RAV4 PAB4-Toyota Toyota
1. Car operation
2. Maintenance
3. Engines
4. Cooling and conditioning systems
5. Fuel system and system of production of the fulfilled gases
6. Ignition system
7. The monitoring system and decrease in toxicity of the fulfilled gases
8. Coupling
9. Transmission
10. Driveshaft and shaft of a 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 storage battery
   Replacement of wires of the storage battery
   Safety locks and relay
      Safety locks
      Fusible inserts
      Protection machine guns
      Relay
   Check and replacement of the relay of indexes of turn and alarm light system
   Check of system of a charging
   Generator
   System of start-up of the engine
   Replacement of the combined podrulevy 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
   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 filament lamps
   Check of a drive of external rear-view mirrors
   System check cruise control
   Check of window regulators with an electric drive
   Check of system of the central blocking of locks
   Drive of the elevating and movable panel of a roof
   Safety cushions
Electric equipment schemes




Toyota RAV4>> Electric equipment>> Safety locks and relay>> Relay
The relay — is the electronic operated switch which usually carries out the following functions:
– switches big currents distantly 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, probably, the relay is, listen to operation of the relay 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 main power supply 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 (see the 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 relay winding (1 and 2), contacts of the relay 3 and 5 become isolated; In — when giving tension 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 being switched contacts: And — when giving tension 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 being switched contacts (fig. 15.11, 15.12) . The electric circuit of the relay is given in cases of some relays with numbers of contacts.

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, thus the ohmmeter should show a rupture of a chain (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, at this relay should join to (click) and the ohmmeter should show short circuit (resistance of 0 Ohm). Otherwise the relay is faulty and it is necessary to replace it.