Looking down inside the unit, at the left front side, find the interlock assembly. It is a microswitch and a lever. When you insert the basket, notice that the microswitch button is not completely pressed. With a small screwdriver, you should be able to push the tab next to the microswitch button and hear a click sound.

There are 4 screws on the interlock assembly. 2 screws attach to the microswitch to the assembly. You can leave those in place. Remove the other two screws and lift out the assembly.

Locate the interlock pin. Remove it with needlenose pliers, etc.