On vehicles with engines of environmental class 5 and 6, an electronic control unit for electrical equipment (ECU) is installed (see Fig. Location of fuses and relays with an electronic control unit).
Location of fuses and relays with electronic control unit
1 - Relay behind the switch panel; 2 - fuse block (F3, F7, F6); 3 — electronic control unit for electrical equipment; 4 - fuse F1, 5 - horn relay; 6 — relay for turning on the coupling headlight; 7 – starter relay; 8 – alarm relay.
Relay behind switch panel
Relay behind the switch panel for vehicles with engines of environmental class 5 1 - ECU relay (for certain configurations); 2 — ECU relay (for individual configurations); 3 — braking relay; 4 — fuel heating relay; 5 — relay for switching on instruments and starter; 6 — battery switch relay; 7 - power control relay after locking the instrument switch and starter; 8 - 12 V socket relay; 9 — windshield wiper stop relay; 10 - radio disconnect relay
Relay behind the switch panel for vehicles with engines of environmental class 6 1 - Clutch relay; 2 — starter blocking relay; 3 — pump power relay; 4 — relay for the heated line to the nozzle; 5 — relay for the heated line from the pump to the tank; 6 — fuel heating relay; 7 — relay for switching on instruments and starter; 8 — battery switch relay; 9 — power control relay after locking the instrument switch and starter; 10 - 12 V socket relay; 11 – relay for the heated line from the tank to the pump; 12 — radio disconnect relay; 13 — windshield wiper stop relay; 14 - heater relay
On the issue of replacing voltage regulators on KAMAZ
You need to install only the voltage regulator that was installed on the generator; another will not work. That is, the regulator from 1312 generators (without a resistor) will not fit on the G273V1. On generators 1312.3771 and its single-circuit models, you cannot install a generator with a resistor, or you need to remake it, it’s easier to buy the one you need.
3112.3771 analogue 6582.3701 Large size generators, but made according to the same scheme with additional. diodes, and in extreme cases they can also be replaced with G 273V1
There is also a “Ural” generator 1702.3771
Now the main question of the topic.
Fuse F5
Fuse F5 is installed on the front panel of the cab.
Fuse F5 1 - to fuse block F4; 2 - fuse F5; 3 - jumper; 4 — “Generator-fuse” wire; 5 — wire “Battery - fuse”; 6 - fuse wire; 7 - to fuse block F1; 8 - fuse wire
Electrical circuits of KamAZ have a single list of elements; the location zones of elements in semi-assembled circuits may differ slightly (Fig. 328-337).
Auxiliary brake sensor MM125D-3810600 TU37.003.546-76
Fuel level sensor SYAMI 407 611-114-01 (or SYAMI 407 611-114-02) TU4573-002-12258598-93
Speedometer sensor 2001.3843 TU37.003.1270-75
Electrical equipment
Batteries are used with a high capacity, work in pairs and are connected in series; Generator. The generator is disconnected from the batteries using the switch key. In order to solve these problems, you need to call or write to the technical support of the bank where you are served.
KamAZ has the ability to unload contents directly into distribution tanks if they rise above ground level.
Turning lights and hazard warning lights. The system uses a reversible electric motor ME. With optimal technical parameters, the device has a competitive price.
If the level is below normal, restore it by adding distilled water. The insert for the Manual contains a schematic diagram of the vehicle's electrical equipment, a list of circuit elements indicating the type markings of these elements from the main suppliers.
Widespread sale of parts for replacement, low cost of structural elements for repairs. Wiring on KAMAZ. We replace it with a new one. Part 1.
Related article: Switch era 12 how to connect
Consumer power
Power supply to consumers is provided by two batteries and a DC generator. The batteries and the generator are connected in parallel in the circuit. The negative wire from the battery is connected to the car body via a ground switch. It has a remote control and, if necessary, disconnects the battery terminal and the car body.
The on-board power supply voltage is 24 volts. To do this, 2 12-volt batteries are installed, which are connected in series with a jumper. Batteries are necessary to supply electricity to consumers when the internal combustion engine is turned off. After starting the power plant, consumers are powered from a DC generator.
ATTENTION: To prevent fire in the event of a short circuit, the electrical wiring is equipped with a fuse box.
How to identify problems yourself
To check the condition of electrical equipment, it is possible to carry out diagnostic measures at home. For example, the owner of a KamAZ Euro 4 can measure the voltage in a certain place in the electrical circuit. All you need is to buy a multimeter.
Experts recommend that every driver buy a universal diagnostic device to monitor the technical condition of the car.
Algorithm of actions if the chain on KamAZ Euro 4 fails:
- connect the probe of the testing device to the battery terminal with a minus sign;
- the second probe is connected to the area that requires diagnostic testing. It is best if it is installed in close proximity to the battery;
- when the light comes on or the multimeter display displays voltage, the area being tested is operating in normal mode. Accordingly, there is no need to repair the wiring here;
- the next step is to conduct a diagnostic test on all parts of the electrical chain. If there is no voltage on any of them, this means that the fault lies here;
- As a rule, problems in the wiring are explained by poor contact.
Without visiting the service center, you can try to independently find the area where the short circuit occurred:
- Remove the fuse element from the socket that is responsible for the element being diagnosed.
- Convert the testing device to a voltmeter.
- The first probe is connected to the safety terminals. First check that all circuit elements and additional devices are turned off.
- Move the cable. The display should show values that will indicate that a short circuit has occurred. Often a malfunction occurs when the insulating wire is frayed.
Thanks to modern testing equipment, KamAZ Euro 4 owners can check the condition of electrical equipment at no extra cost.
Diagram of external light signaling and wheel locking
Light signaling model 431185
In order to safely use the car and indicate the maneuvers being performed, the manufacturer equipped the model with a light signaling system. Light alarms include:
- Direction indicators;
- Alarm;
- Car brake lights;
- Lamp for reversing vehicle;
- Road train lights.
The blinking of the direction indicator lamps is carried out due to the operation of the breaker relay. The turn signal and hazard warning relays are housed in one housing.
Turning on the direction indicators is carried out using a combination switch located on the steering column of the car. A separate switch is provided to turn on the hazard warning lights.
The brake lights are switched on using a pneumatically driven switch. When you press the brake pedal, compressed air pressure acts on the switch membrane. The membrane closes the contacts for turning on the brake lights.
IMPORTANT: Thanks to the pneumatic drive of the switch, the brake lights come on both in the service brake system mode and when the parking brake is applied.
Trailer lights are used to identify a vehicle and trailer on public roads. The lights are turned on by a switch located on the front panel of the car. You can also read about KamAZ 55111.
KamAZ-5350: a universal all-terrain vehicle from the Mustang family
Factory designers received an order to develop a cargo all-terrain vehicle for army needs back in the mid-80s. However, due to the unstable economic situation, the first KamAZ-5350 vehicles were assembled only in 1992, and the truck was launched into mass production in 1995. The main purpose of the all-terrain vehicle is to transport military cargo and personnel to their destinations.
Also, various modules and add-ons for military purposes were mounted on the KamAZ-5350 chassis. The car was also used for civilian purposes, in particular, residential modules were installed on its chassis for geological expeditions, shifts of oil and gas producers. You can also often find truck cranes, tanks, and dump trucks built on the basis of this model.
In 2004, the car underwent a deep restyling, and since then it has been modernized several more times. Production of the KamAZ-5350 all-terrain truck continues to this day.
External and internal lighting
External lighting includes headlights and side lights. The exterior lighting is controlled by a combination switch mounted on the steering column.
REFERENCE: External lighting includes the lampshade, the space under the KamAZ 43118 body and the engine compartment lighting lamp.
The KamAZ 43118 electrical circuit includes interior lighting in the form of a lamp installed in the cabin and dashboard lighting. It is possible to adjust the brightness of the backlight.
What elements ensure normal operation of the electrical circuit?
The electrical circuit is capable of operating if the following serviceable elements are present:
- Batteries for accumulator. The KamAZ Euro 4 device requires 2 batteries that are connected in series. The positive terminal of the battery is connected to the starter, and the negative terminal is directed to the switch, passing through the body of the car. Batteries ensure efficient ignition operation when the engine starts.
- Generator. The device is responsible for powering electrical devices and devices. In addition, the generator unit helps charge the battery.
If you plan to actively use a KamAZ Euro 4 vehicle, it is advisable to check the technical condition of the above technical components before starting to drive.
Interior lighting scheme
Glass cleaning and auxiliary heater
The windshield is cleaned by brushes driven by an electric motor.
It has two rotor speeds. The wiper motor is controlled by a combination switch. The windshield wiper system includes an electric washer motor.
To maintain the required temperature in the cabin, KamAZ 431185 is equipped with an autonomous heater. Air circulation through the heating radiator is carried out using an electric fan.
From the above it follows that the KamAZ 43118 color wiring diagram is necessary for performing maintenance and repair of electrical equipment. The machine's wiring consists of several subsystems. The wiring is protected by fuses.
KAMAZ electrical repair | Expert-Autoelectrician
We repair auto electrics and electronic control systems of KAMAZ trucks. There is a technical assistance service with a technician visiting the work site.
Our equipment and operational experience allows us to diagnose and eliminate the causes of many faults without transporting the equipment to a stationary service.
We also carry out diagnostics and repair of Kamaz vehicles in a car service center at our base.
The lineup
We carry out electrical repairs for the following model range of trucks
View the entire range
KAMAZ engines and control systems
Our company’s specialists have mastered unique technologies for diagnosing faults and repairing electronic control systems and auto electricians for the following KAMAZ truck engines:
| 740 engine with fuel equipment BOSCH P7100 electronic regulator BOSCH MS6.1 No. 0281020090 | 740 engine with Common Rail equipment and BOSCH EDC7 control system No. 0281020114 |
Electrical diagram of the heating system
Electrical diagram of heating, sound alarm and windshield wiper systems
Heating serves to warm the control cabin during the cold season. The air is heated through a radiator. The hot air flow comes from a reversible electric motor of the ME-250 type.
Depending on the method of connecting the contacts, the motor operates in two modes. When connected to the positive pole of the power source, the motor shaft rotates to the right. When connecting to the negative pole - to the left.
The heating is controlled from the cabin via a key switch. The uninterrupted operation of components and assemblies is assessed using control lamps.
