Fusible links
Fusible jumpers are designed to protect the circuit during high current overloads. Jumpers are used in high-current circuits that cannot be protected by a conventional fuse.
FJ80 vehicles have cassette type jumpers, FJ60 and 62 vehicles have solder jumpers.
Cassette-type jumpers are similar in appearance to fuses. Part of the cassette jumpers is additionally fastened with a screw.
Solder jumpers are not repairable. To replace these jumpers, do the following:
- disconnect the battery from the ground;
- cut the jumper directly on the connector;
- remove the insulation from the end of the wire for a length of about 13 mm;
- fix the connector on the jumper by crimping the tabs of the connector, and solder the connection with solder to the rosin core;
- securely insulate the connection with tape;
- connect the battery to ground and check the operation of this section of the circuit.
Breakers
These devices protect the power window, door lock and headlight circuits.
On some cars, when the circuit is overloaded, the breakers work automatically, and immediately close, the circuit is restored. If the circuit does not recover after tripping the breaker, the breaker and circuit must be checked immediately.
After the fault has been eliminated, the isolator state is restored automatically. Some of the breakers are closed after they are manually operated.