If at all similar to the 3.0 Roadster then the big white square block connector on the back of the circuit board can cause missing functions.
The loom can be slightly over tight (like it was on mine) and can pull the pins backward in the connector with the car off and this connector plugged into the back of the board with a 2mm or so allen key push the pins into the connector to ensure they make contact you may see one sitting higher in the hole than others.
Obviously take care and do not short out 2 pins.
