to utilize the information given, Nice job!