Most likely code:
0121
Others to try:
0281, 1281, 0041, 2671, 4021, 4131, 4141, 4151, 4161, 4171, 4181, 4191, 0021, 0061, 0081, 0101, 0171, 0231, 0341, 0371, 0471, 0801, 0861, 1061, 1371, 2641, 1501, 0411, 3661, 3821, 3841, 3861, 5021
0121
0281, 1281, 0041, 2671, 4021, 4131, 4141, 4151, 4161, 4171, 4181, 4191, 0021, 0061, 0081, 0101, 0171, 0231, 0341, 0371, 0471, 0801, 0861, 1061, 1371, 2641, 1501, 0411, 3661, 3821, 3841, 3861, 5021