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66 Posts
I have an intermittent electrical problem and would appreciate some help. (MTS1000DS, 2003)
A couple of weeks ago I turned the ignition key and the instrument panel did not light up. The engine would not turn over on the starter button. However the side light did come on and my heated grips worked fine. After switching off and on again a couple times everything worked fine and I forgot all about it.
Earlier this week I had the same problem again but much more persistent. Now it fails to switch on about once every three or four times.
Checked all fuses – all ok.
Checked all connectors – nothing visibly dirty, no pins bent or broken.
Removed the ignition switch and checked its resistance – originally 3Ohms on each circuit – sprayed contact cleaner in and worked the switch, now down to 0.5Ohms on each circuit, however this did not improve the problem.
With the switch on and the instruments not lit up I have removed the connector on the back of the instruments and checked out the red/black wire which supplies the switched 12V. It is live. On plugging it back into the instruments everything immediately powers up normally. Still no fix for the problem though.
The only major work that I have done recently on the bike required me to disconnect the big circular plug & socket on the left of the bike behind the battery (number 49 on the wiring diagram) to get better access. I have checked it and again it is clean with no pins damaged.
From what I can tell the ignition switch works fine and the instruments are receiving the full time 12V signal and the switched 12V signal. The problem still looks to me like a power problem on one of the feeds to the instruments, but I have proven that not to be the case.
Has anyone seen anything similar? Does anyone know how to debug the ignition module? Could a problem with the ignition show itself as a failure of the instruments to power up?
Any helpful suggestions would be appreciated as I’m getting desperate for a fix and am concerned about getting stranded at a fuel station after a fill-up.
Thanks,
Mark.
A couple of weeks ago I turned the ignition key and the instrument panel did not light up. The engine would not turn over on the starter button. However the side light did come on and my heated grips worked fine. After switching off and on again a couple times everything worked fine and I forgot all about it.
Earlier this week I had the same problem again but much more persistent. Now it fails to switch on about once every three or four times.
Checked all fuses – all ok.
Checked all connectors – nothing visibly dirty, no pins bent or broken.
Removed the ignition switch and checked its resistance – originally 3Ohms on each circuit – sprayed contact cleaner in and worked the switch, now down to 0.5Ohms on each circuit, however this did not improve the problem.
With the switch on and the instruments not lit up I have removed the connector on the back of the instruments and checked out the red/black wire which supplies the switched 12V. It is live. On plugging it back into the instruments everything immediately powers up normally. Still no fix for the problem though.
The only major work that I have done recently on the bike required me to disconnect the big circular plug & socket on the left of the bike behind the battery (number 49 on the wiring diagram) to get better access. I have checked it and again it is clean with no pins damaged.
From what I can tell the ignition switch works fine and the instruments are receiving the full time 12V signal and the switched 12V signal. The problem still looks to me like a power problem on one of the feeds to the instruments, but I have proven that not to be the case.
Has anyone seen anything similar? Does anyone know how to debug the ignition module? Could a problem with the ignition show itself as a failure of the instruments to power up?
Any helpful suggestions would be appreciated as I’m getting desperate for a fix and am concerned about getting stranded at a fuel station after a fill-up.
Thanks,
Mark.