ZLJ24 and AXO Motors gone awry

[Mibbo]

Hi mate, the first thing that I would do is swap the motor wiring outputs over as in put motor 1 in motor 2,s output then test, this way you can see the working motor on both board outputs, if the suspected good motor works on both outputs of the board during test motor mode then you know the board is OK, if a motor fails from both outputs then you can safely say that the motor is faulty. Another test is to disconnect both motors and check the resistance of the motor winding respectively. Hope this helps.