✅ Kamaz 5490 Mercedes emergency mode electronics

On-board (built-in) diagnostics, reading errors. KamAZ-5490.

Other records on KamAZ-5490 fault codes:
Other records on the operation of the KamAZ-5490 vehicle:

Sequence of actions for reading errors.

Turn on the ignition and wait for the main screen to appear.

We activate the parking brake.

Press the “Down” button until we move to the “Diagnostics” item.

Cabin

They could very well make their own mainline tractor in Chelny on their own. Under the same index 5490, work was underway on a completely different car: with a cabin developed on the instructions of KAMAZ OJSC by the South Korean engineering company DMEC, part of Kia Motors, which, in turn, has been owned by Hyundai Corporation since the late 90s. And Hyundai Motor is seriously cooperating with Daimler. Prototypes of the entire family of these cabins were already ready: wide and narrow, with a sleeping bag and daytime, short ones. The cabins turned out to be very good, but the interior was not clear. Now the Mercedes-Benz Axor cab is installed on the KAMAZ-5490.

Read more about the fourth generation KAMAZ-5490 at this link.

Photo: Nikolay Mordovtsev, Vitaly Zudin

New generation KAMAZ: almost everything is imported

ZF retarder (intarder) error codes. Reading, erasing. KamAZ-5490.

Other entries on KamAZ-5490 fault codes:

Brake retarder warning lamp.

The retarder warning light comes on in Bremsomat mode, if the retarder is in active mode, and also with constant brake levels.

After turning on the ignition and setting the main brake switch to the “On” position, the brake system automatically checks the operation of the warning lamp.

If there is a defect in the electrical system,
the warning lamp flashes when the retarder is applied.
In addition to the normal function, the retarder control indicator serves to issue a flashing code (error number).

Issuing a flashing code and erasing error memory.

The issuance of a flashing code (error number) and erasing of the error memory can be activated using the brake level lever. The flashing code is indicated by the retarder warning lamp.

Issuing a flashing code.

Example for a 5-stage brake lever.

Turn off the ignition.
Set the brake level lever one step lower than the maximum brake level, in this case position 4.
Turn on the ignition and wait for the retarder warning light to remain on (3 seconds) or flash (5 seconds).
Within 5 seconds, set the brake level lever two steps lower than the maximum brake level (in this case, position 3), and then again one step lower than the maximum brake level (in this case, position 4).
Wait for the flashing code to be issued.

In addition to the normal function, the retarder warning lamp serves to issue a flashing code (error number).

If the flashing code is activated by the brake level lever, then at the end of the lamp control or, respectively, after 5 seconds, a constant flashing starts (in case of a malfunction), which sequentially displays the error number stored in the error memory.

Example, error number 23.

Erasing error memory.

Turn off the ignition.
Set the brake level lever to position 4 (max. position -1).
Turn on the ignition and wait for the retarder warning light to remain on (3 seconds) or flash (5 seconds).
Within 5 seconds, set the brake level lever to position 3 (max. position -2), again to position 4 (max. position -1), and then to position 0.
All errors indicated by the flash code are cleared to produce a flash code.

By issuing a flashing code, only those errors from the control unit that interfere with correct operation can be read out. Errors that do not affect the function of the control unit can only be read out using a separate diagnostic tool.

Erasing the error memory using the brake stage lever makes the errors stored in the error memory invisible to the flashing code. With a separate diagnostic tool, all errors are visible until they are cleared using the diagnostic tool.

What errors does the control unit produce on a KAMAZ 5490 vehicle?

The KAMAZ 5490 tractor belongs to the main truck type of vehicle. A German-made power unit is installed on board the truck. The Mercedes-Benz engine is capable of producing about 428 hp. The injection system with a PLD fuel mechanism ensures the efficiency of the engine. For 100 km of travel, the KAMAZ 5490 engine consumes about 33 liters of diesel fuel. The power unit installed in the car meets the requirements of the Euro 5 eco-standard. A characteristic feature is a comfortable European-style cabin, best suited for long journeys along highways: rubber mats on the floor, soft seats, refrigerator. For driver convenience, an electronic instrument panel with a touch screen is provided. Electrics KAMAZ 54901 operates at 24 V.

According to current legislation, the KAMAZ 740 engine number is indicated on the wall of the cylinder block on the left side in the direction of travel. The markings on the power unit are not repeated. Information about the base engine code, version, year of manufacture, as well as the serial number is indicated here. The data is entered in two lines in a percussive manner for the highest quality punching of numbers.

The central control unit with electrical equipment based on the CBCU3-E24L forms the basis of the multiplex architecture of the tractor. The task of the component is to control the electrical equipment of the machine. The task of the control unit is to prepare and process information for display. Thanks to the location of the controls for the KAMAZ 5490 truck tractor, it is possible to diagnose a problem right inside the truck cab.

Control devices sensitively monitor the condition of the vehicle's mechanisms. If a fault is detected, a corresponding message is displayed on the display.

How to identify a malfunction

The procedure for identifying problems in the operation of KAMAZ 5490 s5 and other modifications of the vehicle is as follows. You will need to start the engine and wait. The “CHECK” key on the instrument panel will light up. If the button does not go off within 3 seconds, we can talk about a malfunction in the functioning of the truck. Next, click on the diagnostic button. KAMAZ 5490 error codes are displayed on the screen. You can decipher them by contacting the service center. The information table will allow you to independently identify the most common problems.

List of common problems

SPN 620 fmi 3 - error decoding implies a voltage higher than the normal value or a short circuit. It is necessary to check the supply line of the pressure sensor and replace the EBS central module.

SPN 620 fmi 4 is the opposite problem, since the voltage level is below normal or a short circuit has occurred in the system. The principle of diagnosis and repair is similar to the previous defect.

SPN 171 fmi 4 indicates the ambient temperature sensor circuit ground.

SPN 171 fmi 5 shows an open circuit in the same place.

SPN 171 fmi 7 indicates that the temperature sensor signal is out of range.

SPN 96 - a group of KAMAZ 5490 errors combines problems with the fuel level sensor in the tank.

SPN 1087-1088, 1086 and 1089 – category of problems with the air pressure sensor of the 1st, 2nd, 3rd and 4th circuits, respectively.

When the designation SPN 7171, 7172 fmi 4, 5, 7 is displayed on the screen, you need to check the circuit of lines 1 and 2 of the steering keys.

SPN 97 fmi 4, 5 indicates a short circuit or open circuit of the water sensor in the fuel of the machine.

If the problem affects the angle of the steering wheel, SPN 1807 appears on the display with the corresponding fmi. Problems may include problems with the angle recognition mode, abnormal frequency, or failure of the mechanical system to respond properly.

SPN 1809 – group of lateral acceleration fault codes.

It is not uncommon for problems to arise with the braking system of a new tractor unit. Errors corresponding to the defects are SPN 520246 fmi 31, SPN 1049 fmi 14. Damage to the external brake demand system is indicated by the output SPN 520242, 520243 with fmi: 2 - unstable data, 9 - abnormal update rate, 10 - abnormal update rate indicator. The gearbox may also fail. This is indicated by the appearance on the screen of a message with the code SPN 126 fmi 3, SPN 197 fmi 8.

Group of SPN codes 7002, 7003, 7005, 7006, 7007, 7008, 7009, 7010 indicate problems in the operation of the left, right front turn signal, PTF, high and low beam headlights, respectively. Problems arise due to an open circuit.

If the problem has affected the battery potential, when the voltage is lower than normal or a short circuit has occurred, SPN 158 fmi 4 will appear on the display. You need to check the electrical supply terminal 15, the ignition switch, line output 15 for other voltage drops when the ignition is started. Replacing the EBS module usually resolves the issue - consulting a professional will help you draw the right conclusion. SPN 627 fmi 0, 1 indicates a defect in the power supply. In the first case, the indicators are above the normal operating range, in the second - below. The fact that the brake signal transmitter is malfunctioning is indicated by the error code SPN 1066 fmi 2, 8, 12. You should check the wiring and electrical connectors, the EBS transmitter.

How to decipher error codes

You can determine where the specific problem is by deciphering the fault codes. The display shows the name of the subsystem, the total number of defects, the serial number of the problem, the error parameter code and the type of failure. If there are more than 10 problems, you will need to fix the first ten first to become familiar with the rest.

Deciphering the error will help identify what led to the problem. Based on this information, a defect elimination plan is drawn up. Some problems can be resolved on your own. In some cases, you will need to contact professionals to restore normal operation of the tractor.

Technical characteristics of the KAMAZ 54901 tractor

This is what the engine looks like:

The technical characteristics of KamAZ-54901 are as follows:

maximum operating speed: 90 km/h;
diesel engine, power 550 hp;
crankshaft speed 1900;
engine cylinder, volume 11.95 l;
fuel tank 1200 X2;
wheel formula 4x2;
cabin parameters: width 2550 mm, height 1970 mm;
Fuel consumption level is 30 liters per 100 kilometers;
maximum load on the rear axle 11500 kg;
front axle, load 8200 kg;
semi-trailer, 35600 kg;
road train, total weight 44,000 kg;
curb weight 8400 kg;
diesel engine, six-cylinder, model 910.12-450 (Euro-5 standard), turbocharging;
Gearbox model: ZF 12TX2210 TD, 12-speed, automated, with a gear ratio of 2.278, hypodyne, gearbox model - Daimler HL6;
suspension type - pneumatic, ECAS model;
wheel parameters: disc, tubeless, radial with rim 9.00-22.5;
SCU height 1150 mm;
parameters of the coupling king pin, diameter 50.8 (2”), type Jost/Orlandi/SAF-Holland.
electro-pneumatic drive with ESP and ASR systems;
turning radius 9 m;
additional options: applications for controlling the technical parameters of the cabin, autonomous heater, air suspension, air conditioning, refrigerator.

Main bridge

Another predictable and justified design solution is the use of a completely “Mercedes” drive axle, the Daimler HL6 model, which is installed on the Axor and Actros. This is 100% imported from Germany. The axle has a single 3.077 hypoid gearbox with a differential lock. Disc brake mechanisms.

Daimler drive axle. It has a stamped-welded beam, brakes with ventilated discs, and a differential lock.

Daimler hypoid drive axles are used on 5490 truck tractors

Driver's workplace: what does it look like?

The KAMAZ 54901 driver's cabin is equipped with the latest comfort and safety requirements. Cab frame: MP4 K5. The salon is equipped with two sleeping places, soft seats with a comfortable backrest, a flat floor, and there is also a refrigerator. Equipped with an electronic dashboard and touch screen. The cabin width is 2500 mm. Suspension 4-point, spring type. Cabin type: high. Excellent ventilation, heat retention in winter, sound insulation. You can familiarize yourself with the cabin structure in more detail in the photos presented in this review.

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