Gear selector light not working

The smart junction box (fuse box) in your vehicle has fet transistors that can blow or will not allow voltage on a particular circuit if the module detected a circuit issue. Sometimes you can reset the module by disconnecting the connectors for 3 minutes or so and reconnecting. But if the fet transistor is blown, replacement is necessary and finding the short circuit should be done before replacement. I've attached a wire diagram so you can see how the illumination circuit is powered through the module from the violet-gray wire.