318Ti M44 ABS Light & Error Codes (Rough Running)

[MisterM52]

So I think the issue I was having months ago with my little Ti finally came to light. I bought the car as a daily and after a few months the issues began after a speed bump and I have read how the ABS not working can cause the engine to misfire.

Anyway so today it was driving fine, no usual hesitation or misfires but I finally saw the ABS light came on (no issue with braking)

Here is what I get in INPA

ASCMK20

129 main relay inside control unit  - How do I get to the bottom of this? Is it a relay inside the ABS Unit or the relay in the fues box or is there one inside the ECU compartment?

121 height adaption (Error Load registration) - Unsure what this is for but I assume its related to the two.

175 Output suction pipe-switching   - This I understand is DISA Related?

I cant seem to nail down if its the front two sensors or the ABS unit the culprit or some relay.

Any input appreciated.