Having read the thread and successfully opening the tailgate by shorting the contacts, I know it's the microswitch that needs replaced. All good so far, but.....does anyone know the part number for the black switch holder assembly? I've searched various parts websites, and can't find the part listed anywhere. Help!
UPDATE
I've found the part no. It's 30699141 if that helps anyone in a similar situation. Best price I've found so far is from
www.volvopartshop.com