kezrob23

Can someone please help me!! i have an 01 corolla seca ascent AE112R which originally only had central locking via key in door. last xmas i got keyless entry installed by autobarn. just lately it's playing up, only locking when button is pressed, (but locks and unlocks with key in door) i took it back to autobarn to check, and they said the central locking module is stuffed and i need a new one. rang local toyota dealership this morn, they reckon it's some $300 computer, 1 wreckers didn't have a clue what i was talking about, and another said he needed a part number. can someone please tell me what it is i need, and where in the car this is located?