The generator matrix

 1  1  1  1  X  1
 0  2  0  0  2  0
 0  0  2  0  2  0
 0  0  0  2  2  0
 0  0  0  0 2X  0

generates a code of length 6 over Z4[X]/(X^2+2X+2) who´s minimum homogenous weight is 2.

Homogenous weight enumerator: w(x)=1x^0+28x^2+16x^3+71x^4+240x^5+1336x^6+240x^7+71x^8+16x^9+28x^10+1x^12

The gray image is a code over GF(2) with n=48, k=11 and d=8.
This code was found by Heurico 1.16 in 3.62e-008 seconds.