Nissan Patrol, Ford Maverick

1988-1997 of release

Repair and car operation

Nissan Patrol and Ford Maverik
+ Cars of the Nissan Patrol and Ford Maverick series
+ Diagnostics of malfunctions
+ Settings and routine maintenance
+ Engine
+ Systems of cooling, heating and air conditioning
+ the Power supply system and production of the fulfilled gases
+ Systems of decrease in toxicity of the fulfilled gases
+ Systems of electric equipment of the engine
+ Transmission
+ Coupling
+ Brake system
+ Forward and back bridges, running gear and steering
+ Body
- Onboard electric equipment
   The elementary diagnostic equipment and examples of its application
   Removal and installation of the press button of a horn
   Alarm and lighting devices
   Removal and installation of a combination of devices
   Service of the sensor of a speedometer
   Audiosystem service
   Removal and installation of the motor of the fan of a heater
   Service of cleaners of a windscreen
   Service of a cleaner of back glass
   Safety locks, fusible inserts and relay
   Electroconducting of a food of electric equipment of the trailer
   Schemes of electric connections
   + Appendices

Бензиновий або дизельний двигун. Cocktail

Onboard electric equipment

The elementary diagnostic equipment and examples of its application

How to make a lamp sampler

Lamp sampler of nakalny type

At service of systems of electric equipment the lamp sampler is the most effective tool for stock-taking of conductivity of the contour which was under loading.

The elementary lamp sampler can be made of pair of pieces of a 4-millimetric wire, pair of clips of the crocodile type and the boss equipped with two contacts and 1-нитевой a lamp calculated on supply voltage in 12 In with a 2-contact socle (see an accompanying illustration).

1 — wires
2 — the boss
3 — a clip
4 — a lamp


    Smooth out wires since both ends for convenient length. Solder to one of the ends of each wire crocodile type clips. The opposite ends of wires connect to plugs of the boss, having tracked that they did not adjoin among themselves and to the case of the boss. Establish a lamp a socle in a cartridge. For check of serviceability of functioning of assembly connect clips to plugs of the 12-volt battery. The lamp should light up thus.

Lamp sampler on a light-emitting diode

Use of a lamp sampler of usual type (with a filament) for conductivity stock-taking in the chains including in the structure electronic components can lead to an exit of such components out of operation owing to course through them rather high current. Originators of this Management recommend to use in such cases a lamp sampler on the basis of a light-emitting diode (LED).

The elementary lamp sampler on a light-emitting diode can be made of a piece of a 3-millimetric wire of suitable length, a clip of the crocodile type, a light-emitting diode and the resistor of 1/4 W, 560 Ohm. Besides the casing which is rather simple for making of an old ball pen and a thin metal core (a wire piece), pointed from one end is required. Track, that connection of the anode and the cathode of a light-emitting diode was made in accuracy as is shown in an illustration.

1 — glue
2 — a light-emitting diode
3 — the diode cathode
4 — the diode anode
5 — the pen case
6 — a wire
7 — the resistor
8 — щуп (the pointed metal core)
9 — a clip

When using lamp sampler on a light-emitting diode it is necessary to remember that the diode passes a current only in one direction, therefore the lamp will function only in case the clip of a wire will be connected to a negative side of a contour, and щуп - to positive.


    Solder a wire piece to the light-emitting diode cathode (the cathodic plug much more shortly being in the neighbourhood with it at an end face of the diode anode). To the anode solder the resistor on 560 Ohm. Solder in are short a wire piece between the resistor and shchupy. Drill an opening in a wall of the case of a pen and let out in it a wire going from the cathode. By means of glue fix щуп in the pen case, having pushed its end in the bottom opening. To the cathodic wire let out through a lateral opening solder a crocodile type clip. The light-emitting diode can be fixed in a stopper which is densely entering into the top opening of the case of a pen. For supervision over the diode in a stopper the viewing opening should be done.

How to make a wire crossing point

At diagnostics of malfunctions of components of systems of electric equipment it is very useful it appears to have near at hand a wire crossing point.


    Smooth out since both ends a piece of a 4-millimetric wire suitable on length.
    Connect by both ends of a wire crocodile type clips (solder them, or fix in plugs screws). Examples of wires crossing points of various length are shown on an accompanying illustration.
    Check a wire a crossing point on conductivity existence for what disconnect one of wires from the battery and connect between the plug of the battery and a wire tip a wire crossing point. Include ignition, - regularly control lamps on the dashboard thus should light up. Remove a wire a crossing point and restore initial connection of the battery.

It is best of all to make in advance some wires crossing points of various length and with clips of various type.

Check of serviceability of switches

If there are doubts in serviceability of functioning of the switch, disconnect from it electroconducting and by means of a lamp sampler check it on food existence. If the switch is switched on in an ignition contour, for check it is necessary to turn a key in the situation ON.

Having defined color and location of a power wire disconnect from it a lamp sampler, take a suitable wire crossing point and connect it between a power wire of the switch and a wire from its opposite side. If a contour as it should be, it is necessary to replace the switch.

Check of serviceability of lamps

At suspicion on refusal of a lamp take it from the boss, then connect one end of a small wire crossing point to the positive plug of the serviceable battery, and its second end - to a uvula on a wall of a socle of a lamp.

One end of the second wire crossing point connect to the negative plug of the battery, the second press to lamp contact. The serviceable lamp should light up.

If the lamp is equipped with two filaments, press the wire crossing point end to the second contact of a lamp. The lamp also should light up. It is necessary to replace a faulty lamp adequate to it on power consumption and rated voltage of a food.

Check of serviceability of an electric chain

If there are suspicions on refusal of an electric contour, submit on it tension, having turned on the corresponding toggle-switches and switches.

Disunite any of plugs of a contour and connect one of lamp sampler wires to power, or the party of the disconnected chain turned to the switch. The second wire of a lamp sampler connect to mass of the car (to any screw or a bolt on the chassis, a body or the engine block). If the lamp does not burn, check a contour closer to the power supply or the switch.

If the lamp lights up, continue to carry out check, moving ahead towards the consumer of the electric power (the motor, a lamp, etc.).

The most optimum point of the beginning of check of a chain is the safety lock plug. Do not forget each time, passing to the following site of a chain to restore initial connection of the previous socket / terminal connection.