handbrake light gone

[mondeo2015]

Although the electric brake is working fine, the telltale is gone. when I operate the brake, the light doesn't show up on the dash.
When I put contact on without starting, the light is not there. Is it possible to enable it again with UCDS?
If someone knows, please let me know asap. What module to adjust? IPC for sure, but BCM or......also?
Thank you very much

[DeadlySin]

Did you upgrade IPC?

[mondeo2015]

Yes, I did

[DeadlySin]

Return old version and everything begin to work correct