Lower voltage problem in MagSafe 2

Hello, I have a MagSafe 2 (45W) charger that is not working, apparently there was a short circuit (the wires broke), I fixed the wires, and measuring with a tester the output is 0.6V, when it should be 3V according to the documentation. Can you give me some idea of what the problem might be?

Thank you.

crwdns2934089:0crwdne2934089:0 crwdns2934093:0crwdne2934093:0

crwdns2934109:0crwdne2934109:0

crwdns2889612:0crwdne2889612:0 0

crwdns2942205:01crwdne2942205:0:

Apparently the voltage is "normal", I plug it into a macbook air and charge it normally.

crwdns2934271:0crwdnd2934271:0crwdne2934271:0

crwdns2934285:0crwdne2934285:0