to prevent elecrical fires
The Land Cruiser has two fuse panels. There is a panel in the floor on the passenger side and also a fuse panel in the engine bay.
Installed the battery backward. A short. Or a fuse blew.
You can find a diagram of the fuse box in an 87 Land Cruiser in the vehicle's owner's manual. You can also find it in auto part stores.
headlight fuses
Under the hood in the fuse/relay center.
The fuse box on my 85 landcruiser is on the outside wall next to the excellerator pedal.
My 93 has it under and to the right of steering column but it's a right hand drive.
Land cruiser
The Land Cruiser Prado has a smaller engine and body than the larger Land Cruiser 200 or LC200 (older model was the LC100). If you just say "Land Cruiser" then you could mean either the Prado or 200, specifying the particular sub model will give you the actual vehicle. Then of course you get various guises (engines and specifications) of the Prado and 200 and these depend on the market in which they are sold. There is also a Land Cruiser Pickup/Ute/Bakkie version and the prado also comes in a short wheel base version.
right next too the gas tank opener
try disconecting the battery or pulling the ECM fuse
one fuse panel is on the left front lower dash panel, the other is under the hood on the left fender