Thread: C0161 ABS/TCS brake circuit system failure ????

So I just picked up a 2000 GTP 4 dr.

Replaced rear o2, oil change, and cleaned it up

Driving it and enjoying no SES light. I romp on it in a turn and all of a sudden the SES is back on. Pull the code and its C0161.
"BS/TCS Brake Switch Circuit Malfunction"

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I cNt find anything on this, and ive searched every keyword I can think of.
Also right side cv boot blew.
Went to replace and after I put the new axle seal in the trans and slide the CV in it still has alot of play (side to side).. bad iinternals on trans?.