"Check Engine" on Guage

[rodbolt17]

typically it takers about 15 seconds to get the code to display.

[99yam40]

????? What?????

Below is from a VZ200/225/250/300 Owner's manual with reference to funtionality of the conventional multi-function tachometer.

Someone slept while in the school house it appears. Now it won't display codes but it can display a check engine icon.

I thought he said he had the square CL gauge

[boscoe99]

The OP did. I was responding to rodnuts comment that only Command Link instruments have a check engine function.

[No Bail]

No codes from the Capt. Obvious method. I'll try the software after I digest the manual for YDS.
So no known past occurances with "Check Engine" flashing on square guages?