2016 Acura RDX - LKAS problem

Vin: 5J8TB3H3XGL002940

this acura rdx has LKAS light on, then lane departure warning message,

I have tried to locate where this LKAS unit is on the car but to no avail,

I could not scan the multicamera module on the windscreen, device wont communicate, and

the only unit I communicate to is the IDSS ( integrated driver support system, and in there I had fault code as U0131-00 ( lost communication to eps )

now when I scan EPS there is no fault code in there too,

ok I perform CAN wire check between multipurpose camera on the windscreen and the EPS and all is good, no open or short to earth or positive..

I want to know where this IDSS is on the car, even though the wiring diagram does not point to it.

thank and look forward to as to how to solve this LKAS thing

thanks