Hi everyone!
I am chasing what looks to be a ground trouble on my EVT. Tachometer function is erratic and is influenced by changing from high to low beams and operating the turn signals. When I bought it, the sheath had been removed from the left switch cluster wiring. I thought the headlight modulator might be the cause, but problem remains after it was removed. Starting to troubleshoot it, I discovered an external ground wire had been run from the battery to the - on the gauge cluster plug under the right frame shield. No effect connected or disconnected. Unplugged the left switch cluster under the left frame shield & tach stopped working altogether. It appears that the tach ground is backfeeding to the left switch.cluster. If anyone knows the physical location of the gauge ground I would appreciate hearing about it as schematic just shows a ground. Thanks
I am chasing what looks to be a ground trouble on my EVT. Tachometer function is erratic and is influenced by changing from high to low beams and operating the turn signals. When I bought it, the sheath had been removed from the left switch cluster wiring. I thought the headlight modulator might be the cause, but problem remains after it was removed. Starting to troubleshoot it, I discovered an external ground wire had been run from the battery to the - on the gauge cluster plug under the right frame shield. No effect connected or disconnected. Unplugged the left switch cluster under the left frame shield & tach stopped working altogether. It appears that the tach ground is backfeeding to the left switch.cluster. If anyone knows the physical location of the gauge ground I would appreciate hearing about it as schematic just shows a ground. Thanks