Nissan Maxima QX
since 1993 release
Repair and operation of the car
Nissan Maxima QX
+ Cars of the Nissan Maxima brand
+ Maintenance instruction
+ Settings and routine maintenance
+ Cooling systems, heating
+ Power supply system and release
+ Engine electric equipment
+ Control systems of the engine
+ Coupling and power shafts
+ Brake system
+ Suspension bracket and steering
- Onboard electric equipment
General information and precautionary measures
Search of causes of failures of electric equipment
Safety locks and fusible inserts - the general information
Chain breakers - the general information
The relay - the general information and check of serviceability of functioning
Check of serviceability of functioning and replacement of the breaker of indexes of turns / alarm system
Check of serviceability of functioning and replacement of understeering switches
Check of serviceability of functioning and replacement of the switch of ignition and lock of blocking of a steering column
Check of serviceability of functioning and replacement of switches of the dashboard
Check of serviceability of functioning of measuring instruments of temperature of the engine and fuel consumption
Removal and installation of a combination of devices
Removal and installation of the radio receiver and loudspeakers
Removal and installation of the antenna of the radio receiver
Replacement of lamps of head headlights
Adjustment of the direction of optical axes of head headlights
Removal and installation of block headlights
Replacement of lamps
Check of serviceability of functioning, removal and installation of an electric motor of the drive of screen wipers
Check of serviceability of functioning and replacement of horns of a horn
Running fires of daylight (DRL)
Check of serviceability of functioning and recovery repair of a heater of back glass
Control system of speed (темпостат) - general information and check of serviceability of functioning
The electric drive of window regulators - general information and check of serviceability of functioning
The uniform lock - general information and check of serviceability of functioning
The electric drive of external rear-view mirrors - general information and check of serviceability of functioning
The electric drive of the top hatch - general information and check of serviceability of functioning
The electric drive of front seats - general information and check of serviceability of functioning
Transfer of management of functioning of onboard consumers of the electric power on dial-up lines
Safety cushions - the general information
+ Schemes of electric connections
Safety locks and fusible inserts - the general informationSafety locks
Various combinations of safety locks, breakers of a chain and fusible inserts are applied to protection of contact chains of electric equipment of the car. Assembly blocks, are installed under the dashboard and in a motive compartment of the vehicle. The scheme of placement of blocks can vary depending on model and year of release of the car.
Each separate safety lock is used for protection of any concrete electric contour or at once several contours. The ID card of placement of safety locks in the assembly block is usually glued to a cover of the last, from its internal party.
When replacing of the fused safety lock strictly you watch that the established replaceable corresponded on the type which left from an element. The safety locks calculated on various nominal current physically can differ in nothing from each other, without being at the same time interchangeable. Each of electric chains has various working parameters and needs various degree of protection therefore replacement of the safety lock calculated on a certain current, not corresponding to it in parameters is fraught with the most serious consequences (up to fire emergence). Working parameters of a safety lock (nominal current) are usually designated on its plastic case.
If the new safety lock at once after installation also fails, it does not make sense to make its further replacement, - before it is necessary to reveal and remove the cause of an overload in a chain. In most cases that appears the short circuit of a connecting electrical wiring caused by damage of its isolation.
Fusible inserts are used for protection of chains in which for any reason usual safety locks, such as a contour of system of ignition, and also for power chains in which the high-ampere current circulates cannot be used.
On the models considered in the present manual fusible inserts are placed in the assembly block of safety locks located in a motive compartment.
For replacement of a fusible insert disconnect a negative wire from the battery and, having pulled failed an element, take it from the landing nest.