Nissan Terrano 2 from 1985 to 1999
1. Maintenance instruction and to maintenance
2. Maintenance of the car
3. Четырехцилиндровыв engines
4. VS engines
5. All engines
6. Cooling systems, 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 elements of finishing
17. System of electric equipment
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. Screenwash - the general of data
17:15. The glass cleaner electric motor - removal and installation
17:16. Windscreen washer - 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 assembly and electric basic



17.3. Search of malfunctions - the general of data

The consumer, the switches, the relay and wires connected according to the enclosed scheme (see below) are a part of electric chains of the car. 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 is possible to check serviceability of other consumers directly or indirectly connected to the suspected chain.
If the refusal of several consumers is observed, then the break of connection with weight or burn-out of a safety lock is the most probable cause. As a rule failures of electric equipment are caused by weakening of contacts or their corrosion, burn-out of a safety lock or an oplavleniye of a crossing point. Search of malfunctions as a rule is carried out by means of a tester (voltmeter) or a control lamp which are connected between the 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 the faulty site which is found on loss of tension or blackout of a lamp.

3.1а Включение предохранителей монтажного блока
3.1a Inclusion of safety locks of the assembly block

For search of short circuit in wires it is necessary to get a safety lock of the checked chain and in a gap to connect a lamp or the voltmeter. With a weight points fire of a lamp when rocking wires to short circuit here and there (the tester has to show tension). When checking it must be kept in mind that some consumers receive 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 the battery) the 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), then connection with weight reliable. Otherwise the contact with weight is broken. Keep in mind that in most cases weight serves as the return current distributor connecting a chain to a negative pole of the battery. Therefore violation of connection with weight, or a gap in a chain of the 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