Can't find the freezer door switch! Kenmore French Door Refrig/Freezer ...

I have a Kenmore french door refrig/freezer - the bottom drawer is the freezer. It worked fine for several months, then the light bulb in the freezer compartment stopped working. I removed the bulb and it checks fine in a lamp, but when reinstalled, it still doesn't light when the freezer drawer is opened. I suspect the door switch may be to blame, but I CAN'T FIND THE SWITCH! It is part 406B in the diagram.

Where is the switch on this model (top/bottom/left/right)?

Thanks!

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