Tail lights and Dash lights are out after replacing multi function and flasher! on 2001 Buick Park Avenue

Need to know if I need a tail light switch or module or replace light and twilight control switch.

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1 answer 1 comment
Was the battery disconnected while switch was being replaced? It should have been!! Have you checked ALL fuses?
yes the battery was disconnected and the fuses have been checked.Also checked lights and all were good!