Wipers Do Not Operate In Any Mode
Check fuses. Check for faulty Red wire between IGN4 fuse and ignition switch, faulty Brown wire between ignition switch and WIPER fuse, or faulty Yellow wire between WIPER fuse and wiper module. Check for faulty Black wire between wiper switch and ground, or between wiper module and ground. Check for faulty ignition switch, faulty wiper module, or faulty wiper switch. Check for too much friction between wiper blades and windshield.