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Discussion Starter #1
Hi to all. On my 1078 312RR, my speedo stopped working, everything else in the dash works fine but my speedometer stays at "zero" and the tripometer also freezed. I took out the sensor at the sproket cover and run the test that the manual says and it turned out ok so the question is... what´s next?? wiring issue??
 

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Discussion Starter #4
Checked the plug behind the speedo Nicolas ?
Chacked on the plug, disconected it and connected it back but still no luck. This is pretty weird! the thing was working fine and one day it just stoped!
is there anything else I could try?
 

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Yes, go to the F4 312R Shop manual and get into the electrical diagram. Identify what is not working and follow the wiring diagram to identify the source of the issue.
 

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Patience is a virtue when tracing electrical issues. Be methodical and know exactly what is and is not working.
 

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Discussion Starter #8
Patience is a virtue when tracing electrical issues. Be methodical and know exactly what is and is not working.
right at the moment everything works but the speedometer, it reads ZERO all the time. I`m guessing my speed based on the rpm and gears...
First thing I did was taking the speed sensor off the sproket cover, tested it and came back ok... then I took appart the spedometer and cleaned it up with a dry cloth, replaced the bulbs behind the rpm tach (one had gone out) and cleaned the conectors behind the speedo and also the one at that connects the speed sensor at the sproket area. I put everything back together but speedo won`t work :thewife:
 

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Argh. Nico, if I have some time this weekend, I'll see what I can find.
 

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Discussion Starter #11
I still couldn´t find out what´s wrong with my speedometer/tripometer... any ideas silentservice703?
 

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This is a long shot but dissconnect the battery for a minute and re-connect,in other words re-boot the ECU,if it works I will tell you how I know.
 

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Hey Nico...I'll see what I can see over the weekend....I am at work right now, so I can't really look.
 

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Anything else not working on the dash?
 

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Discussion Starter #15
This is a long shot but dissconnect the battery for a minute and re-connect,in other words re-boot the ECU,if it works I will tell you how I know.
I rushed to the bike and disconected it but no luck. took the bike around the block and it still reads "0"
 

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Everything else works fine! it´s just the speedo and the tripmeter ... but I tested the sensor and it come out ok
Ok, so the dash and all the lights work and the tack does its thing?
 

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Temperature indication working?
 

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Nico...I need more info here. There are a couple of possibilities, but I need to know what is/is not working on your dash...including warning lights.
 
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