Left Power Mirror Does Not Operate In Left/Right Positions

Disconnect left power mirror connector. Connect test light between left power mirror harness connector terminal "A" (Light Blue wire) and ground. Move power mirror switch to left position. If test light glows, go to next step. If test light does not glow, check for open in Light Blue wire between left power mirror and power mirror switch. If circuit is okay, replace power mirror switch.
Connect test light between left power mirror harness connector terminal "B" (Red wire) and ground. Move power mirror switch to right position. If test light glows, replace left power mirror. If test light does not glow, check for open in Red wire between left power mirror and power mirror switch. If circuit is okay, replace power mirror switch.