How will a P1721 code affect my 2011 infiniti fx35 & how do i fix it?

Question

I got a p1721 on my 2011 infiniti fx35. Should I be concerned?

Answer 1

P1721 Vehicle speed signal

Yes , when it comes to the CK ENG LT you should be concern , this code is from the vehicle speed sensor , if allowed to remain unresolved to long the TCM and the control valve of the transmission will end up being what is required to repair this code condition.