Тойота РАВ4-Toyota RAV4
1. Car operation
2. Maintenance service
3. Engines
4. Cooling and air-conditioning systems
5. Fuel system and system of release of the fulfilled gases
6. Ignition system
7. The monitoring system and decrease in toxicity of the fulfilled gases
8. Coupling
9. A transmission
10. A kardannyj shaft and shaft of a drive of driving wheels
11. Brake system
12. A suspension bracket
13. A steering and a running gear
14. A body
15. An electric equipment
   The general data
   Technical characteristics
   Electric chains
   Check of the storage battery
   Replacement of wires of the storage battery
   Safety locks and the relay
      Safety locks
      Fusible inserts
      Protection automatic machines
      The relay
   Check and replacement of the relay of indexes of turn and the emergency light alarm system
   Check of system of gymnastics
   The generator
   System of start-up of the engine
   Replacement combined подрулевых switches
   Replacement of the lock and the cylinder of the lock of ignition
   Removal and installation of switches of the panel of devices
   Removal and installation of a combination of devices
   Check and replacement of the engine of a screen wiper
   Radio receiver and dynamics
   Aerial replacement
   Check and repair of a heater of back glass
   Replacement of lamps in headlights
   Adjustment of light of headlights
   Headlight replacement
   Sound signal
   Replacement of lamps накаливания
   Check of a drive of external rear-view mirrors
   Check of system of the cruise-control
   Check стеклоподъемников with an electric drive
   Check of system of the central blocking of locks
   Drive podemno-sdvizhnoj roof panels
   Safety pillows
Electric equipment schemes

Toyota RAV4>> Electric equipment>> Safety locks and the relay>> The relay
The relay is an elektronno-operated switch which usually carries out following functions:
– Switches the big currents дистанционно from a chain in which this current flows, allowing to use more thin wires and contacts of switches in the basic chain;
– Unlike the mechanical switch having one operating input, can carry out switching on several operating inputs;
– The timer and by that sets an interval of work of screen wipers.
If the electric chain operated the relay, fails, and a cause of defect, probably, is the relay, listen to relay work at the included system. If the relay regularly works, you should hear click at its inclusion. If the relay is serviceable, the cause of defect is concluded in elements or connecting wires. If the relay does not work, it means that it does not receive the basic power supplies or an operating impulse, or the relay is faulty.

Fig. 15.8. An arrangement of the block of safety locks and the relay in a motor compartment on models since 2001

The majority of the relay is established in the block of safety locks and the relay in a motor compartment (the Fig. 5.8 see).

Fig. 15.10. An arrangement of specialised relays in models till 2001: 1 – the block of the relay №2; 2 – the block of the relay №6; 3 – the connecting block №4; 4 – the block of safety locks; 5 – the connecting block №1; 6 – the block of the relay №6

Some specialised relays are located separately or in separate blocks under the panel of devices and in a motor compartment (fig. 15.10).

Fig. 15.11. The relay with constantly opened contacts: And — at giving pressure on a relay winding (1 and 2), contacts of the relay 3 and 5 become isolated; In — at giving pressure on a relay winding (1 and 2), executive contacts 3 both 5, and 6 and 7 become isolated in pairs

Fig. 15.12. The relay with switched contacts: And — at giving pressure on a relay winding (1 and 2), contacts of the relay 3 and 4 are disconnected, and contacts 6 and 7 become isolated

On cars four types of the relay are used: with constantly closed or opened contacts and switched contacts (fig. 15.11, 15.12). On cases of some relays the electric scheme of the relay with numbers of contacts is resulted.

Fig. 15.13. The scheme of check of the relay with constantly opened contacts

For relay check connect an ohmmeter to its contacts, thus the ohmmeter should show chain rupture (fig. 15.13). Then one additional wire connect contact of a winding of the relay to "weight", and the second additional wire connect the second contact of a winding of the relay to the positive plug of the accumulator, thus the relay should join to (click) and the ohmmeter should show short circuit (resistance 0 Ohm). Otherwise the relay is faulty also it it is necessary to replace.