Robot Locking Up... RSL is on solid

[Mark McLeod]

A solid RSL usually indicates the robot is in autonomous mode.
Was it also solid in other modes set by the Driver Station?
Any Diagnostic messages on the Driver Station?

I'd test with the generic default program to isolate the problem to electrical vs. programming.
If the default code exhibits the same problem, then concentrate on testing the electrical side.

If electrical in nature then it certainly could be a Digital Sidecar acting up. You can swap out components and move modules to help isolate it, using the status LEDs on most components.

If programming, then you can work backwards through the code, or restore a previously working version and work forward through later changes.