VOLVO TRUCK ERROR CODES AND DECODING

What the error consists of

P0123

The first character is the letter defining the type of defective system:

P - malfunctions of the power unit or transmission (automatic transmission).

B - malfunctions in the operation of body systems: airbags, power windows, central locking, etc .;

C - malfunctions in the chassis of the vehicle;

U - errors associated with the interaction of electronic modules.

The second sign is a number that determines the specificity of the malfunction:

0 - a common character for OBD pads;

1 and 2 - personal codes of the automaker;

3 - reserved information.

The third sign determines the type of breakdown:

1 and 2 - air or fuel supply;

3 - ignition unit, system for fixing the misfire ignition of the air-fuel mixture;

4 - an additional emission control mechanism;

5 - control of vehicle speed and idle;

6 - electronic control modules and their wiring;

7, 8 - errors in the operation of the gearbox;

9, 0 - reserve.

The fourth and fifth signs of the error are numbers that correspond to the serial number of the fault.

All errors in Volvo cars can be displayed in two-, three- and four-digit forms, depending on the version of the control unit (year of manufacture of the car) and the diagnostic method. Fault codes for trucks have the “PID” prefix, which is preceded by numbers, and OBD2 errors are always displayed with the letter “P”.

Service Information Trucks Group 28 Release2 Engine Control Module (ECM), Diagnostic Trouble Code (DTC), Guide 2010 Emissions

Table with errors

Message	Decoding tekt messages
ABS BRAKE SERVICE REQUIRED	Problems in the operation of the traction control system. Possible reasons : incorrect operation of sensors mounted on wheels; damage to the wiring or poor contact of one of the system elements with the anti-lock braking system control unit; ABS control module malfunction .
ALARM SYSTEM SERVICE REQUIRED	Failure or incorrect operation of the standard alarm
ALARM TRIGGERED CHECK CAR	Activation of the anti-theft alarm system
BOOT LID OPEN	Open door luggage compartment
BRAKE FAILURE SERVICE URGENT	Brake system malfunction
BRAKE FAILURE STOP SAFELY ASAP	A critical malfunction in the brake system. Further movement by car is not possible.
BULB FAILURE DIPPED BEAM	Malfunction in the low beam system. If the wiring, bulb and fuses are OK, the user needs to test the operation of the steering column switch.
BULB FAILURE POSITION LIGHT	Problems in the operation of the overall optics. The problem may be due to poor contact with the wiring or malfunction of the relay.
BULB FAILURE REAR FOG LIGHT	Failure of one of the fog lights. The cause of the error should be sought in fuses, relays or wiring. If all elements are intact , the light source changes .
BULB FAILURE RIGHT TURN SIGN	Malfunction of the right rotary indicator
BULB FAILURE LEFT TURN SIGNAL	Failure of the left turn signal
CHANGE TRANS OIL AT NEXT SERVICE	The need to replace transmission fluid. A warning may be due to a lack of fluid due to damage to the gearbox.
CHECK BRAKE LIGHT	Faulty operation of stop lights
CHECK COOLANT	Lack of antifreeze, system diagnostics required for leaks
COOLANT LEVEL LO, STOP ENGINE
COOLANT LEVEL LO STOP SAFELY ASAP
DOORS OPEN	One or more car doors are not locked
DRIVE SLOWLY SERVICE URGENT	The need for passage of maintenance
DSTC SERVICE REQUIRED	Violations of the stabilization control system and dynamic traction
DSTC OFF	A message about disabling the dynamic traction and stabilization system, the driver is recommended to move as slowly as possible
EL. POWER SYSTEM SERVICE REQUIRED	Malfunctions in the car electric network. It is necessary to check the operation of the battery and generator, the problem may be due to poor power supply or poor connection.
ELECTRIC HEATER ON	Electric heating system activated
EMISSION SYSTEM SERVICE REQUIRED	Malfunction in the exhaust system
ENGINE SERVICE REQUIRED	Problems in the operation of the internal combustion engine (internal combustion engine)
ENGINE SYSTEM FIX NEXT SERVICE	The fault in the microprocessor
ENGINE SYSTEM SERVICE REQUIRED	Malfunctions of the electronic engine control unit (ECU)
FILL WASHER FLUID	Insufficient fluid level in the washer expansion tank
FUEL FILLER CAP OPEN-LOOSE	The fuel filling hole in the car is not locked.
HEATER STOPPED LOW BATTERY	Deactivation of the auxiliary heating system as a result of insufficient battery
HEATER STOPPED LOW FUEL LEVEL	Additional interior heating is disabled due to lack of fuel in the tank
HIGH ENGINE TEMP	Increased engine temperature
HIGH ENGINE TEMP STOP SAFELY ASAP	Extremely high engine temperature. Possible reasons: malfunction of the radiator device associated with its clogging or damage; violation of the sealing in the cooling system (refrigerant leak due to valve loosening, nozzle damage, malfunction of the pump or heater tap ); yield of failure of the thermostat ; malfunction of the pump ; output of system fan .
IMMOBILIZER SEE MANUAL	Incorrect operation of the standard anti-theft system
LEFT REAR DOOR OPEN	The left rear door of the car is not locked
MAX ENGINE SPEED REDUCE SPEED	Extremely high engine speeds
NO IMMOBILIZER SERVICE REQUIRED	The standard anti-theft system does not work. Such a problem may be programmatic or mechanical in nature. In the first case, the problem is solved by the reprogramming method, since it consists in the desynchronization between the motor module and the chip of the anti-theft system. For mechanical malfunctions are : defects in the electrical circuit ; malfunctions in the conductors and power system; damage to the patch cable .
NO OIL PRESSURE STOP SAFELY ASAP	Critically low oil pressure, it is necessary to stop the power unit and contact service.

EL. POWER SYSTEM SERVICE REQUIRED	Malfunctions in the car electric network. It is necessary to check the operation of the battery and generator, the problem may be due to poor power supply or poor connection.
ELECTRIC HEATER ON	Electric heating system activated
EMISSION SYSTEM SERVICE REQUIRED	Malfunction in the exhaust system
ENGINE SERVICE REQUIRED	Problems in the operation of the internal combustion engine (internal combustion engine)
ENGINE SYSTEM FIX NEXT SERVICE	Microprocessor malfunction
ENGINE SYSTEM SERVICE REQUIRED	Malfunctions of the electronic engine control unit (ECU)
FILL WASHER FLUID	Insufficient fluid level in the washer expansion tank
FUEL FILLER CAP OPEN-LOOSE	The fuel filling hole in the car is not locked.
HEATER STOPPED LOW BATTERY	Deactivation of the auxiliary heating system as a result of insufficient battery
HEATER STOPPED LOW FUEL LEVEL	Additional interior heating is disabled due to lack of fuel in the tank
HIGH ENGINE TEMP	Increased engine temperature
HIGH ENGINE TEMP STOP SAFELY ASAP	Extremely high engine temperature. Possible reasons: malfunction of the radiator device associated with its clogging or damage; violation of the sealing in the cooling system (refrigerant leak due to valve loosening, nozzle damage, malfunction of the pump or heater tap); failure of the thermostat; malfunction of the pump; fan failure.
IMMOBILIZER SEE MANUAL	Incorrect operation of the standard anti-theft system
LEFT REAR DOOR OPEN	The left rear door of the car is not locked
MAX ENGINE SPEED REDUCE SPEED	Extremely high engine speeds
NO IMMOBILIZER SERVICE REQUIRED	The standard anti-theft system does not work. Such a problem may be programmatic or mechanical in nature. In the first case, the problem is solved by the reprogramming method, since it consists in the desynchronization between the motor module and the chip of the anti-theft system. Mechanical problems include: defects in the electrical circuit; malfunctions in the conductors and power system; damage to the patch cable.
NO OIL PRESSURE STOP SAFELY ASAP	Critically low oil pressure, it is necessary to stop the power unit and contact service.
POWER STEERING SERVICE REQUIRED	Failure of the power steering system
REDUCED GUARD SEE MANUAL	Failures or incorrect operation of the anti-theft system
SKID WARNING SERVICE REQUIRED	Malfunctions in the stabilization system
SRS-AIRBAG SERVICE URGENT	Airbag malfunctions
START PREVENTED TRY AGAIN	The power unit of the car is blocked, you need to try to start the engine again
STC SERVICE REQUIRED	Incorrect operation of the traction control system
STC OFF REDUCE SPEED	Malfunction of the wheel stabilization control system, it is recommended to slow down
TRANSMISSION FIX NEXT SERVICE	Automatic transmission failure (non-critical problem)
TRANSMISSION OIL TEMP HIGH	Extremely high gearbox oil temperature

The code	Description of error codes
PSID21	Malfunction in trailer braking system
E3	Problems associated with the operation of the auto-refrigerator. The problem may be damage to the wiring or compressor device.
E003	SRS system configuration failure
UEM 0004	Siren communication error
Dem 0006	Invalid feed pump signal.

The code	Fuel system malfunctions
ECM 002C	On cars of 2003, 2004, 2007 and other years of production, this code indicates the wrong amount of fuel that is recorded when starting or stopping the power unit
ECM 440C	Code 440 C appears when the fuel level controller malfunctions
ECM 2520	Critically low fuel pressure recorded in the fuel system, a possible cause is a sensor malfunction
P0001	Code 0001 indicates a malfunction in the fuel regulator. The problem may be a break in the wiring.
P0004	High signal coming from the fuel controller
P0006	On cars 2000, 2001, 2002 and other years of production, the code indicates a malfunction in the fuel shut-off valve. The problem may be due to the critically low signal coming from the device.
P0180	The fuel temperature controller A does not work or a signal is being sent to the control unit that is outside the permissible range
P0185	Damage or defect to the power line connected to the fuel temperature controller
P0191	Failure or incorrect operation of the pressure sensor installed in the fuel rail. The pulse supplied from the controller is outside the range of acceptable characteristics.
P0232	The increased signal level recorded in the secondary power line of the fuel pump

The code	Engine malfunctions
ECM 671D	Incorrect camshaft position. The problem may be a malfunction of the sensor or damage to the pulley itself.
ECM 1507	Turbine malfunction, critically low signal from device
ECM 3501	The control module reports the fixing of misfires in the first cylinder of the engine. Possible causes of the problem: malfunction of the spark plug: damage to its contact or the formation of soot on the device; failure of the switchgear, the appearance of cracks in its housing; poor compression in the cylinders of the power unit; lack of balance in the formation of the air-fuel mixture, in particular, lack of fuel; malfunction of one or more fuel injectors.
ECM 3502	Misfire in the second cylinder of the engine
P0300 (ECM 3503)	Misfire in the third cylinder of the power unit
ECM 3504	Misfire in the fourth engine cylinder
ECM 6140	Malfunctions of the camshaft adjustment system
P2089 (ECM 6400)	Intake camshaft recovery valve is not working properly or is turned off
P0011 (ECM 640 A)	Error camshaft position of the car. Possible causes of the malfunction: malfunctioning CVVT phase distribution system ; malfunctions recorded in the functioning of the camshaft gear; violation of the flow of motor fluid into the piston chamber VCT ; damage to the wiring or contact elements on the connection block of the gas distribution system; VVT - i valve sensor breakdown due to clogging or when replacing the timing chain.
P0014 (ECM 641)	On Volvo Kodtruck , F 12, FH 13 ACM and other versions, this code indicates malfunctions associated with the functioning of the exhaust shaft adjustment system
P0026	The combination P0026 (0026) appears when the inlet valve control solenoid valve breaks down. The problem should be sought in the first bank of the car engine.
P0027	Code P0027 is associated with a malfunction in the electromagnetic exhaust valve control device. The problem may affect the functioning of the engine, including reduced power and the appearance of detonation.
P0170	Violations in the formation of the air-fuel mixture. The code may be displayed as a combination of P 017068, depending on the equipment being diagnosed and the software version.
P0171 (ECM 261 A)	Overestimation of the combustible mixture associated with air leaks
P0243 (ECM 6800)	Failure or malfunction of the exhaust gas shutter solenoid of turbine A
P0420	Low efficiency of the operation of the catalyst device
P1137	Violations in the system of additional adaptation of the combustible mixture with air. The problem is in the front row of the engine and may lead to its incorrect operation.

P1238	Malfunctions of the second cylinder of the engine. The device might be stuck in one of the positions.
P1889	This code can be displayed as a combination of P 188918 and indicates a violation of the sealing of the working piston of the engine
The code	Description of errors in the operation of sensors
REM 4F43	On Volvo 480 and other data models, the code indicates a malfunction in the parking assistance system, which may be due to the failure of one or more sensors
ECM 1300	On Volvo FSH 12, 13 and other models, code 1300 or 130A indicates a malfunction in the mass air flow sensor
ECM 1400, ECM 140A	Problems with the charge pressure controller. The problem may be due to a malfunction of the controller itself or indicate an incorrect signal coming from the device.
ECM 2900	This code can have two decryption: malfunction of the outside temperature sensor; failure of the fuel pressure controller.
ECM 5000	Possible problems: malfunction of the crankshaft speed controller; failure or malfunctioning of the air conditioning linear pressure regulator.
B0001	Error in the operation of the frontal airbag sensor located on the driver's side.
B0004	Malfunction in the deployment mechanism of the lower airbag installed on the driver’s side
P042D	Malfunctions or failure of the secondary catalytic converter temperature controller
P0100	Malfunction of the mass air flow controller or malfunction of its power line, cable damage may occur. With such a problem, the engine will function unstably, since the combustible mixture is formed with the wrong proportions. If errors occur in the operation of the sensor, it is necessary to check the flowmeter, as it could become clogged. A special carburetor cleaner is used to remove contaminants.
P0101 (ECM 130A)	The signal from the air flow controller is out of range. If this code appears on the Volvo with diesel or gasoline, it is necessary to test the flowmeter and clean it.
P0106	The signal from the air pressure controller is out of range. The problem may be related to malfunctions of the regulator itself or its incorrect connection.
P0335 (ECM 5200)	Error crankshaft position controller marked A.
P0340 (ECM 3000)	Malfunction in the camshaft sensor, an intermittent or incorrect signal from the device is detected
P1332	Malfunction of the fourth knock controller, a low signal is received from the sensor
P2135	Malfunctions in the throttle pedal position controller

The code	Malfunctions of sensors of the stabilization system
BCM 0030	Malfunction of the speed controller mounted on the rear left wheel
BCM 0080	Lateral acceleration controller malfunctioning or intermittent, wiring may be damaged
BCM 0090	Malfunction of the lateral acceleration controller, no pulse is transmitted from the sensor or the signal is incorrect
BCM 0103	The brake pedal lock controller sends an incorrect signal to the control module
BCM 0109	Steering angle sensor malfunction, device must be replaced
BCM 0112	Sensor calibration system malfunctioning
BCM 0114	Malfunction of the rotation controller during skidding
BCM 0115	Steering wheel controller failure, the control unit could not establish a connection with the device
BCM 0116	Malfunction of the level control when skidding the vehicle. An incorrect signal is coming from the sensor to the control unit or the wrong sensor was installed in the car.
BCM 0125	The lateral acceleration controller does not work or an incorrect signal is supplied from the device
BCM 0129	Faulty acceleration path sensor. The pulse applied to the control module is out of range.
BCM 0139	Failure or malfunction of the solenoid valve of the brake booster
BCM 0147	The brake pedal position controller is malfunctioning or the device is receiving an incorrect signal
BCM 0148	Steering angle control does not work or its configuration is incorrect
BCM 0150	Malfunction of the stop lamp switch, a break on the control and power line is possible
The code	Oxygen Sensor Errors
ECM 2210	On Volvo FSH 16 and other versions, this code indicates the failure of the rear heated oxygen controller. An incorrect signal is received from the lambda probe to the control module.
P0030 (ECM 2810)	Damage to the wiring or failure of the heating element of the primary lambda probe. If the power cable is intact and its contact is of high quality, it is necessary to change the oxygen regulator itself.
P0031 (ECM 2810)	Low signal detected on the control and power lines of the primary lambda probe heater. The problem is in the first bank of the engine and may consist in power surges.
P0032 (ECM 2810)	High voltage level on the power line of the heating element of the oxygen regulator. The secondary lambda probe and its wiring are subject to diagnosis.
P0042	Malfunctions of the heating mechanism. Probably damage to the wire connected to the oxygen controller 3 installed in the first bank of the motor.
P0044	The microprocessor module reports a critically high signal level on the line connected to the oxygen heating sensor 3
P0056 (ECM 2B20)	Failure of the secondary oxygen sensor located in the second bank of the power unit
P0137 (ECM 2A0A)	Code 0137 or 137 indicates failure of the rear oxygen regulator
P0154 (ECM 290A)	Lack of activity of the output pulse of the primary oxygen regulator located in the first motor bank
P0157 (ECM 2B0A)	The pulse supplied to the control module from the secondary oxygen controller located in the second bank of the engine does not correspond to the normalized parameters and is outside the permissible range
P0165	Slow response of the third oxygen regulator to the enrichment or depletion of the combustible mixture. The problem should be sought in the second bank of the power unit.
P0166	The lack of activity of the output pulse of the oxygen controller 3 located in the second bank of the engine
P0167	This Volvo error code indicates a malfunction or malfunction of the heating element of the third oxygen sensor located in bank 2 of the power unit
P1138	Malfunction of the oxygen sensor, which led to the incorrect formation of the air-fuel mixture in the engine cylinders. Check wiring and contact quality.
P2188	Failure of the oxygen controller adjustment system installed in the front row of the engine

The code	ABS Traction System Errors
A030	Lack of initialization of the CAN data bus
C0001	Malfunction of the control valve And the brake system
E000	The central electronic module of the anti-lock brake system is defective
E003	Powertrain control module malfunctioning
The code	Wiring related errors
DIM 0002	Damage to the power line or an error in the current circuit of the signal indicator of the anti-lock brake system
DIM 0003	Circuit malfunction or current error of the airbag warning indicator line installed on the dashboard
DIM 0005	The general red light on the dashboard is faulty or its circuit is damaged
P0111	Damage to the cable connected to the intake air temperature controller. The signal coming from the controller goes beyond the permissible parameters.
P0121, P0122, P0123 (ECM 9150)	Throttle Position Sensor A Throttle Assembly Fault : 0121 - an error signal; 0122 - critically weak signal; 0123 - pulse is too high.
P0177	The pulse of the CHx emission controller is out of range
P0180	Damage to the power line or circuit fault due to short circuit in the fuel temperature controller A
P0200	Damage or breakage in the wiring supplying one or more nozzles
P0213	Defective or broken cold start nozzle control line 1
P0216	Malfunctions of the injection control line
P0700	Code P0700 indicates a malfunction in the environmental indicator TCM
The code	Description of errors in the operation of communication systems
E000	Internal malfunction or communication failure with the motor control module
E003	Erroneous impulse or error in the configuration of the motor control module
TCM 0A31	Lost Communication between TCM Transmission Modules and ECM
ECM 530D	Speed signal error, critically low impulse
ECM 644A	Malfunction of the camshaft control module
BCM 0094	Lack of communication with all-wheel drive electronics. The problem should be sought in the digital interface, module or battery.
BCM 0100	A malfunction associated with the operation of the electronic stabilization system. An error is reported in establishing communication with the microprocessor control module of the power unit.
ECM 7100	Lost Communication With Engine Blocker. Possible reasons: failure of the immobilizer control module; communication failure with the antenna module; damage to the battery or battery in the device; malfunction of the transponder or electronic key; oxidation of contacts on one of the devices of the engine blocking system.
ECM 7300	Lost Communication With Selected Gear Controller
P0124	This code can be displayed as a combination of 124 and indicate problems with communication between the control unit and the anti-skid system
P1618	Loss of interconnection and incorrect transmission of signals arriving on the BUS- bus
U0001	High speed recorded during data transfer via digital CAN interface
U0401	Code U 040168 is connected with a communication failure when exchanging data via the CAN interface
The code	Faults in the Volvo XC90 door control module since 2002
DDM 000B	Failure or failure of the power window relay for lowering the window
000C	Internal error of the control unit, the problem may be programmatic
000D	The electric motor of the central device for closing door locks is defective
DDM 001A	Critically low signal coming to the engine control unit from the front left door lock
002D	Malfunction of the external mirror heating device, the problem is a critically low signal
002E	The problem is the operation of the exterior mirror heating system, the impulse is very high and is out of range
DDM 002F	The electric motor for rearranging the mirror is defective, a critically high signal is supplied to the control module
DDM 003B	The window activator installed in the driver's door is defective
DDM 0044	Outside mirror lamp defective, high signal to control unit
E001	Malfunction in the data bus CAN control module door
The code	Transmission malfunctions
ECM 002F	Slippage or inability to activate the torque converter of an automatic transmission for cars 1999, 2008 and other years of production. Possible causes of the problem: the use of low-quality fuel in the transmission unit; the presence of water in the gearbox oil; poor-quality contact on the wires connected to the transmission; solenoid S 4 boxes or SLU stuck in the disconnected position; mechanical malfunctions in the operation of the transmission.

ECM 5100	Malfunctions in the operation of the gearbox control module, an incorrect signal is supplied from the device
P0218	Overheating of the transmission unit. Possible causes of the problem: clogged radiator of the cooling system; deterioration of consumables as a result of prolonged use of oil; towing another vehicle or trailer in a car with automatic transmission; slippage in snow or mud. If the error is not accidental, it is accompanied by the following symptoms: the appearance of tremors when switching speeds; the smell of a burnt transmission fluid; difficulty switching speeds; gear shifting is carried out when driving at high speeds; an overheat icon appears on the dashboard if one is provided.
The code	Three-digit self-diagnosis error codes
017	Code 17 indicates a reduced level of refrigerant in the refrigeration system. It is necessary to stop the car and turn off the engine, there is a danger of damage to the unit.
021	Incorrect calibration of the oil level sensor installed in the motor, possibly poor contact of the device with the mains or damage to the power line
025	Code 25 - a general combination that does not indicate a specific malfunction, it appears in case of any malfunctions
042	Malfunction of the mass air flow controller
056	Failures in the operation of the stabilization system during skidding
063	Short circuit on the potentiometer control line
104	The need for headlight service
106	Parktronic malfunctions. There may be a communication failure with the parking system control unit or a malfunction of one of the sensors.
111	No malfunctioning vehicle systems
112	Short circuit to the battery on the control and power lines in the electromagnetic device S 1
113	Malfunctions or incorrect functioning of the control module of the transmission unit
114	Power line break or short circuit to battery in the mode switch
121	A short to ground in the electromagnetic device S 1 or malfunctions associated with the operation of the control module
122	Damaged or broken power line in valve S 1
123	Short circuit to battery in STH valve
124	Malfunction of the mode switching device, probably a short circuit to ground
131	A power line break or a short to body on the STH power supply circuit . The appearance of this code may be due to malfunctions in the microprocessor.
132	Failures in the control unit of the transmission unit
134	Incorrect load impulse in the fuel system
141	Short circuit to ground in the engine fluid temperature controller
142	Open circuit power and oil temperature sensor control
143	Short circuit or open circuit switch control line option « kick down »
147	A malfunction in the fixation system of the "blind" zones, the problem may concern the parking radar
160	Malfunction of the blind spot detection system
163	General DTC Indicating a Problem with the Vehicle
167	The vehicle’s dynamic stabilization system is not functioning properly
169	Low engine fluid level
211	Failures in the operation of the transmission control module, the problem may be poor connection or damage to the contacts on the power cable
213	The increased impulse coming from the throttle position mechanism

221	The control device detected a short circuit to ground in the solenoid valve S 2 or malfunctions in the functioning of the microprocessor module
222	Open on the supply line and valve control S 2
223	Critically low impulse out of normal range, fixed on throttle control line
231	Irregular signal from throttle position controller
232	Microprocessor module does not receive a signal from the speedometer
233	The impulse from the speedometer is out of range
235	Critically high oil temperature
245	Short circuit or break on the line of connection to the torque mechanism
311	Lack of a pulse of frequency of rotation of the crankshaft of the power unit with a transmission
312	Invalid engine rotation signal with transmission
313	Incorrect pulse from controller of selected gearbox speed
321	Shifting too slow
322	Wrong gear ratio
323	Slip or inability to activate the locking sleeve
331	The microprocessor has detected a short circuit to the battery on the solenoid control line marked SL
332	Control module malfunctions or solenoid valve line break SL
333	SL valve malfunction . The problem is a control device or a short to ground
460	The need for routine vehicle maintenance
The code	Description of service messages
34	The fuel filler neck is open in the car
35	Additional heater activated
36	Vehicle full security mode enabled
37	The auxiliary heater is switched off due to low battery voltage
38	Additional heater is turned off due to reduced fuel volume in the tank
40	Critically high motor temperature
41	Tells c I need to stop the engine as a result of overheating
42	High engine temperature, there is the possibility of serious damage.
43	Immobilizer malfunction
44	The message about the open left door in the car (rear)
45	The battery is low or a weak voltage has been detected in the vehicle’s mains as a result of a generator malfunction
46	High engine speed, a possible idle speed sensor malfunction
47	Failure of the standard anti-theft device
51	The front right door is open or a dead lock is installed on it
52	Failure or malfunction of the power steering. If the system sensor and control unit are operational, it is necessary to check the power steering fluid level in the tank under the hood. A problem may be a consumable leak due to damage to the nozzles or loosening of hose clamps.
56	Failures in the functioning of the stabilization system when skidding
57	Malfunctions in the operation of airbags, diagnostics of sensors and wiring, as well as the control module are required
58
59	Malfunctions in the engine, starting the unit is prohibited
74	On Volvo 740 cars and other versions, this message indicates the activation of the additional heating timer after a certain time interval
75	The activation of the heating system. The malfunction may lie in the wiring or operation of the control module. First of all, it is necessary to check the integrity and functionality of the relay or fuse.
77	Report on the need for urgent maintenance of the power system
The code	Description of truck errors with MID 144 control unit
29th	Malfunction of the accelerator pedal controller number 2. The signal from the controller to the control unit does not correspond to the normalized values. This problem is only diagnosed on vehicles equipped with dual controls.

46	Incorrect air pressure in the primary receiver. This error is diagnosed only on cars with air suspension. Possible causes of the problem: High pressure in the receiver. The problem may be a malfunction of the discharge valves of the compressor device in the unit head, damage to the wiring of the discharge solenoid valve in the dryer. Also, the reason may be the air pressure controller. A pulse with a voltage of less than 3.1 V is supplied from the sensor to the control module. Broken wiring or shorted contacts. Failure of valve elements located in the head of the compressor device, the elements could be stuck in the closed position.
84	Incorrect signal about the speed of the car. The difference between the pulses from the tachograph can be critically high. The problem often is the wiring or malfunction of the speed controller.
86	Problems in the operation of the cruise control system associated with a malfunction of the module or transmitting signal sensors via the SAE information channel
91	Incorrect position of the gas pedal, it is important to check all sensors and wiring
150	Power take-off of the power unit. It is necessary to check the integrity of the power cable of the electromagnetic valve for activating the draft selection system. Possible oxidation of the contacts on the connectors, as well as a break in the conductor between the valve and the control unit.
152	Internal software failure. When such an error occurs, the option to restart the control module by the vehicle is activated.
The code	Description of faults on trucks with MID 140 control unit
PID 96	Malfunctioning fuel level controller. Possible causes of the problem: The resistance level at the outputs B13 and A12 of the control module of the instrument cluster was more than 1 kOhm. The problem is a break in the signal or negative cable, oxidation or damage to the contact elements on the block. Possible failure of the controller itself. The resistance value on pins B13 and A12 of the wire from the control panel module to the controller in the tank is more than 20 Ohms. The problem is the regulator itself or the circuit of the signal line to ground.
PID 114	Ammeter malfunctioning. The reason may be in the signal conductor.
PID 117	Front air pressure controller malfunction
PID 118	Failure or malfunction of the rear air flow pressure sensor
PID 158	The battery voltage level is over 31 volts. If the device for starting the engine is not connected, then the problem must be sought in the battery itself or in the generator set.
PID 171	Outside temperature sensor defective or damaged power cable
PID 177	Malfunctions or failure of the transmission fluid temperature controller in the box. If the sensor is functional, the cause of the problem may be a poor contact between the device and the wiring or damage to the cable. Sometimes an error occurs when using low-quality grease.
PID 252	Information about the date or time supplied from the control module of the car or the tachograph module via the data channel is incorrect or completely absent
The code	Description of car errors with MID 130
PID 31	Incorrect position of the demultiplier cylinder. The problem must be sought in the operation of the sensor installed in the gearbox control housing.
PID 32	Malfunction in the system for determining the position of the cylinder divider. Possible reasons: short circuit on the regulator line to the battery; a break in the power line of the controller; short circuit of the divider sensor circuit to ground; the controller is not calibrated.
PID 33	Clutch cylinder position sensor malfunction. Most often, the problem is the lack of calibration of the regulator.
PID 36	Clutch disc wear is out of range
PID 37	Faulty sensor for fixing the level of air pressure. The device is located in the transmission unit. The problem may be due to the fact that the air pressure level is outside the acceptable range of 4.5-9.2 bar.
PID 124	Reduced transmission fluid in gearbox
PID 127	Low transmission lubrication pressure
PID 158	Incorrect voltage appearing at the input to the control module from batteries
PID 160	Malfunction of the shaft speed controller in the gearbox. The cause of the problem may be an inappropriate signal level coming from the regulator. If the sensor is operable, the cause may be damage to the wiring or loss of voltage.
PID 161	Failure or malfunction of the input shaft speed sensor
PID 177	Transmission fluid temperature is not normal
PID 190	The speed of the power unit is not normal
PID 191	Invalid output shaft speed