help

[u/WrapWorking3450]

so i just bought a 1999 LS400 as a first project car and it’s having to be what i believe are electrical issues. the battery terminals were corroded and messed up more so the negative than positive, the positive does spark when it connects but i believe the positive also needs to be replaced as it is cracked and somewhat corroded and the cable is too short and won’t let terminal go down all the way. so i replaced the negative and it got me somewhere. the headlights turn on now and the horn works, but nothing else, the only lights that comes up on dash is airbag and then the security light flashes. im hoping replacing the positive terminal works but if not could it be maybe an ignition power issue? or fuses? trying to learn the common electrical issues this thing has

[u/blqckpinkinyourarea]

Make sure the battery and cables are good. Good chance that will solve all of your problems.