CU T-CU Reading. - For Nissan e-cu and Tcm conversion and virgin e-. Adapter board code: 307140131. 1pc x MC/U3 adapter board kit. -K.-ey progarmming cas4/cas4+ all ke.-ys lost and adding k.-eys. -Progarmming cas1 cas2 cas3 cas3+ lost ke.-ys and add k.-ey.