Toyota PAB4-Toyota RAV4
1. Operation of the car
2. Maintenance
3. Engines
4. Cooling systems and conditioning
5. Fuel system and system of production of the fulfilled gases
6. System of ignition
7. The control system and decrease in toxicity of the fulfilled gases
8. Coupling
9. Transmission
10. Driveshaft and shaft of the drive of driving wheels
11. Brake system
12. Suspension bracket
13. Steering and running gear
14. Body
15. Electric equipment
   General information
   Technical characteristics
   Electric chains
   Check of the rechargeable battery
   Replacement of wires of the rechargeable battery
   Safety locks and relay
      Safety locks
      Fusible inserts
      Protection automatic machines
   Check and replacement of the relay of indexes of turn and alarm light system
   Check of system of charging
   System of launch of the engine
   Replacement of the combined understeering switches
   Replacement of the lock and cylinder of the lock of ignition
   Removal and installation of switches of the dashboard
   Removal and installation of a combination of devices
   Check and replacement of the engine of a screen wiper
   Radio receiver and loudspeakers
   Replacement of the antenna
   Check and repair of a heater of back glass
   Replacement of lamps in headlights
   Adjustment of light of headlights
   Replacement of a headlight
   Sound signal
   Replacement of glow lamps
   Check of the drive of external rear-view mirrors
   Check of system cruise control
   Check of window regulators with the electric drive
   Check of system of the central blocking of locks
   Drive of the lifting and movable panel of a roof
   Safety cushions
Schemes of electric equipment

Toyota RAV4>> Electric equipment>> Safety locks and relay>> Relay
The relay is an electronically controlled switch which usually performs the following functions:
– switches big currents remotely from a chain in which this current flows, allowing to use thinner wires and contacts of switches in the main chain;
– unlike the mechanical switch having one operating entrance can carry out switching on several operating entrances;
– the timer and by that sets an interval of work of screen wipers.
If the electric chain operated by the relay fails, and a cause of defect, perhaps, the relay is, listen to operation of the relay at the included system. If the relay regularly works, then you have to hear click at its inclusion. If the relay is serviceable, then the cause of defect is concluded in elements or the connecting wires. If the relay does not work, it means that it does not receive the main power supply or the 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 installed in the block of safety locks and the relay in a motor compartment (see Fig. 5.8 ).

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

Some specialized relays are located separately or in separate blocks under the dashboard and in a motor compartment ( fig. 15.10 ).

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

Fig. 15.12. The relay with the switching contacts: And — when giving tension on a winding of the relay (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 the switching contacts ( fig. 15.11 , 15.12 ). The electric circuit of the relay with numbers of contacts is given in cases of some relays.

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

For check of the relay connect an ohmmeter to its contacts, at the same time the ohmmeter has to show a rupture of a chain ( fig. 15.13 ). Then one additional wire connect contact of a winding of the relay with "weight", and the second additional wire connect the second contact of a winding of the relay with the positive plug of the accumulator, at this relay has to join (to click) and the ohmmeter has to show short circuit (resistance of 0 Ohms). Otherwise the relay is faulty and it needs to be replaced.