Tacho won't work... Pllllease help asap! - 600RR.net
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post #1 of 9 (permalink) Old 09-10-2008, 06:54 PM Thread Starter
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Tacho won't work... Pllllease help asap!

Right... My 2005 600RR's tacho won't show any RPM. When i tun the ignition on, the clock does it's sweep up and down back to zero, but when i turn the engine on, it stays at zero. It never shows the RPM. Everything else works on the display, lights, speed etc etc.
  • I have checked the fuses
  • I have proved that the tacho does work by putting the clock on another bike
  • I have proved that the wire is continuous from the ECU block connector all the way through te blue block connector on the main loom, into the clock loom and to the clocks block connector.
I am stuck now. I am thinking that the tacho is receiving power, as it perform s it's sweep when the ignition is switched on, but whichever way the bike tells the ECU to send it's info to the tacho to tell it to display the RPM, isn't telling the ECU anything. So maybe the problem is before the ECU...

I cannot find information to how the bike tells the ECU it's RPM for me to test the sensor or wiring etc.

Anyone with any info, please let me know. Everything seems to be fine except for this isolated problem. But it's a race bike, and with no tacho, i'll never pass through the technical inspection and cannot be noise tested on trackdays either...

Faulty wiring??????, faulty ECU?????, faulty sensor????? Info on what to do next would be great.



Thanks
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post #2 of 9 (permalink) Old 09-10-2008, 07:20 PM
 
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Check the service manual (I've sent you the link)

Chapter 20, section 16 & 17 will assist you.
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post #3 of 9 (permalink) Old 09-10-2008, 07:22 PM
 
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Have you done anything to the bike? Check to make sure the plug is connected under the tank. T




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Integrated Gear Indicator installed inside your cluster
http://tripageled.com/store/index.ph...product_id=116
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post #4 of 9 (permalink) Old 09-10-2008, 07:29 PM Thread Starter
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Pete, thanks very much.

Tripage, It's after midnight here so i'll be doing this tomorrow, but do you know of a particular plug under the tank that could cause this issue??#

Thanks for the help :)
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post #5 of 9 (permalink) Old 09-10-2008, 07:37 PM
 
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I can't remember the color plugs. I know one is for your speedo because you have to unplug it and hook it to the speedo healer. The one next to it is your tach from what I remember. T




http://tripageled.com/store/
Owner
Tristan Page
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[email protected]
Dual low / Dual High beam led headlights. OEM appearance
http://tripageled.com/store/index.ph...product_id=236
Integrated Gear Indicator installed inside your cluster
http://tripageled.com/store/index.ph...product_id=116
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post #6 of 9 (permalink) Old 09-10-2008, 07:40 PM Thread Starter
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Thanks mate, cross your fingers for me!
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post #7 of 9 (permalink) Old 09-10-2008, 07:42 PM
 
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Only other thing I can think of is the plug behind the gauge cluster. Have you done anything to the bike? Mods? T




http://tripageled.com/store/
Owner
Tristan Page
[email protected]
[email protected]
Dual low / Dual High beam led headlights. OEM appearance
http://tripageled.com/store/index.ph...product_id=236
Integrated Gear Indicator installed inside your cluster
http://tripageled.com/store/index.ph...product_id=116
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post #8 of 9 (permalink) Old 09-10-2008, 07:57 PM Thread Starter
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no mate, pretty standard...
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post #9 of 9 (permalink) Old 09-11-2008, 01:33 AM
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I fixed my tacho that showed similar symptoms - Something popped in the ECU. Maybe this can help you:
https://www.600rr.net/vb/showthread.php?t=104287



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