Flashing fault codes

To display the fault codes, it is necessary to turn off the engine, turn the ignition switch to the "I" position and turn on the diagnostic mode with the diagnostic check switch.

If there are no active faults, the stop lamp and warning alarm remain on, but do not blink. But if active fault codes are present, the ECU starts flashing fault codes.

Before the start of flashing the fault code, the warning alarm lamp turns on, after it is turned off, the ECU displays (blinks) with the stop lamp the number of the active fault code (short pauses indicate the end of the sign).

Switching on the warning lamp again means that the stop lamp starts showing (flashing) the next number of the active fault code (the function of separating the subsequent fault code from the previous one).

The ECU continues to display the fault code until the user uses the diagnostic switch to switch the fault code to the next or previous one.

The control system uses three- and four-digit fault codes.

The diagnostic mode remains active until the diagnostic switch is turned off, or until the engine is turned on.

The previous article reviewed the tables of fault codes (see the beginning of the article - Diagnostics of the Cummins ISF3.8 engine).

In this article, the continuation of the code tables:

code

System

Result

Conditions for the appearance of the code

Possible fault location

686

turbocharger shaft speed sensor

the signal is different from the preset, intermittent or incorrect

The electronic control unit detected an incorrect signal from the turbocharger speed sensor

Does not affect the work.

The electronic control unit approximately calculates the rotational speed of the turbocharger.

- turbocharger shaft speed sensor.

- Motor wiring.

- Power supply or grounding of the electronic control unit.

- Electrical appliances with strong electromagnetic radiation.

687

turbocharger shaft speed sensor

- data below the normal operating range, the average level of restriction

The electronic control unit detected a low speed of the turbocharger shaft

Power reduction. The electronic control unit approximately calculates the rotational speed of the turbocharger.

- turbocharger shaft speed sensor.

- Motor wiring.

- Electronic control unit.

688

engine oil level sensor - data above the normal operating range, high level of restriction

the engine oil level sensor detected a high engine oil level

It is possible to reduce power, excessive smoking, oil damage, contamination or serious damage to the engine. Engine performance may decrease.

- Oil overflow after its replacement.

- Fuel leaks into the engine oil.

- Coolant leaks into the engine oil.

689

Crankshaft position sensor - the signal is different from the preset, intermittent or incorrect

The signal from the crankshaft position sensor is lost

the engine may run unevenly. A difficult start is possible. The engine operates using an auxiliary position sensor. Power reduction.

- Breakage or short circuit of the 5 V power supply wire, signal wire or mass wire in the motor wiring.

- Damage or malfunction of the engine speed sensor.

691

air temperature sensor in front of the compressor - high level in the circuit

Short circuit of the air temperature sensor circuit in front of the compressor

Power reduction

- Ground wire breakage in the harness, connectors or sensor.

- Breakage or short circuit to the power supply of the signal wire.

- Sensor damage.

692

air temperature sensor in front of the compressor - low level in the circuit

Low voltage circuit closure of the air temperature sensor circuit in front of the compressor

Power reduction

- Short circuit to the mass of the signal wire.

- Short circuit to the mass wire or the mass of the signal wire in the sensor.

- Sensor damage.

693

air temperature sensor in front of the compressor - the signal is different from the preset, intermittent or incorrect

The signal of the air temperature sensor in front of the compressor is too low or too high for the given operating conditions

standard values of the air temperature sensor in front of the compressor are used for operation

- The sensor readings are fixed in the same range.

- High resistance in the sensor circuit.

697

temperature sensor of the electronic control unit -

high level in the chain

Power short circuit or circuit breakage of the temperature sensor of the electronic control unit

Does not affect the operation

Electronic control unit

698

temperature sensor of the electronic control unit - low level in the circuit

A short circuit to a low voltage circuit or an open circuit of the temperature sensor of the electronic control unit

Does not affect the operation

Electronic control unit

699

temperature sensor of the electronic control unit - the signal is different from the preset, intermittent or incorrect

Incorrect or unstable data from the temperature sensor of the electronic control unit

Does not affect the operation

Electronic control unit

731

crankshaft and camshaft position sensors - misalignment, mechanical system does not respond or cannot be adjusted

The signals of the crankshaft and camshaft position sensors are mismatched

Engine performance will be reduced. Possible difficult start-up and uneven idling.

- Sensor rotor.

- Installation of the sensor or rotor.

778

crankshaft and camshaft position sensors - the signal is different from the preset, intermittent or incorrect

The electronic control unit detected the loss of the signal of the camshaft position sensor

the engine may run unevenly. A difficult start is possible. the engine operates using the main position sensor.

- Breakage or short circuit of the 5 V power supply wire, signal wire or mass wire in the motor wiring.

- Damage or malfunction of the camshaft position sensor.

1117

Deviations with the ignition key in the ON position - the signal is different from the preset, intermittent or incorrect

The power supply voltage of the electronic control unit instantly dropped below 6.2 V DC or the electronic control unit does not correctly reduce the voltage (after turning the ignition key in the OFF position, the battery voltage remains for 30 seconds)

There may be minor deviations in operation, or the engine stalls or a difficult start. The following information may not be displayed correctly: fault codes, travel data, and maintenance data.

Power supply of the electronic control unit

1228

Electric valve drive of the EGR system - the signal is different from the preset, intermittent or incorrect

Unreliable data is received from the EGR valve position sensor or the sensor readings do not change when the engine is running

Engine performance will be reduced. The electronic control unit will try to close the electric valve drive of the EGR system.

- Periodic short circuit or breakage in the circuit.

- EGR valve position sensor.

- Electronic control unit.

- EGR valve. blocked or broken.

1239

accelerator pedal position sensor (channel #2) - high level in the circuit

Short circuit of the accelerator pedal position sensor circuit (channel #2)

A serious reduction in engine power. "Get home" mode.

- Short circuit to the power supply (12 V or 5 V) of the signal wire of the accelerator pedal position sensor.

- Mass wire breakage.

- Short circuit of the power supply wire to the power supply.

- accelerator pedal position sensor.

1241

accelerator pedal position sensor (channel #2) - low level in the circuit

Low voltage circuit closure of the accelerator pedal position sensor circuit (channel No. 2)

Serious reduction in engine power. "Get home" mode.

- Short circuit of the signal wire to the mass or the mass wire.

- accelerator pedal position sensor.

- Wiring or connector breakage.

1242

accelerator pedal position sensors (No. 1 and No. 2) - the signal is different from the preset, intermittent or incorrect

accelerator pedal position sensors 1 and 2 give inconsistent signals

the engine only idles

- accelerator pedal position sensor (No. 1 and No. 2).

- Closing of signal wires (channels No. 1 and No. 2).

1668

liquid level sensor of the toxicity reduction system - low level in the circuit

Low voltage circuit closure of the liquid level sensor circuit of the toxicity reduction system

The liquid of the toxicity reduction system is not supplied to the toxicity reduction system

- Breakage or short-circuit to the mass of the signal wire in the wiring or sensor.

- Breakage or short circuit to the ground of the power supply circuit.

1668

liquid level sensor of the toxicity reduction system - low level in the circuit

Low voltage circuit closure of the liquid level sensor circuit of the toxicity reduction system

The liquid of the toxicity reduction system is not supplied to the toxicity reduction system

- Breakage or short-circuit to the mass of the signal wire in the wiring or sensor.

- Breakage or short circuit to the ground of the power supply circuit.

1669

liquid level sensor of the toxicity reduction system - high level in the circuit

Short circuit of the liquid level sensor circuit of the toxicity reduction system

The liquid of the toxicity reduction system is not supplied to the toxicity reduction system

- Ground wire breakage in the harness, connectors or sensor.

- The signal wire is closed for power.

1671

liquid level sensor of the toxicity reduction system - data below the normal operating range, the average level of restriction

A low level of the toxicity reduction system liquid in the tank was recorded

Does not affect the operation

Low liquid level of the toxicity reduction system in the tank

1673

liquid level sensor of the toxicity reduction system - data below the normal operating range, high level of restriction

A low level of the toxicity reduction system fluid in the tank was recorded

The liquid of the toxicity reduction system is not supplied to the toxicity reduction system. Reduced instantaneous engine power.

There is no liquid of the toxicity reduction system in the tank

1677

liquid temperature sensor of the toxicity reduction system - low level in the circuit

Low voltage circuit closure of the liquid temperature sensor circuit of the toxicity reduction system

The set temperature in the liquid tank of the toxicity reduction system is used

- Short circuit to the mass of the signal wire.

- Short circuit to the mass wire or the mass of the signal wire.

1678

liquid temperature sensor of the toxicity reduction system - high level in the circuit

Short circuit of the liquid temperature sensor circuit of the toxicity reduction system

The set temperature in the liquid tank of the toxicity reduction system is used

- Ground wire breakage in the harness, connectors or sensor.

- Breakage or short circuit to the power supply of the signal wire.

1679

liquid temperature sensor of the toxicity reduction system - the signal is different from the preset, intermittent or incorrect

the liquid temperature sensor of the toxicity reduction system shows too high or too low a temperature that does not correspond to the outdoor temperature

The set temperature of the liquid of the toxicity reduction system is used

- The sensor readings are fixed in the same range.

- Wiring damage.

- The control unit of the liquid dispenser of the toxicity reduction system.

1681

liquid dispenser of the toxicity reduction system - malfunction of the control unit or component

An internal error was detected in the liquid dispenser control unit of the toxicity reduction system

The liquid of the toxicity reduction system is not supplied to the toxicity reduction system

Liquid dispenser control unit of the toxicity reduction system

1682

Intake lines of the liquid dispenser control unit of the toxicity reduction system - condition

the liquid dispenser of the toxicity reduction system cannot ensure the correct dosing of liquid (urea) through the nozzle

The liquid of the toxicity reduction system is not supplied to the toxicity reduction system

- It is impossible to initialize the liquid dispenser control unit of the toxicity reduction system when the ignition is turned on.

- Urea crystals in the dispenser interfere with the passage of air into the nozzle and the formation of growths in the nozzle itself is possible.

- Malfunction of the liquid pressure sensor.

- Malfunction of the poppet valve.

- Contamination of the dispenser check valve.

- Air suction through connections or damaged mains.

- The channel of the inlet fitting of the dispenser is blocked or narrowed.

1683

Liquid heater of the toxicity reduction system - high level in the circuit

Short circuit of the liquid heater circuit of the toxicity reduction system

There is no heating of the liquid of the toxicity reduction system

- The signal wire is not connected to the relay of the liquid heater of the toxicity reduction system.

- The ground wire is not connected to the relay of the liquid heater of the toxicity reduction system.

- Liquid heater relay of the toxicity reduction system.

- An open circuit in the relay of the liquid heater of the toxicity reduction system.

- Short circuit of the heater signal wire to the power supply.

1684

Liquid heater of the toxicity reduction system - low level in the circuit

Low voltage circuit closure of the liquid heater circuit of the toxicity reduction system

There is no heating of the liquid of the toxicity reduction system

- Short circuit of the liquid heater relay of the toxicity reduction system.

- Short circuit of the heater signal wire to the ground.

1688

Liquid dispenser control unit of the toxicity reduction system - malfunction of the control unit or component

An internal error of the liquid control unit of the toxicity reduction system was detected

The liquid of the toxicity reduction system is not supplied to the toxicity reduction system

Liquid dispenser control unit of the toxicity reduction system

1689

Interrupting the power supply of the real-time clock - the signal is different from the preset, intermittent or incorrect

No real-time clock power

Does not affect the work. The data in the electronic control unit does not contain the exact time and date.

- Backup battery.

- Wiring and connectors.

1694

NOx sensor at the output of the toxicity reduction system - the signal is different from the preset, intermittent or incorrect

Unreliable data received from the sensor at the exit of the toxicity reduction system

the NOx sensor at the exit of the toxicity reduction system is turned off. The engine torque is reduced.

- The electronic control unit has determined that the NOx content readings are higher or lower than possible.

- Leaks in the release system.

- Installation of the NOx sensor

- Carbon deposits on the sensor sensor element

- Increased engine oil consumption.

- Ignition omissions.

- Unsuitable sensor

1695

Sensor power supply circuit 5 - high level in the circuit

Short circuit to the power supply of the sensor circuit No. 5

Serious reduction in engine power. "Get home" mode.

Power short circuit

1696

Sensor power supply circuit 5 - low level in the circuit

Short circuit to the low voltage circuit of the sensor supply circuit No. 5

A serious reduction in engine power. "Get home" mode.

Ground closure

1711

liquid dispenser of the toxicity reduction system - abnormal refresh rate

Communication between the electronic control unit and the liquid dispenser of the toxicity reduction system is interrupted

The liquid of the toxicity reduction system is not supplied to the toxicity reduction system

- There is no supply of the liquid dispenser of the toxicity reduction system.

- There is no grounding of the liquid dispenser of the toxicity reduction system.

- An open or short circuit in the SAE J19Z9 data channel.

- liquid dispenser of the toxicity reduction system.

1712

Liquid heater of the toxicity reduction system - data below the normal operating range, the average level of restriction

The heater cannot melt the liquid of the toxicity reduction system

Does not affect the operation. The liquid supply of the toxicity reduction system to the toxicity reduction system can be turned off if it is frozen.

- The control valve of the tank heater remains locked in the closed position.

- Blocking or narrowing of the coolant channel in the tank heater.

- Low coolant level.

- The control valve of the tank heater.

- There is no signal to turn on the tank heating from the dispenser control unit.

1713

Liquid heater of the toxicity reduction system - data above the normal operating range, the average level of restriction

The liquid heater of the toxicity reduction system is always on

Does not affect the operation

- The control valve of the tank heater remains locked in the open position.

- Leaks through the seat of the control valve of the tank heater.

- A constant signal is sent from the dispenser control unit to turn on the heating of the tank.

1843

crankcase pressure sensor - high level in the circuit

Short circuit of the crankcase pressure sensor circuit

Does not affect the operation

- Ground wire breakage in the harness, connectors or sensor.

- The signal wire is closed for power.

1844

crankcase pressure sensor - low level in the circuit

Low voltage circuit closure of the crankcase pressure sensor circuit

Does not affect the operation

- Breakage or short-circuit to the mass of the signal wire in the wiring or sensor.

- Breakage or short circuit to the ground of the power supply circuit.

1848

boost pressure sensor and air temperature sensor assembly - abnormal refresh rate

The readings of the intake manifold temperature sensor No. 1 do not change when the engine is running

The electronic control unit approximately calculates the temperature in the intake manifold

- The sensor readings are fixed in the same range.

- High resistance in the sensor circuit.

1852

The indicator of the presence of water in the fuel filter - data above the normal operating range, the average level of restriction

Excess water level detected in the fuel filter

Does not affect the operation

Water in the fuel filter

1887

NOx sensor at the output of the toxicity reduction system - low level in the circuit

Low voltage circuit closure of the NOx sensor circuit at the output of the toxicity reduction system

the engine may not start

- The voltage applied to the NOx sensor is below 18 V.

- The voltage applied to the NOx sensor is higher than 32 V.

- NOx sensor

- NOx sensor heater.

- Unsuitable NOx sensor

1898

The drive for changing the geometry of the turbocharger is outside the adjustment limits

When the ignition is switched on, the turbocharger geometry change drive cannot perform automatic calibration

Low intake pressure. There is no open position of the turbine blade drive.

- Incorrect installation of the drive on the turbocharger housing.

- The presence of foreign particles can interfere with the movement of the blades when the ignition is turned on.

1911

fuel pressure sensor 1 - data above the normal operating range, high level of restriction

The electronic control unit has determined that the pressure in the fuel accumulator is higher than the set

Does not affect or may cause noise associated with increased injection pressure (especially at idle or under low load) or a sharp decrease in power associated with pressure relief by the pressure reducing valve

- Air in the fuel system.

- Fuel filter.

- Wiring and connectors.

- fuel pressure sensor No. 1.

- Fuel supply control valve.

- High-pressure fuel tubes.

- Rechargeable battery.

1938

Turbocharger geometry change drive, outgoing signal - data below the normal operating range, average limit level

Low voltage is determined by the turbocharger geometry change drive

Does not affect the operation

The voltage on the turbocharger geometry change drive is below 10 V

1942

crankcase pressure sensor - the signal is different from the preset, intermittent or incorrect

The electronic control unit recorded unreliable data from the crankcase pressure sensor when the ignition is turned ON or when the engine is running

Does not affect the operation

- High resistance in the sensor circuit.

- The sensor readings are fixed in the same range.

- the sensor is not installed correctly.

1943

Ambient air density - data below the normal operating range, low level of restriction

The engine torque has been reduced since the car is high above sea level

Engine performance may decrease

The car is located high above sea level

1962

Turbocharger geometry change drive - overheating, data above the normal operating range, low restriction level

The high internal temperature of the turbocharger geometry change drive was determined (above 125° for more than 30 minutes)

Does not affect the operation

- The temperature of the turbocharger geometry change drive is above 125° for more than 30 minutes.

- Exhaust gas leaks into the turbocharger geometry change drive.

2182

Motor brake drive 1 - high level in the circuit

Power short circuit of the motor brake drive 1

The engine brake on cylinders No. 1, 2, 3 cannot be activated

- A break in the chain.

- Power short circuit.

- Electronic control unit.

2183

Motor brake drive No. 1 - low level in the circuit

Low voltage circuit closure of the motor brake drive circuit No. 1

The engine brake on cylinders No. 1, 2, 3 cannot be activated

Ground closure

2185

Sensor supply circuit 4 - high voltage

Short circuit to the power supply of the sensor supply circuit No. 4. High voltage is detected in the power supply circuit of the accelerator pedal position sensor.

Idling only

Power short circuit

2186

Sensor supply circuit 4 - low voltage

Short circuit to the low voltage circuit of the sensor supply circuit 4. Low voltage is detected in the power supply circuit of the accelerator pedal position sensor.

Idling only

Ground closure

2198

Turbocharger geometry change drive - the main reason is unknown

There is no connection between the turbocharger geometry change drive and the electronic control unit. The turbocharger geometry change drive cannot correctly interpret the J19Z9 signal from the electronic control unit.

The turbocharger geometry change drive is disabled

- Multiplex SAE J1939 bus.

- Wiring of the turbocharger geometry change drive.

2265

Fuel supply pump - high level in the circuit

Power short circuit or fuel supply pump circuit break

the engine can start with difficulty

- A break in the chain.

- Power short circuit.

2266

Fuel supply pump - low level in the circuit

Low voltage circuit closure of the fuel supply pump circuit

the engine can start with difficulty

- Ground closure.

- Fuel freezing.

- Jamming of the fuel pump rotor.

2271

Electric valve drive of the EGR system - high level in the circuit

Power short circuit of the EGR valve position sensor

The position of the EGR valve is not taken into account

- Ground circuit breakage.

- The signal wire is closed for power.

- EGR valve position sensor.

- Electronic control unit.

2272

Electric valve drive of the EGR system - low level in the circuit

Low voltage circuit closure of the EGR valve position sensor circuit

The position of the EGR valve is not taken into account

- breakage or short circuit of the signal wire to the ground.

- Breakage or short circuit of the power supply wire to the ground.

- Short circuit of the sensor to the ground.

2288

turbocharger shaft speed sensor

- data above the normal operating range, low level of restriction

The electronic control unit recorded a high speed of rotation of the turbocharger shaft

Engine power is reduced to reduce the turbocharger shaft speed

The extremely high speed of the turbocharger shaft rotation has been reduced by the electronic control unit

2311

Electromagnetic fuel supply control valve - condition

The resistance of the electromagnetic valve of the fuel supply control is too high or too low, or a periodic disconnection is recorded

the engine will run unevenly with reduced power

- High resistance of the electromagnetic fuel supply control valve.

- High resistance of the motor wiring.

- The terminals of the electronic control unit or the electromagnetic fuel supply control valve have weakened, worn out or oxidized.

- Low resistance of the electromagnetic fuel supply control valve.

- Short circuit to the mass of the valve or motor wires.

2321

crankshaft position sensor - the signal is different from the preset, intermittent or incorrect

Interruption of data transmission of the crankshaft position sensor

There may be ignition gaps associated with the transition from working with the main to working with the auxiliary sensor. Power reduction, as the engine is running using auxiliary sensor data.

- Open or short circuit in the circuit, poor connection of the sensor.

- The gap between the sensor and the rotor is too large or small, or the ovality of the rotor is too large.

2322

camshaft position sensor - the signal is different from the preset, intermittent or incorrect

Interruption of data transmission of the camshaft position sensor

Does not affect the operation

- Open or short circuit in the circuit, poor connection of the sensor.

- The gap between the sensor and the rotor is too large or small, or the ovality of the rotor is too large.

2345

Turbocharger shaft speed sensor - abnormal refresh rate

turbocharger shaft speed sensor No. 1 shows an erroneous speed value

Does not affect the work. The electronic control unit approximately calculates the rotational speed of the turbocharger shaft.

- Connecting the sensor.

- The gap between the sensor and the rotor is too large or small.

- turbocharger shaft speed sensor.

2346

Temperature in front of the turbine - data above the normal operating range, low level of restriction

The temperature in front of the turbine is above the engine protection limit

Limiting the fuel supply in order to reduce the temperature at the turbine inlet

Engine power has been reduced to lower the temperature in front of the turbine

2347

Compressor outlet temperature - data above the normal operating range, low restriction level

The high temperature at the compressor outlet is calculated by the electronic control unit

Limiting the fuel supply in order to reduce the temperature at the compressor outlet

- Air leaks that allow hot air to enter the intake from the engine compartment.

- Incorrect boost pressure data.

- data on the high speed of the turbocharger shaft.

- atmospheric pressure sensor.

- The turbocharger is jammed.

2351

Electric valve drive of the EGR system - low level in the circuit

Low voltage circuit closure of the EGR valve circuit

Power reduction is possible. The electric motor of the EGR valve is not supplied with power.

Ground closure

2352

Electric valve drive of the EGR system - high level in the circuit

EGR valve circuit short circuit

Power reduction is possible. The electric motor of the EGR valve is not supplied with power.

Power outage or short circuit

2357

The electric drive of the EGR system valve - the mechanical system does not react or goes beyond the adjustment limits

The electric drive of the EGR valve is locked in the open position

The electric drive of the EGR system valve is disconnected

- EGR valve position sensor.

- Damage (blocking or jamming) of the electric drive of the EGR valve system requires an increased current for the valve to work

2363

Motor brake drive 2 - low level in the circuit

Low voltage circuit closure of the motor brake drive circuit 2

The engine brake on cylinders No. 4, 5, 6 cannot be activated

- Ground closure.

- Electronic control unit.

2367

Motor brake drive No. 2 - high level in the circuit

Power short circuit of the motor brake drive No.2

The engine brake on cylinders No. 4, 5, 6 cannot be activated

- Circuit break.

- Power short circuit.

- Electronic control unit.

2369

Mountain brake drive - low level in the circuit

Low voltage circuit closure of the mountain brake drive circuit

Does not affect the operation

Ground closure

2371

Mountain brake drive - high level in the chain

Short circuit to the power supply of the mountain brake drive circuit

Does not affect the operation

Power short circuit

2373

exhaust gas pressure sensor - high level in the circuit

Short circuit of the exhaust gas pressure sensor circuit

Does not affect the operation

- Ground wire breakage in the harness, connectors or sensor.

- The signal wire is closed for power.

2374

exhaust gas pressure sensor - low level in the circuit

Low voltage circuit closure of the exhaust gas pressure sensor circuit

Does not affect the operation

- Breakage or short-circuit to the mass of the signal wire in the wiring or sensor.

- Breakage or short circuit to the ground of the power supply circuit.

2377

The electric motor of the cooling system fan is a high level in the circuit

Power short circuit of the cooling system fan motor

The fan is constantly on or not working

- Circuit breakage of the cooling system fan motor.

- Power short circuit.

- Electronic control unit.

2387

The drive for changing the geometry of the turbocharger - the mechanical system does not react or goes beyond the adjustment limits

The turbine blade drive controller has detected an incorrect stop threshold or the drive does not move to the closing position

The movement of the drive may be limited

Large charge air leaks

2398

outdoor temperature sensor - the signal is different from the preset, intermittent or incorrect

the outdoor temperature sensor gives incorrect readings

The electronic control unit approximately calculates the outdoor temperature

- The sensor readings are fixed in the same range.

- High resistance in the sensor circuit.

- Electronic control unit.

2442

Nozzle 1 - no calibration

Incorrect correction code of the nozzle has been entered

Does not affect the operation

Incorrect correction code of the nozzle has been entered

2443

Nozzle 2 - no calibration

Incorrect correction code of the nozzle has been entered

Does not affect the operation

Incorrect correction code of the nozzle has been entered

2444

Nozzle 3 - no calibration

Incorrect correction code of the nozzle has been entered

Does not affect the operation

Incorrect correction code of the nozzle has been entered

2445

Nozzle 4 - no calibration

Incorrect correction code of the nozzle has been entered

Does not affect the operation

Incorrect correction code of the nozzle has been entered

2448

coolant level sensor - data below the normal operating range, low level of restriction

Low coolant level is determined

Does not affect the operation

Low coolant level

2449

Turbocharger geometry change drive - no calibration

When the ignition is switched on, the turbocharger geometry change drive cannot perform automatic calibration

Low intake pressure. There is no open position of the turbine blade drive.

- The turbocharger geometry change drive is incorrectly installed.

- The presence of foreign particles can interfere with the movement of the blades when the ignition is turned on.

2451

Exhaust gas inlet temperature to the turbine - data above the normal operating range, the average level of restriction

The temperature in front of the turbine is above the engine protection limit

Restriction of fuel supply in order to reduce the temperature at the turbine inlet

- Low boost pressure.

- Engine power has been reduced to lower the temperature in front of the turbine.

- Leaks in the exhaust gas recirculation (EGR) system.

2555

Heater 1

intake air - high level in the circuit

Short circuit of the intake air heater circuit 1

Inlet air heater 1 is on or off all the time

- The signal wire is not connected to the intake air heater relay.

- The ground wire is not connected to the intake air heater relay.

- Breakage in the circuit of the signal wire of the air heater relay at the inlet.

- A break in the circuit of the grounding wire of the air heater relay at the inlet.

- Short circuit of the signal wire to the power supply.

2556

Intake air heater 1 - low level in the circuit

Short circuit of the low voltage circuit of the intake air heater 1

Inlet air heater 1 is on or off all the time

- Short circuit in the relay.

- Short circuit of the relay power supply wire to the ground.

2634

The drive for changing the geometry of the turbocharger is a malfunction of the control unit or component

An internal error of the turbine blade drive controller has been detected

The turbocharger geometry change drive is disabled

Internal error of the turbine blade drive controller

2635

Turbocharger geometry change drive - state

Calibration mismatch between the turbine blade drive controller and the electronic control unit

The turbocharger geometry change drive is disabled

An unsuitable turbocharger geometry change drive is installed

2636

Turbocharger geometry change drive - abnormal refresh rate

There is no communication via the J1939 protocol between the electronic control unit and the turbine blade drive controller

The drive will move to the default opening position

- There is no power supply to the turbocharger geometry change drive from the electronic control unit.

- Wire breakage of the mass of the drive for changing the geometry of the turbocharger.

- Multiplex SAE J1939 bus.

- Fast cyclic ignition on/off.

- Electronic control unit.

2771

sensor at the exit of the toxicity reduction system - abnormal update rate

There is no connection or incorrect data according to the J1939 protocol between the electronic control unit and the NOx sensor at the exit of the toxicity reduction system

the NOx sensor at the exit of the toxicity reduction system is turned off

- There is no power supply to the sensor from the electronic control unit.

- Ground wire breakage.

- Open or short circuit in the Multiplex SAE J1939 bus.

- Electronic control unit.

2772

NOx sensor at the output of the toxicity reduction system - data above the normal operating range, low level of restriction

The NOx content in the exhaust gases is higher than the recommended level

Does not affect the operation

- The amount of liquid in the toxicity reduction system is below normal.

- Liquid leaks of the toxicity reduction system in the dispenser or lines.

- Damage to the dispenser nozzle.

- High sulfur content in the fuel.

-. The dispenser nozzle is partially or completely clogged.

- The catalyst of the toxicity reduction system is damaged or missing.

2773

sensor at the exit of the toxicity reduction system - data above the normal operating range, high level of restriction

The content in the exhaust gases is higher than the recommended level

the NOx sensor at the exit of the toxicity reduction system is turned off. Engine performance will be reduced, the next time the car speed will be reduced to 0.

- The amount of liquid in the toxicity reduction system is below normal.

- Liquid leaks of the toxicity reduction system in the dispenser or lines.

- Damage to the dispenser nozzle.

- High sulfur content in the fuel.

- The dispenser nozzle is partially or completely clogged.

- The catalyst of the toxicity reduction system is damaged or missing.

2963

coolant temperature sensor - coolant temperature protection, low restriction level

The coolant temperature is higher than normal

Power reduction. It is possible to stop the engine if a protective stop is allowed.

High coolant temperature

2964

boost pressure sensor and air temperature sensor assembly - data above the normal operating range, high level of limitation

The signal of the air temperature sensor in the intake manifold indicates that the air temperature exceeds the critical limit of engine protection

Sequential power reduction depending on the alarm activation time

- The charge air cooler fins are clogged.

- Increased resistance in the charge air intercooler.

- The charge air intercooler is too small.

- High temperature at the compressor outlet.

2973

boost pressure sensor and air temperature sensor assembly - the signal is different from the preset, intermittent or incorrect

the data of the boost pressure sensor in the intake manifold is unreliable when the ignition is turned on or while the engine is running

The indicator (MIL) lights up and the engine performance may decrease

- boost pressure sensor and air temperature sensor assembly.

- atmospheric pressure sensor.

- Leaks between the compressor and the intake manifold.

- Increased resistance in the charge air intercooler.

- turbocharger shaft speed sensor.

- air temperature sensor in front of the compressor.

- Wiring damage.

2976

temperature sensor of the liquid dispenser of the toxicity reduction system - the signal is different from the preset, intermittent or incorrect

An internal error of the liquid dispenser of the toxicity reduction system was detected

The liquid of the toxicity reduction system is not supplied to the toxicity reduction system

The temperature sensor readings of the liquid dispenser of the toxicity reduction system do not correspond to other temperature sensors

3142

temperature sensor at the inlet of the exhaust gas toxicity reduction system - high level in the circuit

Power supply circuit of the temperature sensor at the inlet of the exhaust gas toxicity reduction system the default value is used for the temperature sensor at the inlet of the exhaust gas toxicity reduction system

- Ground circuit breakage.

- Breakage or short circuit to the power supply of the signal wire.

3143

temperature sensor at the inlet of the exhaust gas toxicity reduction system - low level in the circuit

Low voltage circuit closure of the temperature sensor circuit at the inlet of the exhaust gas toxicity reduction system

the default value is used for the temperature sensor at the inlet of the exhaust gas toxicity reduction system

- Short circuit to the mass of the signal wire.

- Short circuit of the sensor to the mass wire or mass.

3144

temperature sensor at the inlet of the exhaust gas toxicity reduction system - the signal is different from the preset, intermittent or incorrect

The readings of the temperature sensor at the inlet of the exhaust gas toxicity reduction system do not change when the engine is running

the default value is used for the temperature sensor at the inlet of the exhaust gas toxicity reduction system

- The sensor readings are fixed in the same range.

- High resistance in the sensor circuit.

3145

temperature sensor at the catalyst inlet of the exhaust gas toxicity reduction system - abnormal update rate

The temperature sensor readings at the catalyst inlet of the exhaust gas toxicity reduction system do not change when the engine is running

the default value is used for the temperature sensor at the catalyst inlet of the exhaust gas toxicity reduction system

- The sensor readings are fixed in the same range.

- High resistance in the sensor circuit.

3146

temperature sensor at the outlet of the exhaust gas toxicity reduction system - high level in the circuit

Short circuit of the temperature sensor circuit at the outlet of the exhaust gas toxicity reduction system

the default value is used for the temperature sensor at the outlet of the exhaust gas toxicity reduction system

- Ground wire breakage in the harness, connectors or sensor.

- Breakage or short circuit to the power supply of the signal wire.

3147

temperature sensor at the outlet of the exhaust gas toxicity reduction system – low level in the circuit

Low voltage circuit closure of the temperature sensor circuit at the outlet of the exhaust gas toxicity reduction system

the default value is used for the temperature sensor at the outlet of the exhaust gas toxicity reduction system

- Short circuit to the mass of the signal wire.

- Short circuit to the mass wire or the mass of the signal wire.

3149

temperature sensor at the outlet of the exhaust gas toxicity reduction system - abnormal update rate

The readings of the temperature sensor at the outlet of the exhaust gas toxicity reduction system do not change when the engine is running

the default value is used for the temperature sensor at the outlet of the exhaust gas toxicity reduction system

- The sensor readings are fixed in the same range.

- High resistance in the sensor circuit.

3151

Catalyst of the exhaust gas toxicity reduction system - not detected

The catalyst of the exhaust gas toxicity reduction system was not found in the exhaust system

The liquid of the toxicity reduction system is not supplied to the toxicity reduction system

- Incorrect calibrations.

- The catalyst of the toxicity reduction system is damaged or missing.

3163

temperature sensor at the inlet of the exhaust gas toxicity reduction system - replacement, no calibration

temperature sensors at the inlet and outlet of the exhaust gas toxicity reduction system have been replaced

The liquid of the toxicity reduction system is not supplied to the toxicity reduction system

The connectors of the intake and exhaust sensors are mixed up during installation

3164

temperature sensor at the inlet of the exhaust gas toxicity reduction system - data above the normal operating range, low level of restriction

A high temperature was detected at the inlet of the exhaust gas toxicity reduction system

Possible reduction of engine performance

High temperature at the inlet of the exhaust gas toxicity reduction system

3236

temperature sensor at the outlet of the exhaust gas toxicity reduction system - data above the normal operating range, the average level of restriction

A high temperature was detected at the outlet of the exhaust gas toxicity reduction system

The liquid of the toxicity reduction system is not supplied to the toxicity reduction system

High temperature at the outlet of the exhaust gas toxicity reduction system

3237

Heater 1 of the liquid lines of the exhaust gas toxicity reduction system - high level in the circuit

Short circuit of the heater circuit 1 of the liquid lines of the exhaust gas toxicity reduction system

Heater 1 of the liquid lines of the exhaust gas toxicity reduction system is switched off

- Heater.

- Power short circuit.

- Electronic control unit.

3238

Heater 1 of the liquid lines of the exhaust gas toxicity reduction system - low level in the circuit

Low voltage circuit closure of the heater circuit 1 of the liquid lines of the exhaust gas toxicity reduction system

Heater 1 of the liquid lines of the exhaust gas toxicity reduction system is switched off

- Heater.

- Heater relay.

- Ground closure.

- Electronic control unit.

3239

Heater of 2 liquid lines of the exhaust gas toxicity reduction system - high level in the circuit

Short circuit to the heater circuit of 2 liquid lines of the exhaust gas toxicity reduction system

The heater of 2 liquid lines of the exhaust gas toxicity reduction system is switched off

- Heater.

- Short circuit to the power supply of the wiring of the dispenser control unit.

- Dispenser control unit.

3242

Liquid heater of the toxicity reduction system - the mechanical system does not react or goes beyond the adjustment limits

The temperature of the liquid of the toxicity reduction system does not increase when the heater of the liquid tank of the toxicity reduction system is switched on

Does not affect the work. When freezing, the liquid of the toxicity reduction system may not be supplied to the toxicity reduction system.

- The control valve of the tank heater remains locked in the closed position.

- Blocking or narrowing of the coolant channel in the tank heater.

- Low coolant level.

- The control valve of the tank heater.

- There is no signal to turn on the tank heating from the dispenser control unit.

3258

Heater 1 of the liquid lines of the exhaust gas toxicity reduction system - low level in the circuit

Low voltage circuit closure of the heater circuit 1 of the liquid lines of the exhaust gas toxicity reduction system

Heater 1 of the liquid lines of the exhaust gas toxicity reduction system is switched off

- Heater.

- Heater relay.

- A circuit break or a ground fault or a blown fuse in the circuit of the dispenser control unit.

- Dispenser control unit.

3261

Heater of 2 liquid lines of the exhaust gas toxicity reduction system - low level in the circuit

Low voltage circuit closure of the heater circuit of 2 liquid lines of the exhaust gas toxicity reduction system

The heater of 2 liquid lines of the exhaust gas toxicity reduction system is switched off

- Heater.

- Heater relay.

- A circuit break or a ground fault or a blown fuse in the circuit of the dispenser control unit.

- Dispenser control unit.

3326

accelerator pedal position sensor SAE J1939 - abnormal refresh rate

The electronic control unit waits for a signal from the accelerator pedal position sensor, but does not receive it fast enough, or does not receive it at all

the engine only idles

Multiplex SAE J1939 bus

3382

Exhaust gas recirculation system - data below the normal operating range, average level of restriction

The measured exhaust gas recirculation is less than the set value

Possible reduction of engine performance

- Leakage or obstruction of the exhaust gas flow of the EGR system.

- Internal leaks of the EGR valve.

- The EGR valve is locked in the closed position.

- differential pressure sensor of the EGR system.

3383

Exhaust gas recirculation system - data above the normal operating range, average level of restriction

The measured exhaust gas recirculation is greater than the set value

Possible reduction of engine performance

- Throttle valve drive.

- EGR valve leaks.

- air flow sensor.

3422

Heater of 3 liquid lines of the exhaust gas toxicity reduction system - high level in the circuit

Short circuit to the heater circuit of 3 liquid lines of the exhaust gas toxicity reduction system

The heater of the 3 liquid lines of the exhaust gas toxicity reduction system is switched off

- Heater.

- Short circuit to the power supply of the wiring of the dispenser control unit.

- Dispenser control unit.

3425

Heater of 3 liquid lines of the exhaust gas toxicity reduction system - low level in the circuit

Ground fault or circuit break of the heater of 3 liquid lines of the exhaust gas toxicity reduction system

The heater of the 3 liquid lines of the exhaust gas toxicity reduction system is switched off

- Heater.

- Heater relay.

- Ground closure.

- Dispenser control unit.

3426

Heater of 4 liquid lines of the exhaust gas toxicity reduction system - high level in the circuit

Short circuit to the heater circuit of 3 liquid lines of the exhaust gas toxicity reduction system

The heater of the 4 liquid lines of the exhaust gas toxicity reduction system is switched off

- Heater.

- Short circuit to the power supply in the circuit of the dispenser control unit.

- Dispenser control unit.

3429

Heater of 4 liquid lines of the exhaust gas toxicity reduction system - low level in the circuit

Ground fault or circuit break of the heater of 4 liquid lines of the exhaust gas toxicity reduction system

The heater of the 4 liquid lines of the exhaust gas toxicity reduction system is switched off

- Heater.

- Breakage or short-circuit to the mass of the circuit of the dispenser control unit.

- Dispenser control unit.

3539

The electric motor of the throttle valve drive is a high level in the circuit

Power short circuit of the throttle position sensor

Power reduction is possible. No power will be supplied to the throttle motor.

- Ground circuit breakage.

- Grounding of the signal wire to the power supply.

- throttle position sensor.

- Electronic control unit.

3541

Throttle motor - low level in the circuit

Low voltage circuit closure of the throttle position sensor circuit

Power reduction is possible. No power will be supplied to the throttle motor.

- breakage or short-circuit to the mass of the signal wire.

- Breakage or short circuit to the ground of the power supply wire.

- Short circuit of the sensor to the ground.

3542

Throttle motor - the signal is different from the preset, intermittent or incorrect

Incorrect data is received from the throttle position sensor or the position of the throttle actuator does not change when the engine is running

Possible reduction of engine performance

- Periodic breakage or short circuit in the wiring.

- throttle position sensor.

- The throttle motor is blocked or damaged.

- Electronic control unit.

3548

liquid dispenser of the toxicity reduction system - no primary injection

the dispenser cannot perform primary injection

The liquid of the toxicity reduction system is not supplied to the toxicity reduction system

- Low level of the toxicity reduction system fluid in the tank.

- Low air pressure in the dispenser.

- The air filter lines are clogged or narrowed.

- The dispenser lines of the toxicity reduction system are blocked, narrowed, frozen or leaking.

- the dispenser is delivered through a weakened or damaged connector or line.

3557

Liquid dispenser control unit of the toxicity reduction system

- the signal is different from the set one, intermittent or incorrect

The liquid dispenser control unit of the toxicity reduction system detected a signal level too high or too low

The liquid of the toxicity reduction system is not supplied to the toxicity reduction system

Liquid dispenser control unit of the toxicity reduction system

3558

liquid dispenser of the toxicity reduction system - high level in the chain

Short circuit to the circuit of the liquid dispenser control unit of the toxicity reduction system

The liquid of the toxicity reduction system is not supplied to the toxicity reduction system

- Short circuit to the power supply of the liquid dispenser of the toxicity reduction system.

- Short circuit to the supply circuit of the dispenser control unit.

- Dispenser control unit.

3559

liquid dispenser of the toxicity reduction system - low level in the circuit

Low voltage circuit closure of the circuit of the liquid dispenser control unit of the toxicity reduction system

The liquid of the toxicity reduction system is not supplied to the toxicity reduction system

- Short circuit to the mass of the liquid dispenser of the toxicity reduction system.

- Short circuit to the mass of the dispenser control unit circuit.

- Dispenser control unit.

3561

liquid dispenser of the toxicity reduction system - low level in the circuit

Breakage in the dispenser circuit

The liquid of the toxicity reduction system the liquid of the toxicity reduction system is not supplied to the toxicity reduction system

- Breakage in the dispenser circuit.

- Breakage in the circuit of the dispenser control unit.

- Dispenser control unit.

3562

The heater relay of the liquid lines of the exhaust gas toxicity reduction system is a high level in the circuit

Short circuit of the relay circuit of the heater of the liquid lines of the exhaust gas toxicity reduction system

Heaters of 1, 2, 3 liquid lines of the exhaust gas toxicity reduction system are switched off

- Short circuit to the heater relay circuit.

- Short circuit to the supply circuit of the dispenser control unit.

- Dispenser control unit.

3563

Liquid Line Heater Relay of exhaust Gas Toxicity Reduction System - low level in the circuit

Low voltage circuit closure of the heater relay circuit of the liquid lines of the exhaust gas toxicity reduction system

Heaters of 1, 2, 3 liquid lines of the exhaust gas toxicity reduction system are switched off

- Short circuit to the mass of the heater relay circuit.

- Short circuit to the mass of the dispenser control unit circuit.

- Dispenser control unit.

3564

Liquid Line Heater Relay of Exhaust Gas Toxicity Reduction System - low current

Circuit break or low current in the circuit of the heater relay of the liquid lines of the exhaust gas toxicity reduction system

Heaters of 1, 2, 3 liquid lines of the exhaust gas toxicity reduction system are switched off

- An open circuit in the heater relay.

- Breakage in the circuit of the dispenser control unit.

- Dispenser control unit.

3565

The valve of the liquid dispenser of the exhaust gas toxicity reduction system is a high level in the circuit

Short circuit of the valve circuit of the liquid dispenser of the exhaust gas toxicity reduction system

The liquid of the toxicity reduction system is not supplied to the toxicity reduction system

- Short circuit to the supply circuit of the dispenser valve.

- Short circuit to the supply circuit of the dispenser control unit.

- Dispenser control unit.

3566

The valve of the liquid dispenser of the exhaust gas toxicity reduction system is a low level in the circuit

Short circuit of the valve circuit of the liquid dispenser of the exhaust gas toxicity reduction system

The liquid of the toxicity reduction system is not supplied to the toxicity reduction system

- Short circuit to the mass of the dispenser valve circuit.

- Short circuit to the mass of the dispenser control unit circuit.

- Dispenser control unit.

3567

Liquid Dispenser Valve of Exhaust Gas Toxicity Reduction System - low current

Open circuit or low current in the circuit of the liquid dispenser valve of the exhaust gas toxicity reduction system

The liquid of the toxicity reduction system is not supplied to the toxicity reduction system

- Breakage in the dispenser valve circuit.

- Breakage in the circuit of the dispenser control unit.

- Dispenser control unit.

3568

Liquid dispenser valve of the exhaust gas toxicity reduction system - the mechanical system does not respond or cannot be adjusted

A mechanical malfunction of the liquid dispenser valve of the exhaust gas toxicity reduction system was detected

The liquid of the toxicity reduction system is not supplied to the toxicity reduction system

The valve of the liquid dispenser of the exhaust gas toxicity reduction system

3569

Liquid Dispenser lines of exhaust Gas toxicity Reduction System

A violation of the fluid supply of the exhaust gas toxicity reduction system was detected

The liquid of the toxicity reduction system is not supplied to the toxicity reduction system

- The dispenser nozzle is blocked or partially clogged.

- The dispenser nozzle lines are blocked or narrowed.

- Dispenser control unit.

3571

liquid pressure sensor of the exhaust gas toxicity reduction system - high level in the circuit

Short circuit of the liquid pressure sensor circuit of the exhaust gas toxicity reduction system

The liquid of the toxicity reduction system is not supplied to the toxicity reduction system

- Short circuit of the signal wire to the power supply.

- Wiring of the dispenser control unit.

- Dispenser control unit.

3572

liquid pressure sensor of the exhaust gas toxicity reduction system - low level in the circuit

Low voltage circuit closure of the liquid pressure sensor circuit of the exhaust gas toxicity reduction system

The liquid of the toxicity reduction system is not supplied to the toxicity reduction system

- Short circuit of the signal wire to the ground.

- Wiring of the dispenser control unit.

- Dispenser control unit.

3574

liquid pressure sensor of the exhaust gas toxicity reduction system - data below the normal operating range, the average level of restriction

the dispenser recorded a low fluid pressure of the exhaust gas toxicity reduction system

The liquid of the toxicity reduction system may not be supplied to the toxicity reduction system

- Low level of the toxicity reduction system fluid in the tank.

- The dispenser lines of the toxicity reduction system are blocked, narrowed or frozen.

- The filter of the liquid tank of the toxicity reduction system is blocked or clogged.

- The liquid dispenser filter of the toxicity reduction system is blocked or clogged.

- The connectors of the liquid lines of the toxicity reduction system are blocked or clogged.

- The liquid of the toxicity reduction system is contaminated.

- liquid dispenser of the toxicity reduction system.

3575

liquid pressure sensor of the exhaust gas toxicity reduction system - data above the normal operating range, the average level of restriction

the dispenser has fixed the blocking of the liquid return line of the exhaust gas toxicity reduction system

The liquid of the toxicity reduction system may not be supplied to the toxicity reduction system

- The return line of the liquid of the toxicity reduction system is blocked or narrowed.

- liquid dispenser of the toxicity reduction system.

3576

Liquid tank heater of the exhaust gas toxicity reduction system - low level in the circuit

Circuit breakage of the control valve of the liquid tank heater of the exhaust gas toxicity reduction system

The heater of the liquid tank of the exhaust gas toxicity reduction system is turned off

- Circuit breakage of the dispenser control unit.

- The control valve of the tank heater.

- Dispenser control unit.

3577

The return valve of the liquid of the exhaust gas toxicity reduction system is a high level in the circuit

Short circuit of the return valve circuit of the liquid of the exhaust gas toxicity reduction system

The return valve of the liquid of the exhaust gas toxicity reduction system is disabled. The exhaust gas toxicity reduction system is not cleaned.

- Return valve of the liquid of the exhaust gas toxicity reduction system.

- Wiring and connectors.

3578

Liquid return valve of the exhaust gas toxicity reduction system - low level in the circuit

Low voltage circuit closure of the liquid return valve circuit of the exhaust gas toxicity reduction system

The return valve of the liquid of the exhaust gas toxicity reduction system is disabled. The exhaust gas toxicity reduction system is not cleaned.

- Return valve of the liquid of the exhaust gas toxicity reduction system.

- Wiring and connectors.

3579

Liquid return valve of the exhaust gas toxicity reduction system - low current

Circuit breakage of the liquid return valve of the exhaust gas toxicity reduction system

The return valve of the liquid of the exhaust gas toxicity reduction system is disabled. The exhaust gas toxicity reduction system is not cleaned.

- Return valve of the liquid of the exhaust gas toxicity reduction system.

- Wiring and connectors.

3596

liquid pressure sensor of the exhaust gas toxicity reduction system - the signal is different from the preset, intermittent or incorrect

the liquid pressure sensor of the exhaust gas toxicity reduction system outputs values that are too high or too low

The liquid of the toxicity reduction system is not supplied to the toxicity reduction system

- Leakage of liquid lines of the exhaust gas toxicity reduction system.

- liquid dispenser of the toxicity reduction system.

3597

Liquid dispenser control unit of the toxicity reduction system

- abnormal refresh rate

Communication between the electronic control unit and the control unit of the liquid dispenser of the toxicity reduction system is interrupted

The liquid of the toxicity reduction system is not supplied to the toxicity reduction system

- There is no power supply to the liquid dispenser control unit of the toxicity reduction system.

- There is no mass on the liquid dispenser control unit of the toxicity reduction system.

- Multiplex SAE J1939 bus.

- Dispenser control unit.

3598

Liquid dispenser control unit of the toxicity reduction system

- error of the received data

the data received by the electronic control unit from the liquid dispenser control unit of the toxicity reduction system is unreadable or missing

The liquid of the toxicity reduction system is not supplied to the toxicity reduction system

- Electronic control unit.

- Engine calibrations are broken.

- Dispenser control unit.

- Calibration of the dispenser control unit is broken.

- The presence of active engine codes or sensors of the toxicity reduction system, which send the data necessary to control the dosing of the liquid of the toxicity reduction system.

3612

liquid dispenser of the toxicity reduction system - the mechanical system does not respond or cannot be adjusted

Incomplete power off was detected in the toxicity reduction system

Does not affect the operation

After stopping the engine, the cleaning cycle of the liquid supply elements of the toxicity reduction system was not completed

3616

the position sensor of the turbine blade change drive - the mechanical system does not respond or cannot be adjusted

The drive control unit for changing the position of the blades has detected incorrect stop limits or the drive cannot move to the closing position

Changing the position of the blades may be limited

- The turbocharger blades did not occupy the required position.

- Large charge air leaks.

3648

temperature sensor of the liquid dispenser control unit of the toxicity reduction system - data above the normal operating range, the average level of restriction

The temperature inside the liquid dispenser control unit of the toxicity reduction system is above the permissible limits

The liquid of the toxicity reduction system is not supplied to the toxicity reduction system

- Incorrect direction of the cooling air flow of the dispenser control unit.

- Incorrect installation of the dispenser control unit.

- Dispenser control unit.

3651

temperature sensor of the liquid tank of the toxicity reduction system - data below the normal operating range, the average level of restriction

The temperature in the liquid tank of the toxicity reduction system does not reach the desired value

The liquid of the toxicity reduction system is not supplied to the toxicity reduction system

- Blocking or narrowing of the coolant channel in the tank heater.

- The coolant hose for heating the liquid tank of the toxicity reduction system is disconnected or damaged.

- The control valve of the tank heater remains locked in the closed position.

- temperature sensor of the liquid tank of the toxicity reduction system.

- Operation at very low ambient temperature.

3679

liquid dispenser of the toxicity reduction system - the main reason is unknown

Initialization error of the liquid dispenser control unit of the toxicity reduction system

The liquid of the toxicity reduction system is not supplied to the toxicity reduction system

- Open or short circuit.

- liquid dispenser of the toxicity reduction system.

3681

Power supply of the NOx sensor at the output of the toxicity reduction system - the signal is different from the preset, intermittent or incorrect

The power supply value of the sensor does not correspond to the nominal value

Does not affect the operation

- Short circuit to power or ground.

- sensor

3697

Electronic control unit - memory calibration

Internal error of the electronic control unit associated with a software failure

the engine may not start

Electronic control unit

3713

Liquid line heater relay of exhaust gas toxicity reduction system - mechanical system does not respond or cannot be adjusted

Short circuit to the power supply of the heater circuit of the liquid lines of the exhaust gas toxicity reduction system

Heaters of 1,2,3 liquid lines of the exhaust gas toxicity reduction system are switched off

- The heater relay is permanently closed.

- Short circuit to the power supply of the wiring between the relay and the heater.

3726

NOx sensor at the input of the toxicity reduction system - data above the normal operating range, the average level of restriction

the liquid dispenser of the toxicity reduction system cannot fulfill the request for liquid supply to adequately reduce NOx

Does not affect the operation

liquid dispenser of the toxicity reduction system

3735

SAE J1939 data channel - abnormal update period

Communication between the electronic control unit and other devices via the SAE J1939 data channel is lost

The engine speed will gradually decrease and remain at idle

- SAE J1939 data bus.

- External control unit of the vehicle's auxiliary equipment.

- Electronic control unit.

3736

The control unit of the liquid dispenser of the toxicity reduction system - the main reason is unknown

Unintended data exchange between the electronic control unit and the control unit of the liquid dispenser of the toxicity reduction system

The liquid of the toxicity reduction system is not supplied to the toxicity reduction system

- SAE J1939 data bus.

- Electronic control unit.

- Engine calibrations are broken.

- Dispenser control unit.

- Calibration of the dispenser control unit is broken.

3749

sensor at the output of the toxicity reduction system - the data is irrational, there is a big difference

the NOx sensor data at the output of the toxicity reduction system does not change when the engine is running

Does not affect the operation

- The NOx sensor is removed.

- NOx sensor

3866

liquid level sensor of the toxicity reduction system - data above the normal operating range, high level of restriction

The liquid level of the toxicity reduction system is less than the maximum permissible

The engine torque will be automatically reduced after 36 hours

- Unsuitable liquid of the toxicity reduction system.

- liquid level sensor of the toxicity reduction system.

- diesel fuel in the liquid tank of the toxicity reduction system.

3867

liquid level sensor of the toxicity reduction system - data above the normal operating range, the average level of restriction

The liquid level of the toxicity reduction system is less than the maximum permissible

The engine torque will be automatically reduced after 36 hours

- Unsuitable liquid of the toxicity reduction system.

- liquid level sensor of the toxicity reduction system.

3868

liquid level sensor of the toxicity reduction system - abnormal refresh rate

There is no connection of the electronic control unit with the liquid level sensor of the toxicity reduction system via the J1939 bus

The engine torque will be automatically reduced

- There is no power supply for the liquid level sensor of the toxicity reduction system.

- Ground wire breakage of the liquid level sensor of the toxicity reduction system.

- An open or short circuit in the SAE J1939 bus circuit between the sensor and the electronic control unit.

- Periodically there is no communication via the SAE J1939 bus between the sensor and the electronic control unit.

3876

Liquid level sensor of the toxicity reduction system – the mechanical system does not respond or cannot be adjusted

The liquid level sensor of the toxicity reduction system does not detect liquids

The engine torque will be automatically reduced after 36 hours

- The liquid level sensor of the toxicity reduction system is incorrectly installed.

- Low liquid level of the toxicity reduction system.

- liquid level sensor of the toxicity reduction system.

- The liquid of the toxicity reduction system includes other liquids (diesel fuel, coolant, oil, etc.).

- The tank is filled with water.

- The temperature of the liquid outside the limits of the measurement of the liquid level sensor of the toxicity reduction system.