Hey guys, need to pick your brains...

In January the ESP and steering wheel lights illuminated on my estate's dash and I collected some error codes:

U2160 - Steering Angle Sensor Communication Circuit Malfunction
Source Address: ABS/TC/ESP: U2143 - Invalid Data from SAS (Steering Angle Sensor)
Source Address: EHPS: U2139 - CAN-Bus CIM Message Range/Performance

...Cleaned the ABS plug and no problems since.

Today my wife couldn't unlock the car using the fob. The locking buttons on the door card didn't work either and "F" was displayed instead of temperature. The indicators also didn't work. Windows could be controlled using fob and door card buttons.

30 minutes later everything started working again. Do you think these errors are CIM related or is there something else going on here?