Toyota 4 Runner/Hilux/Surf

1987-1998 of release

Repair and operation of the car

Toyota 4ranner
+ 1. Maintenance instruction
+ 2. Maintenance
+ 3. Engines
+ 4. Systems of heating, ventilation
+ 5. Fuel and exhaust systems
+ 6. Transmissions
+ 7. Transmission elements
+ 8. Brake system
+ 9. Suspension bracket and steering
+ 10. Body
- 11. Electric equipment
   11.1. Specifications
   11.2. Battery
   + 11.3. System of ignition
   11.4. Coil (i) of ignition
   11.5. Ignition distributor
   11.6. Check and installation of the moment of ignition
   11.7. Block of electronic ignition
   11.8. Induction sensor
   + 11.9. System of a charge of the battery
   + 11:10. Generator
   11:11. System of launch of the engine
   + 11:12. Starter electric motor
   11:13. Traction relay
   11:14. Check of tension
   11:15. Detection of short circuit
   11:16. Check of reliability of grounding
   11:17. Check of integrity of a chain
   11:18. Finding of not closed chain
   11:19. Search of malfunctions
   11:20. Safety locks
   11:21. Fusible crossing points
   11:22. Breakers
   11:23. Relay
   11:24. Breaker of indexes of turn / alarm system
   11:25. Switch of indexes of turn
   11:26. Lock of ignition and drum of the lock
   11:27. Switch of external lighting
   11:28. Screen wiper switch
   11:29. Lamps of headlights
   11:30. Adjustment of headlights
   11:31. Headlight case
   11:32. Replacement of lamps
   11:33. Receiver and loudspeakers
   11:34. Antenna
   + 11:35. Screen wiper electric motor
   11:36. Switch of heating of back glass
   11:37. Heater of back glass
   11:38. Guard of devices
   11:39. Sound signal
   11:40. Electric drive of mirrors
   11:41. Cruise control
   + 11:42. Window regulator electric drive
   11:43. Electric drive of door locks
   11:44. Safety cushions
+ 12. Electrical circuitries


11:44. Safety cushions


Safety cushions (System of pneumosafety of SRS) are intended for protection of the driver (and the passenger) on a front seat in case of collision.

On a part of cars 2 pillows, one of which (from the driver) is mounted in the central part of a wheel, and another – are provided in a ceiling part of a glove box. Also is a part of the system the control unit and diagnostics mounted under the forward panel on the center of the car.

The safety module from the driver

The packed pillow and the device of forcing (reactor) which is under a pillow is a part of the module and it is connected to it an opening through which gas at receipt of a signal is supplied.

The signal is given on the cable winded in a flexible spiral around a wheel shaft irrespective of a wheel angle of rotation. The pillow is inflated with the nitrogen which is formed as a result of reaction of an oxide of copper and azid of sodium.

The safety module from the passenger

The device of forcing (reactor), the put pillow, the reactor and the facing panel are a part of the module.

Passenger's pillow much more than driver's pillow. A support of a pillow is the steel case of the reactor.

At inflation of a pillow the seam of the facing panel breaks.

Control unit and diagnostics

The block provides food and operation of a safety cushion even at the switched-off battery.

The block checks a condition of a security system. The control lamp of system (AIR-BAG lamp) at first lights up and at serviceable system dies away.

If the system is faulty, then the lamp continues to burn or blink (or the sound signal is distributed). In this case the car should be handed over immediately in car service for check.


Shutdown of system of pneumosafety: the neglect precautionary measures leads to casual disclosure of a pillow and to severe injuries.

When performing any works near a steering column or any unit of system it is necessary to disconnect safety cushions.

Shutdown of a safety cushion

1. Expose wheels in the provision of driving on a straight line and transfer the ignition key to position of LOCK.
2. Disconnect the battery from weight.
3. Start works not less than 2 min. later, necessary for the category of the condenser.

At manipulations with a pillow container always you take the revetted side of a container in the direction from yourself. It is forbidden to put a container the revetted party down. It is forbidden to measure resistance of any unit of system of pneumosafety as operation of a pillow from the ohmmeter battery is possible.

Before performance of welding works disconnect the socket of a safety cushion of yellow color which is located under a steering column about the socket of a combination of switches (from the driver) or a glove box (from the passenger).

It is forbidden to throw out a container with a pillow.