Hardware No USB connection

[Pintglass]

I have no USB connection on a switch that i'm trying to repair, charging works fine. I have continuity from the port on all pins and i have changed the common mode choke on the D+ and D- line but still seem to have very low resistance on the two lines.

Could someone tell me what resistance to ground they get on the D+ D- lines, measuring on the top of the common mode choke just above the USB port.