Thanks for all the input!! Was anybody taht ha dthe SH__22 able to resolve the issue by cleaning anythign up or did you end up just replacign the switch?
I'd be concerned if it was working fine when you dropped it off. Likely it could just be a sensor not plugged in for sure.
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There's some troubleshooting info on the foot switch over on my SH__46 error page.
https://www.fjrforum.com/forum//index.php/topic/154126-dreaded-sh-46-error/
What was the bike in the shop for?
Thanks for the detail. I had looked at that thread but didn't see all the testing detail you had gone through. Closed it since didn't seem like the same problem.
It was in for a tune up and Valve Adjustment.
SH__22: Output signal of foot shift switch is abnormal
There is a procedure describing how to set the switch output voltage in the link in the above post. If the switch worked when you took it to the dealer and it does not work now I would suspect they damaged it. IF you turn the "shift lever pivot bolt" for any reason then the switch is probably damaged.. Did they take off the "Left Footrest Assembly" for any reason or work around that area. You might get lucky and adjust the switch to the correct output voltage, but if someone turned the shift lever pivot bolt and the switch rotated it is probably toast.
Don't ask me how I know.
What do you mean about the 'if somebody turned the shift lever pivot bolt.." Are you saying if the bolt gets turned it can cause trouble? Does it mess up the volatge and fry the switch?
The switch is essentially a variable resistor with a wiper arm inside to vary the resistance thus the output voltage. The switch can be adjusted to have an output voltage of approximately 2.5 volts when the switch is in the static position. Using the foot shifter increases or decreases the voltage signaling the ECU to either shift to a higher gear or a lower gear depending upon the output voltage increasing or decreasing past a set limit. If the shift lever pivot bolt is rotated and the switch assembly is not kept from rotating the internals of the switch could be damaged, thus preventing the setting of the output voltage at approximately 2.5 volts when the foot lever is in the static position.
A word of caution. The FOOT SHIFT SWITCH can test OK using the procedure outlined in the FSM on page 8-235, however if the wiper arm is damaged by excessive rotation the FOOT SHIFT SWITCH cannot be set properly.
Is there another switch that can go bad? The mechanic was able to get the swtch adjusted within the 2.4-2.6 range.