cruise control light on car pulls back
 

Hello everyone hope everyone having a good weekend 😁

I been having issues with my wife’s car
A scion frs 2014

The cruise control light is on
The car pulls back when breaking to low rpm
I changed map sensor and didn’t fix the problem,

Does have a check engine light but it said gas cap which isnt the case.

The car runs good when i rest the ecu the light goes off but eventually the cruise light comes back on and does the same issue any ideas where to look or what to check? I’m at a lost

with a code reader, what error code is stored in the car? there is no code for 'gas cap'.