C1290, traction control dash light lit

Started the 2012 Tundra truck this morning and had the traction control dash light on.
Got my faithful OBD reader out, pulled C1290.
The error is: abnormal zero point of steering angle sensor
I did a couple of searches and found nothing.
Any ideas?
Thank You
Greg

 

Do you have a car insurance dongle plugged into your OBD port normally?

 

I did install the TRD rear sway bar. And a trailer brake controller. We towed a car 200 miles or so without issue.
Not sure if either of those were contributing factor or not. I did not get the code until yesterday when I went to start it first thing in the morning.

 

Last trip pulling the car, it did the same thing. Drove a couple miles the next day without the trailer and the dash light was on, then it went off. I’m going to assume this is just normal behavior.