1 Battery discharged. Test battery,recharge or replace ! 1 Alternator belt slipping. Check and adjust belt tension ! 1 Alternator belt broken. Replace broken or missing belt ! 1 Defective voltage regulator. Have regulator tested,repair or replace ! 1 Defective alternator. Have alternator tested,repair or replace ! 1 Faulty wiring. Test and repair wiring ! 2 Light lenses dirty. Wash with soap and water ! 2 Battery discharged. Test battery,recharge or replace ! 3 Bulb burned out. Replace bulb ! 3 Faulty wiring. Test and repair wiring ! 3 Fuse blown. Replace fuse ! 4 Bulb burned out. Replace bulb ! 4 Faulty wiring. Test and repair wiring ! 5 Faulty wiring. Test and repair wiring ! 5 Fuse blown. Replace fuse ! 5 Faulty flasher unit. Test and replace flasher unit ! 5 Defective switch. Test and replace switch ! 6 Faulty wiring. Test and repair wiring ! 6 Fuse blown. Replace fuse ! 6 Defective switch. Test and replace switch ! 6 Faulty electric motor. Test,replace motor or entire unit ! 7 Defective switch. Test and replace switch ! 7 Faulty electric motor. Test,replace motor or entire unit ! 7 Clogged lines or faulty pump. Unclog lines or replace pump ! 8 Bulb burned out. Replace bulb ! 8 Faulty wiring. Test and repair wiring ! 8 Fuse blown. Replace fuse ! 8 Defective switch. Test and replace switch ! 9 Faulty wiring. Test and repair wiring ! 9 Defective switch. Test and replace switch ! 10 Faulty wiring. Test and repair wiring ! 10 Fuse blown. Replace fuse ! 10 Faulty clock Test,replace clock or entire unit ! 11 Faulty wiring. Test and repair wiring ! 11 Defective switch. Test and replace switch !