Air bag light code 19
 

While installing a new fog lamp switch on the column I FORGOT TO TAKE THE NEGATIVE LEED OFF THE BATERY. After assembly I get the flashing air bag light (code 19) also the horn stopped working. Any one have any ideas on how to fix this? Going to go back over my steps, looking for something. With negative pole off battery. 2012, 163000 miles
Your thoughts are very much appreciated
Old Guy