Both Mirrors Do Not Operate

Turn ignition on. Using a test light, backprobe between mirror control switch connector Orange wire terminal and ground. If test light comes on, go to next step. If test light does not come on, check connections between fuse panel and mirror control switch. If connections are okay repair open in circuit between fuse panel and mirror control switch.
Using test light backprobe between mirror control switch connector Orange wire terminal and Black wire terminal. If test light comes on, check mirror control switch connection. If connection is okay, replace mirror control switch. If test light does not come on, check Black wire ground connection and mirror control switch connection. If connections are okay, repair open in Black wire.