Infiniti QX4 service since 1996 of release
1. Introduction
2. Maintenance instruction
3. Routine maintenance
4. Engine
5. Cooling and heating systems
6. Power supply systems and managements
7. Start and charge systems
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 devices
12.9. Check of serviceability of functioning and regenerative repair of a heater of back glass
12.10. System of additional safety (SRS)
12.11. Schemes of electric connections
 












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12.7. Check of serviceability of functioning and replacement of the breaker of indexes of turns / alarm system

Models of cars considered in the real Management are equipped with system of additional safety (SRS). Before starting performance of any works near the block of a safety cushion, a steering column or the dashboard, disconnect SRS in order to avoid receiving traumas at its casual operation. Electroconducting of a chain of SRS is easy for distinguishing on yellow color of isolation.

The breaker represents a square form the relay established in the assembly block placed at the left under the dashboard (see the illustration Cхема of an arrangement of control units of various systems on Infiniti QX4 cars).

Serviceability of functioning of the breaker proves to be true distinctly heard rhythmical clicking. Failure of one of control lamps leads to refusal of operation of the breaker. At refusal of one of indexes frequency of operation of the breaker doubles, informing the driver on need of carrying out replacement of a lamp.

Simultaneous refusal of both indexes with high degree of probability testifies to failure of the corresponding safety lock. Refusal possibility actually the breaker, or the podrulevy switch is not excluded also.

 PERFORMANCE ORDER

  1. Check a condition of contact connections of electroconducting of the corresponding chain. At knocking-out of a safety lock check electroconducting on existence of signs of short circuit.
  2. For replacement of the breaker pull it vertically up and take from the landing nest.
  3. Track, that the replaceable breaker corresponded failed on a standard size.
  4. Installation is made upside-down.


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12.6. The relay - the general information and check of serviceability of functioning
on the following page»
12.8. Replacement of lamps of lighting devices