Left Power Mirror Does Not Move Up & Down

Connect test light between Yellow and Light Blue wires at power mirror switch connector. Move power mirror switch up and down. If test light does not illuminate in one or both positions, replace power mirror switch. If test light illuminates in both positions, go to next step.
Connect test light between Yellow and Light Green wires at power mirror connector. Move power mirror switch up and down. If test light does not illuminate, service and repair open circuit in Yellow or Light Green wires between power mirror switch connector and power mirror connector. If test light illuminates, replace power mirror.