hazards, blinkers run whenever i hook the battery up

[92broncoOJ]

hey guys i have a problem. i had a dead battery this morning so i took it to pep boys and had it tested. everything was fine so i took it home and charged it. it put it back and cranked her up and it ran fine for 5 mins then it shut off. when i hooked the battery up the hazards came on. after the bronco shut off it wouldnt crank. i took the alternator off and brought it to pep boys and discount auto parts and they both told me it was working fine. before i go any further has this ever happened to you? why would the blinkers/hazards come on whenever i connect the battery?

thanks in advance

1992 ford bronco xlt 5.0

its been sitting outside for a while. i crank it every once and a while, i guess thats why the battery died.

 

[92bronco_in_progress]

hey guys i have a problem. i had a dead battery this morning so i took it to pep boys and had it tested. everything was fine so i took it home and charged it. it put it back and cranked her up and it ran fine for 5 mins then it shut off. when i hooked the battery up the hazards came on. after the bronco shut off it wouldnt crank. i took the alternator off and brought it to pep boys and discount auto parts and they both told me it was working fine. before i go any further has this ever happened to you? why would the blinkers/hazards come on whenever i connect the battery?thanks in advance

1992 ford bronco xlt 5.0

its been sitting outside for a while. i crank it every once and a while, i guess thats why the battery died.

if the hazards are flashing thats telling my truck has some sort of alarm on it so your first step should be to completely deactivate the alrm system