Toyota 4 Runner/Hilux/Surf

1987-1998 of release

Repair and car operation

Toyota 4Раннер
+ 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. Ignition system
   11.4. Coil (and) ignitions
   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 start-up of the engine
   + 11.12. Starter electric motor
   11.13. Traction relay
   11.14. Tension check
   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 lock drum
   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. Aerial
   + 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. Electroschemes

11.19. Search of malfunctions


The structure of electric chains of the car includes the consumer, switches, the relay and the wires connected on the enclosed scheme (see below). Before starting troubleshooting it is necessary to study the scheme and to define a possible source of malfunction. For example, the problem of troubleshooting is considerably facilitated, if it will be possible to check serviceability of other consumers directly or indirectly connected to a suspected chain.

If refusal of several consumers is observed, the most probable cause is break of connection with weight or a safety lock peregoraniye. As a rule refusals of electric equipment are caused by weakening of contacts or their corrosion, a peregoraniye of a safety lock or a crossing point oplavleniye. Search of malfunctions as a rule is carried out by means of a tester (voltmeter) or a control lamp which are connected between a site of a faulty chain and well smoothed out weight.

Connecting a tester or a lamp consistently on a contour of a chain it is possible to reveal a faulty site which is found on loss of tension or a lamp pogasaniye.

For search of short circuit in wires it is necessary to get a safety lock of a checked chain and in a gap to connect a lamp or the voltmeter. To short circuit with weight points lamp fire when rocking wires here and there (the tester should show tension). At check it is necessary to mean that some consumers receive a food at position of the Accessories or Run ignition key.

For check of reliability of connection with weight connect through an ohmmeter (or through a control lamp to a battery) checked connection of a wire with weight and well smoothed out site of weight. If the ohmmeter shows a chain (or the lamp will light up), connection with weight the reliable. Otherwise contact to weight is broken. Keep in mind that in most cases the weight serves the return tokoprovody, connecting a chain with a negative pole of the battery. Therefore violation of connection with weight, or a gap in a chain of a return current on the battery, can be the main reason for refusal.