Service of the Infiniti QX4 since 1996 of release
1. Introduction
2. Maintenance instruction
3. Routine maintenance
4. Engine
5. Cooling system and heating
6. Feed and control systems
7. Systems of start and charge
8. Transmission line
9. Brake system
10. Suspension bracket and steering
11. Body
12. Electric equipment
12.1. Specifications
12.2. Search of causes of failures of electric equipment
12.3. Electric sockets - general information
12.4. Safety locks and fusible inserts - the general information
12.5. Chain breakers - the general information
12.6. The relay - the general information and check of serviceability of functioning
12.7. Check of serviceability of functioning and replacement of the breaker of indexes of turns / alarm system
12.8. Replacement of lamps of lighting fixtures
12.9. Check of serviceability of functioning and recovery repair of a heater of back glass
12:10. System of additional safety (SRS)
12:11. Schemes of electric connections
 












12-5-preryvateli-cepi-obshhaya-informaciya.html

12.5. Chain breakers - the general information


Arrangement of two breakers of a chain in the saloon assembly block of safety locks / relay

Breakers of a chain are used for protection of such components of system of onboard electric equipment as head headlights and electric motors of the drive of window regulators / cover of the top hatch / door locks, etc. (see an illustration above).

On some models after operation breakers revert to the original state automatically. If the overload causing shutdown of the breaker had not incidental character, it is necessary to check a condition of the corresponding contour immediately. After malfunction elimination the chain breaker enters the normal mode of functioning again. Sometimes return of the breaker to the working condition should be made manually after elimination of the reason of an overload.

For introduction of the breaker to the working condition disconnect a negative wire from the battery.

If the stereosystem established on the car is equipped with a security code before disconnecting the battery make sure that you have the correct combination for input of the audio system in action!

Take the breaker, pass a thin core throughout specially provided opening in the case and push it in an opening before click. Then it makes sense to make sure conductivity by means of an ohmmeter available between plugs of the breaker and only after it to establish it into place.


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12.4. Safety locks and fusible inserts - the general information
on the following page"
12.6. The relay - the general information and check of serviceability of functioning




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