I got my '95 Deville alligned at Firestone and they told me I had a broken strut mount.

Several questions...

Do I have to get a new strut to repair that?

Could this problem cause a speed sensor fault?

Could it cause my traction control to be dissabled?

Could it cause the steering to vibrate when breaking?

Current (or history) related codes: T025, T027, T077.

I've replaced the hub and the rotor.

Thanks in advance for any advice.