LCM Alert Validation

TECH WILL RETURN WITH PROPER PARTS WILL UPDATE WI TH NEW ETA BY 3 6 DS TA COMPLAINT ALL CIRCUITS ALERT CORRECTION PERFORMED LIGHT CHECK AND FOUND ALL LIGHTS WORKING PERFORMED LIGHT FUNCTIONS AND FOUND RED CIRCUIT BRAKE LIGHTS NOT WORKING I CHECKED WIRING BEHIND 7WAY AND VOLTAGE AND FOUND WIRES CONNECTED PROPERLY AND PROPER VOLTAGE I CHECKED VOLTAGE THRU HARNESS AT TAIL AND FOUND HARNESS NOT GETTING ANY VOLTAGE THRU RED PRONG UNIT NEEDS NEW MAIN HARNESS FROM NOSE TO TAIL TECH WILL RETURN WITH PARTS FOR REPAIRS THANK YOU MA 2 2HRLY FOR DIAGNOSIS