TCU specialized symbol flashing?

[peteandsoo]

Hi when out for a ride today I noticed that there was an intermittent flashing of the S symbol on the TCU as well as the on switch. Cannot find anything online, any ideas anyone?

 

[Mikerb]

possibly TCU battery low??

 

[nobbyq]

think mine did that but was the led pulsating duo looked like a flash perhaps

 

[peteandsoo]

it was intermittent

 

[thewildblue]

I think this is to do with bluetooth and it trying to connect. I could be wrong though.