Car has no power

[mrjoseloza88]

2002 chevy malibu 3100SFI, drove to work yesterday morning car drove just fine, during the lunch hour it started to act up, turn it on it died tried again and dies tried a third time and lost all power. Battery has 12v, checked for continuity between the BATT and ALT and STARTER, all those lines had 12v, cleaned battery terminals and tightenal bolts up. I replaced the ignition switch, in hopes that would fix it but it did nothing (I needed a new switch anyway lol). Check all my fuses and they all work none are blown out, check all relays too. I turn the key and nothing comes on. No dash board no fuel pump no radio no lights. I tried turning on the lights with the key off and they didnt turn on. Fuse block has no power, my car is at my job and need to get it moving soon.

Any help would be great

[neophile_17]

Make sure you check your grounds as well. After that you'll probably need schematics to track down the problem. Or a lot of patience to follow the wires.Good luck!