Synchro-rev not functioning/illuminating

preR35

Having an issue, let me quickly detail what I did with my car today;

-Taken out of storage this morning (battery was disconnected during storage, so I reconnected it today of course).

- By default, the rev-matching feature was off initially, so I turned it on, left it on, and didn't experience any problems.

- Next, installed a new head unit in the afternoon ---> disconnected the battery temporarily, and removed parts of the center console/shifter area during installation. No issues after the installation, except...

..On my next drive, after multiple attempts to turn on the synchro-rev system, the light/feature wouldn't activate. I drove home and removed the shifter trim while the car was still running and made sure the S-mode button was connected properly, reattached the trim piece, and then the "S" finally displayed near the tach on my subsequent attempt. Turned the car off.

Then, on my last outing of the day, I once again couldn't get the SRM to activate.


Any ideas? Is there something I need to address after re-connecting the battery? Thanks for reading.