2000 Ford Explorer CHARGING SYSTEM

Engine size (4.0)
you need a test light and volt meter

1. check fuses
2. check fuse no .24 in the junction box and if fuse OK
3. measure volts on Black /Orange wire at alternator B+ terminal
if no power repair short if OK
4. disconnect alternator 3 pin electric connector ,measure volts of Yellow ?White wire terminal A if no power present repair a short if OK
5. reconnect 3 pin connector turn key on measure volts of Light green /Red wire (backprobing connector here ) if less than one volts repair open or short if OK
6. start engine and ground terminal F if charging system OK know replace the voltage regulator