I have a 92 Previa and we have just lost several systems together, brake lights, tail lights, door locks, window locks, heater, dome light, radio. The vehicle still runs and has head lights, blinkers, etc. We have checked the fuses in the fuse box above the radio and next to the battery. We also have two of these Previa's and have swapped out some of the relays from our other previa in the interior fuse box and even removed the dash and swapped out some of the relays behind the dash but have not found the problem. Seems like it must be either a main fuse or relay to affect so many systems. Has anyone else experienced this with your Previa? Do you know where we might check for fuses or relays? Thanks.

I have done some additional work. The problem seems to be a break in the 100 amp fuse line from the fuse block near the battery to the interior fuse box. There is power where the line begins at the 100 amp fuse but not power to the systems that line feeds. Has anyone experineced anything like this. the line is hard to follow into the interior etc. thanks.