Nissan Terrano 2 from 1985 to 1999
1. Maintenance instruction and to maintenance
2. Car maintenance
3. Четырехцилиндровыв engines
4. VS engines
5. All engines
6. Systems of cooling, heating, ventilation and conditioning
7. Fuel and exhaust systems
8. System of electric equipment of the engine
9. System of decrease in toxicity of exhaust gases
10. Mechanical transmission
11. Automatic transmissions
12. Coupling driveshaft and back bridge
13. A running gear of cars with a wheel formula 4x4
14. Brake system
15. Suspension brackets and steering
16. Body and furnish elements
17. Electric equipment system
17.1. Specifications
17.2. General information
17.3. Search of malfunctions - the general of data
17.4. Safety locks - general information
17.5. Fusible crossing points - general information
17.6. The relay - general information
17.7. Switches - check
17.8. Indexes of turns and the alarm system - general information
17.9. Headlights - adjustment
17.10. Headlights - removal and installation
17.11. Lamps - replacement
17.12. A sound signal - check
17.13. A sound signal - removal and installation
17.14. A windscreen cleaner - the general of data
17.15. The electric motor of a cleaner of glass - removal and installation
17.16. Stekloomyvatel - removal and installation
17.17. The block of switches on a steering column - removal and installation
17.18. The ignition switch - removal and installation
17.19. A guard of devices - removal and installation
17.20. The receiver - removal and installation
17.21. The lighter - removal and installation
17.22. The block of switches of lighting - removal and installation
17.23. The switch of the alarm system - removal and installation
17.24. The switch of a heater of back glass - removal and installation
17.25. A thermoelement of heating of back glass - removal and installation
17.26. Safety cushions - general information
17.27. Schemes the assembly and electric basic


17.3. Search of malfunctions - the general of data

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.

3.1а Inclusion of safety locks of the assembly block
3.1а Inclusion of safety locks of the assembly block

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 ASS 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.

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17.2. General information
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17.4. Safety locks - general information