The generator matrix

 1  0  1  X  1  1
 0  1 X+1  0  0  0
 0  0 2X+2  2  0  0
 0  0  0 2X  0  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+40x^2+48x^3+135x^4+656x^5+2336x^6+656x^7+135x^8+48x^9+40x^10+1x^12

The gray image is a code over GF(2) with n=48, k=12 and d=8.
This code was found by Heurico 1.16 in -6.48e-008 seconds.