Flashing tracton control light

[03trk]

Hi all,
Progress was made and progress was lost. I replaced the YAW sensor and everything was good 4x4 worked, no flashing traction control light on the dash no Check advancetrac .
All the same codes as before though.
So I started working through the other codes and the darn flashing traction control light on the dash came on but that is all.
And most of my codes are gone
Except the C1998 and that is it.
I did attempt a reload of the as built.
However no change .

Thank you

 

[AWAR]

I was able to clear C1998 on my 03 Navigator. C1998 was the last code after restoring my air ride system. This code indicates incomplete module calibration. I was able to perform this calibration with the Snap On Solus scanner at my former employer. The last step is recalibrating the ABS steering position sensor. You may have to pay a shop to do this calibration, maybe Forscan can do it.