hello mr-scotty i have problem in my car mustang 2004 its about battery light not show on its off all time even i start engine & seat belt no light bout the sound working ... help

if the battery light stays on all the time, either the alternator is bad, or the wiring to the warning system has shorted out. Places like auto zone test alternators free, start there

alternators i think its good but battery light it was working before i change the car battery then allot off things not working well ..... like (TRAC OFF ) stop working no light and ABS always on system service soon always on ........ thanks