1998 olds 88 no electric locks,windows, seats and wont start

Electric trunk lock 1998 olds 88 - 1998 Oldsmobile 88 ?????????? Could you explain a little ?

You should be fine, if there is a difference in connectors, at least you will have the ones off of your car that you can graft onto the new ones. The colors should be the same thou.

Battery connections good , battery ground cable connection on the frame an engine clean an tight ? No corrosion . I wouldn't look for any ground issues under your seat . No power , main cable problem , to starter etc...

Sounds like an intermittent in the ignition circuit, could be a faulty ignition switch. (not the lock cylinder, the actual electrical switch)

no power to the starter ? we need more details than whats posted

Some of these cars have a double positive battery cable at the battery if it is like that remove the cables and clean them and reinstall them if they won't tighten good enough you can add a washer between them to get them to tighten down. There is a round block of lead between them that gets smashed down over time that causes them to not tighten up if it looses power on one cable that feeds the cars ignition and other things like power seats and windows it will still crank over but not start.

try changing the body control module

i don't have a solution but my car did the same thing in october 2009 and i still have not had it repaired. I am told it is something electrical because its your fuel pump is not coming on and that is why the car is not starting but it doesnt make since why the windows and power seats dont work. I have also been told the only thing that connects the 3 of them is the body control module.

callme at affordable auto service 724-575-2821 ask 4 jason.......

ps: i know what your problem is..

check the fuses and circuit breakers near battery i'll bet one of them popped.