2003 Yukon XL Door Lock Problem

[Tom McCormick]

I have a 2003 GMC Yukon XL. Rear doors and back lift door will not unlock when using fob, putting car in park, or when pushing unlock button on driver door. Front doors unlock as normal. When pushing fob button, i hear a clicking sound under dash by my left knee. Any ideas on how to fix?

 

[Donal]

I have a 2003 GMC Yukon XL. Rear doors and back lift door will not unlock when using fob, putting car in park, or when pushing unlock button on driver door. Front doors unlock as normal. When pushing fob button, i hear a clicking sound under dash by my left knee. Any ideas on how to fix?

Sounds like a connection is loose, corroded or damaged.