Scania EMS Fault codes

EMS 9259

2098547, 2098546, 2098545, 2096902, 2096901

The temperature sensor, located after the diesel particulate filter (DPF), gives an incompatible value when pairing the three sensors. The test is carried out for 60 minutes while driving under load, but not during idling.

  • Malfunction of temperature sensors T158.
  • Oil or fuel leak in a silencer.
  • Malfunction of other sensors.
  1. Compare with SDP3 the values ​​of the temperature sensors (T158) taken from the muffler or at high idle, PTO 1000 1 / min. After the end of the stabilization period, all three sensors should produce similar values. If not, replace the appropriate item.
  2. Check for signs of leakage of oil and fuel in the exhaust pipe, between the engine and the muffler. Check with SDP3 the condition of the fuel system, in particular, possible injector malfunctions. A low engine oil level may indicate an oil leak.
  3. Remove the flexible pipe coming from the muffler and check if black or white smoke is released when the throttle is opened. White smoke indicates the presence of excess fuel, which may result in the registration of this DTC.
  4. To check the quality of the repair, let the engine run under load for 60 minutes.
Код ошибки:  Диагностический адаптер Ford VCM OBD купить в Москве | «ELM327rus»

EMS 5140

2098547, 2098546, 2098545, 2096902, 2096901, 9000000, 2089202, 2089201, 2089200

Back pressure in exhaust system

The back pressure in the exhaust system is too high when the fuel supply is normal.

The variable nozzle of the turbocharger with variable geometry stuck in the closed position. A malfunction may also be the result of a malfunction in the backpressure sensor in the exhaust system or in the atmospheric pressure sensor.

Perform this check only when the fuel supply is normal.

Engine torque is reduced to prevent engine damage.

The engine brake moderator helps to increase braking force. This fault may cause engine damage.

  1. Perform a lag check for a variable geometry turbocharger to ensure that the annular nozzle is stuck in the closed position.
  2. Make sure the EGR valve and the EGR cooler are not blocked. Make sure that in the turbocharger the compressor shaft and the wheel of the turbine wheel rotate with the creation of proper friction.
  3. Check back pressure sensor in exhaust system and atmospheric pressure sensor.
  4. Check the connectors and wiring.

EMS 9482

2098547, 2098546, 2098545, 2096902, 2096901, 9000000, 2089202, 2089201, 2089200

Oil level sensor

Malfunction oil level sensor.

The malfunction may be due to the fact that several different faults occur simultaneously in the oil level sensor.

The instrument panel does not show oil level or oil pressure. The control lamp of pressure of oil does not join.

Check the oil level sensor, electrical connectors and wiring.

EMS 8216

9000000, 2089202, 2089201, 2089200

Additional drive 14 (aux14), short circuit from low to +24

Reset is not defined.

EMS 5826

2098547, 2098546, 2098545, 2096902, 2096901

There was a malfunction that caused the engine speed to be fixed at the level of the idling speed. A fault code appears in combination with another fault code describing the nature of the fault.

There was a malfunction that caused the engine speed to be fixed at the level of the idling speed. A fault code appears in combination with another fault code describing the cause of the fault.

The fault code is deactivated after the fault has been rectified.

Check for other DTCs and correct the corresponding problems.

EMS 5647

2098547, 2098546, 2098545, 2096902, 2096901, 9000000, 2089202, 2089201, 2089200

The engine control unit

Failure of the control unit.

The engine control unit is faulty or has been exposed to an electromagnetic field (EMC).

While there is a fault, the car cannot start moving. The control system shuts off the fuel supply to the injectors.

  1. Clear the memory of the trouble codes and:
  2. turn off the ignition using the ignition key
  3. wait one minute
  4. Switch on the ignition with the ignition key.
  5. repeat five times. If this DTC is generated again, replace the control unit.

EMS 5479

2098547, 2098546, 2098545, 2096902, 2096901, 9000000, 2089202, 2089201, 2089200

Atmospheric pressure sensor

The atmospheric pressure sensor outputs a value that is higher or lower than expected. Differences in values ​​issued by the atmospheric pressure sensor, a pressure in the exhaust system and a charge air pressure sensor, is too large.

The atmospheric pressure sensor may be dirty or defective and thus indicates an incorrect value.

The engine control unit cannot compensate for differences in atmospheric pressure. As long as the fault code is present, the engine power can be reduced.

  1. Check the atmospheric pressure sensor, connectors and wiring.
  2. The engine is off, the voltage is turned on by the ignition key.
  3. Ensure that the atmospheric pressure sensor, backpressure sensor in the exhaust system and the charge air pressure sensor are the same. Otherwise, replace the sensor.
  4. Deactivate the trouble code by warming up the engine. Turn off the engine and turn on the power. Start the engine. The DTC will deactivate within 30 seconds.

EMS 8350

2098547, 2098546, 2098545, 2096902, 2096901

SCR main unit

Unreliable air pressure after throttle.

Unreliable air pressure after throttle.

Reagent injection is turned off.

  1. Turn off and turn on the onboard power supply with the ignition key. If this DTC persists, replace the control unit. Make sure the problem is resolved by turning off and on the power with the ignition key. If the fault is resolved, the fault code becomes inactive. Clear the fault code.
  2. Turn off and turn on the power three times at intervals of 10 seconds to deactivate the test lamp.

EMS 55

2098547, 2098546, 2098545, 2096902, 2096901, 9000000, 2089202, 2089201, 2089200

The voltage of the Lambda sensor heating system is too low.

Short to ground.

Torque is reduced to protect the engine.

Check the element, connectors and wiring. Replace lambda sensor.

EMS 9251

2098547, 2098546, 2098545, 2096902, 2096901

The fuel injected does not provide the intended temperature rise at the DOC oxidation catalyst.

  • The oxidative catalytic converter is missing, defective or worn. Rapid wear may occur due to the use of high-sulfur fuels.
  • Malfunction of exhaust gas temperature sensors T158.
  • Malfunction of other sensors.
  1. Check the EMS and EEC fault codes associated with the sensor malfunction and make the necessary repairs.
  2. Check for damage in the exhaust pipe between the engine and the silencer, which may cause leaks.
  3. Check that there is no damage to the oxidation catalytic converter, see the description of the procedure “Removing the filter”.
  4. To verify the effectiveness of the repair, perform a service regeneration procedure using SDP3. The temperature in the exhaust system is very high, it can reach 500 ° C.

EMS 14

2098557, 2098556, 2110163, 2110160, 2110164, 2110165, 2110166, 2110162, 2110116

Incorrect or unreliable data.

Internal malfunction in the control unit.

While there is a fault, the car cannot start moving.

Erase the trouble codes from the memory, then turn off the ignition with the ignition key and turn it on again. Does the trouble code remain active? In this case, replace the control unit.

EMS 5124

2110164, 2110165, 2110166, 2110162, 2110116

The engine control unit shuts down the EGR system and calibrates the mass flow sensor.

  1. Check diffuser and actuator cylinder.
  2. Check the tightness of the on-off valve.
  3. Check for pressure relief through the valve block.

EMS 5845

2098547, 2098546, 2098545, 2096902, 2096901

The value of the differential pressure sensor is more than permissible differs from 0 when the engine is off and the power is on. Without the exhaust gas flow rate, the pressure drop must be close to 0. The fault is set for one minute while the power is on.

Malfunction of the differential pressure sensor T141. Fault in the wiring harness or connectors. Faulty outdoor temperature sensor.

The engine warning light comes on.

  1. Check the outdoor temperature sensor fault code and correct the corresponding fault.
  2. Check the differential pressure sensor T141 with the power on and the engine off. The differential pressure should be close to 0. Start the engine and make sure that the value is different from 0 at high idle speed.
  3. Check the wiring harness between the differential pressure sensor and the control unit. Inspect the exhaust system for damage related to the sensor.
  4. If the sensor does not respond as described, replace it.
  5. To confirm the repair:
  6. If the engine is hot, leave it off for at least one hour and then turn on the power for at least one minute.
  7. If the engine is cold, turn on the power for at least one minute.

EMS 8261

2098547, 2098546, 2098545, 2096902, 2096901

SCR main unit

Exceeded lower temperature limit.

Internal malfunction in the main unit.

Reagent injection is turned off.

  1. Turn off the power with the key, wait 90 seconds and then turn it on again. If this DTC persists, replace the control unit.
  2. Make sure the problem is resolved by turning off the power with the ignition key, waiting 90 seconds and then turning it on again. If the fault is resolved, the fault code becomes inactive. Clear the fault code.
  3. Turn off and turn on the power three times at intervals of 10 seconds to deactivate the test lamp.

EMS 105

2098547, 2098546, 2098545, 2096902, 2096901

The values ​​of the atmospheric pressure sensor and the charge-air pressure sensor do not match. The atmospheric pressure sensor indicates a value higher than the value of the charge air pressure sensor.

Fault in the wiring harness or connectors.

  1. Compare the values ​​from all three pressure sensors: atmospheric pressure, charge air pressure and exhaust pressure.
  2. Make sure the engine is off, but the power is on. All three sensors should indicate the pressure corresponding to the current atmospheric pressure.
  3. Check wiring harness and sensor connectors.
  4. Replace the sensor or sensors deviating from the actual pressure.
  5. To acknowledge the validity of the DTC after the action has been completed, make sure that the engine is warm, turn on the power with the ignition key, wait 30 seconds and then start the engine. The invalidation of the fault code must be executed immediately.

EMS 8252

2098547, 2098546, 2098545, 2096902, 2096901

Short circuit in the level sensor circuit in the reagent tank.

Short circuit in the level sensor circuit in the reagent tank.

Reagent injection is turned off.

  1. Check the electrical components, electrical connectors and wiring.
  2. Sensor resistance should be 92 – 397 ohms.
  3. Make sure the problem is resolved by turning off the power with the ignition key, waiting 90 seconds and then turning it on again. If the fault is resolved, the fault code becomes inactive. Clear the fault code.
  4. Turn off and turn on the power three times at intervals of 10 seconds to deactivate the test lamp.

EMS 274

2098547, 2098546, 2098545, 2096902, 2096901

Air intake temperature sensor

Voltage in the air intake temperature sensor circuit is below acceptable level.

Short to ground.

This may affect engine power.

Check the intake air temperature sensor and its connectors and wiring.

Measure the resistance of the air intake temperature sensor. The electrical resistance should be approximately 2.5 kΩ at 20 ° C.

Measure the supply voltage of the air intake temperature sensor. With the sensor disconnected, the voltage should be approximately 5 V.

EMS 8204

2098547, 2098546, 2098545, 2096902, 2096901

The temperature in the area after the diesel particulate filter (DPF) is excessively high for regeneration. It is registered by a temperature sensor in the area after the filter in less than 2 minutes.

Leakage and oil or fuel entering the exhaust stream in front of the silencer. Temperature sensor malfunction T158.

  1. Check the EMS and EEC fault codes associated with the sensor malfunction and make the necessary repairs.
  2. Check for signs of leakage of oil and fuel in the exhaust pipe, between the engine and the muffler. Check with SDP3 the condition of the fuel system, in particular, possible injector malfunctions. A low engine oil level may indicate an oil leak.
  3. A malfunction in the differential pressure sensor can create an excessively high particulate load, as a result of which an excessively high temperature may occur during regeneration. Perform the following sensor test: When the power is on, the value should be approximately zero. Start the engine and make sure that the high idle speed value is different from zero.
  4. If the fault persists, check the wiring harness and connectors between the sensor and the control unit. Also ensure that there is no damage to the exhaust system, and the sensor piping is not blocked.
  5. If the problem persists, replace the sensor.
  6. To verify the effectiveness of the repair, perform a service regeneration procedure using SDP3. The temperature in the exhaust system is very high, it can reach 500 ° C.

EMS 8347

2098547, 2098546, 2098545, 2096902, 2096901

SCR main unit

Unreliable air pressure after throttle.

Unreliable air pressure after throttle.

Reagent injection is turned off.

  1. Turn off and turn on the onboard power supply with the ignition key. If this DTC persists, replace the control unit. Make sure the problem is resolved by turning off and on the power with the ignition key. If the fault is resolved, the fault code becomes inactive. Clear the fault code.
  2. Turn off and turn on the power three times at intervals of 10 seconds to deactivate the test lamp.

EMS 5809

2098547, 2098546, 2098545, 2096902, 2096901

Excessive temperature drop in the oxidation catalytic converter.

Too short time delay for the temperature to change before or after the oxidation catalytic converter. Installed in case of load changes of less than 60 minutes.

  • The oxidative catalytic converter is defective or missing.
  • Malfunction in exhaust gas temperature sensors T158.
  • Malfunction in other sensors.
  1. Check the trouble codes and troubleshoot the corresponding faults in the EMS and EEC regarding faults in the sensors.
  2. Do a search for damage that could lead to leaks in the exhaust system between the engine and the silencer.
  3. Ensure that the oxidation catalytic converter is in place and not damaged, see method “Removing and installing diesel particulate filter”.
  4. To confirm the repair, complete the journey on a car with various loads for 60 minutes.

EMS 150

2098547, 2098546, 2098545, 2096902, 2096901, 9000000, 2089202, 2089201, 2089200

Intake manifold air temperature sensor

Malfunction of the temperature sensor charge air

There may be a malfunction in the charge air temperature sensor or its wiring.

This may affect engine power. There is the danger of black smoke.

Check the electrical components, electrical connectors and wiring.

EMS 152

2098547, 2098546, 2098545, 2096902, 2096901, 9000000, 2089202, 2089201, 2089200

Intake manifold air temperature sensor

Faulty charge air temperature sensor.

Short to battery + (U30) or open circuit.

This may affect engine power. There is the danger of black smoke.

  1. Check the connectors and wiring of the charge air temperature sensor.
  2. Measure the sensor resistance. The electrical resistance should be approximately 2.5 kΩ at 20 ° C.

EMS 5642

2098547, 2098546, 2098545, 2096902, 2096901, 9000000, 2089202, 2089201, 2089200

The engine control unit received an internal fault message.

For information about the current software version, refer to the technical information (TI).

For information about the current software version, refer to the technical information (TI).

EMS 5883

2098547, 2098546, 2098545, 2096902, 2096901

NOx sensor after SCR catalytic converter

The NOx sensor after the SCR catalytic converter shows an incorrect value.

  • NOx sensor malfunction after SCR catalytic converter.
  • Crystallization of the reagent in the SCR system

The level of toxic vehicle emissions is increasing. NOx warning lamp is on.

Engine torque is reduced by approximately 40% after the engine has completed 36 hours.

  1. Check the SCR system for reagent crystals.
  2. If there are crystals in the SCR system, do the following:
  3. Remove the crystals.
  4. Get two new NOx sensors. Replace the NOx sensor after the SCR catalytic converter.
  5. Start the engine and let it run for 10 seconds. Then stop the engine.
  6. Replace the NOx sensor after the SCR catalytic converter. Repeat step 3.
  7. Install the original NOx sensor after the SCR catalytic converter. Repeat step 3.
  8. If the DTC has become inactive: Clear the DTC.
  9. Extinguish the test lamp by turning the ignition key off and on three times at 10-second intervals three times.
  10. If there are no crystals in the SCR system, replace the NOx sensor after the SCR catalytic converter. Clear the fault code. Extinguish the test lamp by turning the ignition key off and on three times at 10-second intervals three times.

EMS 8361

2110164, 2110165, 2110166, 2110162, 2110116

SCR – Main Unit

Internal malfunction in the main unit.

As a result of a fault, the SCR system shuts down and the reagent injection shuts down.

When the SCR system is turned off, fault codes 4108, 4106, and 4107 relating to data exchange with the SCR system can also be generated. Perform a primary troubleshooting using this fault code.

When the SCR system is disabled, the communication between the SCR control unit and the engine control unit can be interrupted. To ensure correct handling of the DTC, control units must be able to communicate with each other. Try to reestablish the connection, for which you should turn off the ignition, wait 90 seconds and turn on the ignition again.

The fault affects the emission of nitrogen oxides (NOx) by the car, and a warning lamp lights up in the instrument cluster, warning of a high level of pollutants. On vehicles with NOx control, a text message is also displayed.

Cars with NOx control

An active DTC limits the maximum engine torque to approximately 40%.

An active DTC cannot be deleted from the control unit. When the malfunction is resolved so that the malfunction code becomes inactive, the control unit must ensure that the malfunction has been eliminated.

  1. Switch off the ignition with the key, wait for 90 seconds and then turn it on again with the key. If the fault code becomes inactive, erase the code; If the DTC is still active, replace the main unit.
  2. Continue as follows to ensure that the problem is resolved:
  3. Turn off the ignition with the key, wait at least 90 seconds and then turn it on again with the key.
  4. If the fault is resolved, the fault code becomes inactive. Clear the fault code.
  5. To turn off the alarm, turn off and turn on the ignition with the ignition key three times in a row at 10-second intervals.

EMS 5377

2110164, 2110165, 2110166, 2110162, 2110116

The voltage of one of the sensors having a common power is below the set value.

With this fault, the engine torque is reduced by 30% while the fault code is active (confirmed).

Check sensors, connectors and wiring.

EMS 9730

2098547, 2098546, 2098545, 2096902, 2096901, 9000000, 2089202, 2089201, 2089200

The voltage in the circuit was outside the limits.

  • Short circuit to + battery ground wire; open circuit or short to ground in the power wire of the coolant pump electrical circuit.
  • Malfunction in the fan speed sensor circuit.

The coolant pump is running until it is turned off.

The fan speed sensor and the coolant pump have a common power supply. In the event of a fault in one of the elements, it may affect the electrical circuits of other elements.

  1. Check fan speed sensor and coolant pump with connectors and electrical wiring.
  2. Measure the resistance of the coolant pump electrical circuit.

EMS 112

2098547, 2098546, 2098545, 2096902, 2096901, 9000000, 2089202, 2089201, 2089200

Outside temperature sensor or temperature sensor before air intake to the impeller of the turbocharger

The outside temperature sensor indicates a too high value or the temperature sensor before intake of air to the impeller of the turbocharger shows a too low value.

  • outside temperature sensor or temperature sensor is faulty before air intake to the impeller of the turbocharger
  • cracks in the intake manifold

During this test, when the vehicle is moving, a comparison is made between the temperature reading from the outside temperature sensor and the temperature sensor before air intake to the impeller of the turbocharger. The check can be performed faster if the car is moving at a higher speed.

The EGR system turns off when the measured outside temperature is too low. In accordance with current legal requirements, engine power is reduced on vehicles that are equipped with NOx exhaust control.

The fault code cannot be cleared while the fault is present.

  1. Check the outside temperature sensor and the temperature sensor before air intake to the impeller of the turbocharger.
  2. Ensure that the pipeline between the turbocharger and the air filter is intact and not leaking.
  3. Clear the DTC by turning off the key with the key and wait 15 seconds. Start the engine and allow the car to move for more than 10 minutes at a speed above 40 km / h.

EMS 5682

2110164, 2110165, 2110166, 2110162, 2110116

Incorrect or unreliable data.

Internal malfunction in the control unit.

During the entire time when the detected fault appears, the fuel supply to the engine stops. If the fault period is sufficiently long, the engine may stop.

As a result, other trouble codes can be recorded in the memory of the control unit.

Clear the trouble codes and test drive the car for 10 minutes. The fault code remains active? If the code is written to memory again, replace the control unit.

EMS 8255

2110164, 2110165, 2110166, 2110162, 2110116

SCR – Level in the reagent tank

The amount of reagent in the tank below the permissible value.

Or too little reagent in the tank or a level sensor in the tank is faulty.

As a result of a fault, the injection of the reagent is turned off.

The fault affects the emission of nitrogen oxides (NOx) by the car, and a warning lamp lights up in the instrument cluster, warning of high levels of pollutants. On vehicles with NOx control, a text message is also displayed.

Cars with NOx control

An active DTC limits the maximum engine torque to approximately 40%.

An active DTC cannot be deleted from the control unit. When the malfunction is resolved so that the malfunction code becomes inactive, the control unit must ensure that the malfunction has been eliminated.

  1. For troubleshooting the SCR system, refer to the Scania Multi 03-25 “Exhaust System, SCR (Selective Catalytic Reduction)” section.
  2. Refill reagent. If there is enough reagent in the tank, check the level sensor.
  3. Continue as follows to ensure that the problem is resolved:
  4. Turn off and turn on the ignition with the ignition key.
  5. If the fault is resolved, the fault code becomes inactive. Clear the fault code.
  6. Using the ignition key, turn off and turn on the power three times in a row at intervals of 10 seconds to deactivate the test lamp.

EMS 5802

2098547, 2098546, 2098545, 2096902, 2096901

SCR main unit

Internal malfunction in the main unit.

The cause may be an external electrical fault (for example, a power or ground fault) of the level sensor and temperature in the reagent tank, or an internal hardware fault.

The fault affects the level of emissions of nitrogen oxides (NOx) by the engine.

  1. Check for any other DTCs indicating electrical faults in the system and correct these faults.
  2. If no other fault is found, replace the SCR main unit.

EMS 614

2098547, 2098546, 2098545, 2096902, 2096901, 9000000, 2089202, 2089201, 2089200

Cylinder balance (min. Or max.) Cylinder 2

The cylinder balance values ​​have reached their maximum and minimum limits.

injector restrictor valve defective.

The cause may be air in the fuel system, but in this case several cylinders are likely to be affected.

Engine running unevenly. If there is too much fuel in the engine, this results in black smoke emissions, and if there is too little fuel in the engine, the result is white smoke emissions.

Recognition of codes invalid can be performed only if:

no active trouble code affecting coolant temperature

engine running at idle

coolant temperature is approximately 80 ° C

Check the nozzle and the compression in the cylinder.

EMS 5763

2098547, 2098546, 2098545, 2096902, 2096901, 9000000, 2089202, 2089201, 2089200

Variable geometry turbocharger, danger of overspeeding

Indication of exceeding the allowable rotational speed of a variable geometry turbocharger.

  • Excessive speeds could be caused by a combination of a number of factors: for example, the width of the annular gap in the nozzle of a turbocharger with variable geometry, the position of the EGR valve and the amount of fuel supplied. The annular gap of the nozzle and the EGR valve is likely to be fully or partially closed at the same time, since there is a high engine load at the time of the malfunction.
  • Turbine speed is measured by a turbine speed sensor. However, at the same time, the charge air pressure sensor checks the accuracy of the rotational speed. A fault code is generated if the difference between the actual and the estimated speed is too large. The fault may be present either in the turbine speed sensor or in the charge air pressure sensor.

To reduce the turbine speed, the engine control unit immediately reduces engine power. Engine power will remain low until the turbine speed is sufficiently reduced.

The time for confirming the malfunction code is 30 s, the acknowledgment time is 5 s.

  1. Check the installation and operation of the turbine speed sensor T120.
  2. Measure the resistance at the turbocharger T120 speed sensor at room temperature. The resistance between pins 1 and 2 should be 850 ohms ± 50 ohms.
  3. Make sure the air filter is not blocked.
  4. Ensure that the charge air lines are not clogged and do not leak.
  5. Check the installation and operation of the charge air pressure sensor.
  6. Check if any other DTCs are generated. Take the necessary actions to eliminate the causes of other fault codes for the EGR system, fuel system or variable geometry turbocharger that were active.

EMS 136

2110164, 2110165, 2110166, 2110162, 2110116

Pressure in the fuel supply system

The pressure in the fuel line significantly exceeds the set value.

The probable cause of the malfunction is a defect in the bypass valve. It is also possible that the drain line is clogged.

A fault code will be recorded only if the pressure in the fuel line exceeds the set value for 7 seconds or a longer time interval. This time period was set to avoid writing code due to short-term pressure fluctuations not caused by functional deviation.

If the signal voltage is outside the acceptable range, the control unit uses the preprogrammed value.

With this fault, the engine torque is reduced by 30% while the fault code is active (confirmed). As a result of this malfunction, uneven engine operation and increased smoke can occur.

  1. Check the electrical components, electrical connectors and wiring.
  2. Check the bypass valve and fuel return line.

EMS 256

9000000, 2089202, 2089201, 2089200

Mass sensor air inlet T126

The readings of the mass flow sensor remain unchanged, although the operating conditions indicate the opposite.

The mass air flow sensor may be faulty.

The engine control unit switches off the exhaust gas recirculation system. In accordance with current legal requirements, engine power is reduced on vehicles that are equipped with NOx exhaust control.

The fault code cannot be cleared while the fault is present.

  1. Check the electrical components, electrical connectors and wiring.
  2. Replace the air flow sensor.

EMS 5849

2098547, 2098546, 2098545, 2096902, 2096901

NOx sensor after SCR catalytic converter

The NOx sensor after the SCR catalytic converter shows too low a value.

The cause of the malfunction may be an old or incorrectly installed NOx sensor, the formation of reagent crystals in the SCR system or a damaged SCR catalytic converter.

The fault does not affect engine emissions. NOx warning lamp is on.

Engine torque is reduced by approximately 40% after the engine has completed 36 hours.

  1. Check for the presence of reagent crystals in the SCR catalytic converter and the presence of visible damage to the SCR catalytic converter.
  2. Check the connectors and wires of the NOx sensor and make sure the sensor is installed correctly. Perform an SCR system check using SDP3. If no other problems are found, replace the sensor.
  3. To verify that the problem is resolved, follow these steps:
  4. Switch off the onboard power using the ignition key. Wait at least 90 seconds and then turn on the power again with the ignition key.
  5. If the fault is resolved, the fault code becomes inactive. Then clear the fault code.
  6. Turn off and turn on the power three times at intervals of 10 seconds to deactivate the test lamp.

EMS 5383

2098547, 2098546, 2098545, 2096902, 2096901, 9000000, 2089202, 2089201, 2089200

Supply voltage 1, engine control unit

The power supply to the engine control unit was below acceptable levels.

The engine control unit has two parallel circuits for supplying voltage. A single-circuit voltage supply was insufficient, which could be due to a faulty fuse or a damaged electrical wiring harness.

If the fuse is OK, the system is operating normally, but a fault code is generated. If the fuses of both circuits are faulty, the engine control unit does not receive voltage and the engine stalls.

Check the engine power supply fuses. Replace fuses if necessary. If the fault persists, check the wiring and connectors.

EMS 8349

2110164, 2110165, 2110166, 2110162, 2110116

SCR – Main Unit

Internal malfunction in the main unit.

As a result of a fault, the injection of the reagent is turned off.

If the signal voltage is outside the acceptable range, the control unit uses the preprogrammed value.

The fault affects the emission of nitrogen oxides (NOx) by the car, and a warning lamp lights up in the instrument cluster, warning of a high level of pollutants. On vehicles with NOx control, a text message is also displayed.

Cars with NOx control

An active DTC limits the maximum engine torque to approximately 40%.

An active DTC cannot be deleted from the control unit. When the malfunction is resolved so that the malfunction code becomes inactive, the control unit must ensure that the malfunction has been eliminated.

  1. Turn off and turn on the ignition with the ignition key. If the DTC remains active, replace the main unit.
  2. Continue as follows to ensure that the problem is resolved:
  3. Turn off and turn on the ignition with the ignition key.
  4. If the fault is resolved, the fault code becomes inactive. Clear the fault code.
  5. To turn off the alarm, turn off and turn on the ignition with the ignition key three times in a row at 10-second intervals.

EMS 5639

2098547, 2098546, 2098545, 2096902, 2096901, 9000000, 2089202, 2089201, 2089200

The engine control unit

Failure of the control unit.

The engine control unit is faulty or has been exposed to an electromagnetic field (EMC).

While there is a fault, the car cannot start moving. The control system shuts off the fuel supply to the injectors.

  1. Clear the fault memory and turn off the ignition with the ignition key.
  2. Wait one minute.
  3. Turn on the ignition with the ignition key.
  4. Repeat this five times. Replace the control unit if this DTC is generated again.

EMS 5141

2098547, 2098546, 2098545, 2096902, 2096901, 2110163, 2110160, 2110164, 2110165, 2110166, 2110162, 2110116, 9000000, 2089202, 2089201, 2089200

Back pressure in exhaust system

The back pressure in the exhaust system is too low when the engine brake is applied.

The engine brake works with reduced braking force.

  1. for leaks in the exhaust manifold
  2. EGR valve for leaks using the EGR check for leaks
  3. work of the watching valve and valve of the motor brake
  4. back pressure sensor in exhaust system and atmospheric pressure sensor
  5. electrical connectors and wiring

EMS 8454

2098547, 2098546, 2098545, 2096902, 2096901, 9000000, 2089202, 2089201, 2089200

Fuel management has been deactivated due to high temperature, high amperage, or low voltage.

The output stage in ME7 does not work.

The engine goes into failsafe mode of operation.

Replace the ME7 unit.

EMS 5835

2098547, 2098546, 2098545, 2096902, 2096901

Charge air pressure sensor

The charge air pressure sensor shows a static value even when the engine is running at varying speeds.

This DTC can only be deleted when it is inactive.

Faulty charge air pressure sensor.

  1. Make sure the sensor value is static.
  2. Check sensor connectors and wiring.
  3. Replace the charge air pressure sensor.
  4. To clear the DTC, let the engine run under load. If the fault is resolved, the fault code becomes inactive and can be erased.

EMS 8723

2098547, 2098546, 2098545, 2096902, 2096901

NOx sensor open circuit in front of the catalytic converter.

NOx sensor open circuit in front of the catalytic converter.

  1. Check the electrical components, electrical connectors and wiring.
  2. Make sure the problem is resolved by turning off the power with the ignition key, waiting 90 seconds and then turning it on again. If the fault is resolved, the fault code becomes inactive. Clear the fault code.
  3. Turn off and turn on the power three times at intervals of 10 seconds to deactivate the test lamp.

EMS 15

2098557, 2098556, 2110163, 2110160, 2110164, 2110165, 2110166, 2110162, 2110116

Incorrect or unreliable data.

Internal malfunction in the control unit.

While there is a fault, the car cannot start moving.

Erase the trouble codes from the memory, then turn off the ignition with the ignition key and turn it on again. Does the trouble code remain active? In this case, replace the control unit.

EMS 8268

2110164, 2110165, 2110166, 2110162, 2110116

SCR – Main Unit

Internal malfunction in the main unit.

As a result of a fault, the injection of the reagent is turned off.

If the signal voltage is outside the acceptable range, the control unit uses the preprogrammed value.

The fault affects the emission of nitrogen oxides (NOx) by the car, and a warning lamp lights up in the instrument cluster, warning of a high level of pollutants. On vehicles with NOx control, a text message is also displayed.

Cars with NOx control

An active DTC limits the maximum engine torque to approximately 40%.

An active DTC cannot be deleted from the control unit. When the malfunction is resolved so that the malfunction code becomes inactive, the control unit must ensure that the malfunction has been eliminated.

  1. Switch off the ignition with the key, wait for 90 seconds and then turn it on again with the key. If the fault code becomes inactive, erase the code; If the DTC is still active, replace the main unit.
  2. Continue as follows to ensure that the problem is resolved:
  3. Turn off the ignition with the key, wait at least 90 seconds and then turn it on again with the key.
  4. If the fault is resolved, the fault code becomes inactive. Clear the fault code.
  5. To turn off the alarm, turn off and turn on the ignition with the ignition key three times in a row at 10-second intervals.

EMS 361

9000000, 2089202, 2089201, 2089200

The correct fuel mixture was not obtained.

Fuel adaptation has exceeded or dropped below the adaptation limit.

There is a risk of misfire.

Ensure that there is no leakage in the entire engine intake system.

Check the system gas supply and injectors.

EMS 5769

2098547, 2098546, 2098545, 2096902, 2096901, 9000000, 2089202, 2089201, 2089200

Variable geometry turbocharger, several faults in the variable geometry turbocharger system.

Several faults were detected in the variable geometry turbocharger system.

The variable geometry turbocharger actuator detected several faults and signaled them.

The engine control unit turns off the EGR system and the engine power decreases.

The fault code cannot be cleared while the fault is present.

  1. Eliminate other passive fault codes for variable geometry turbochargers.
  2. If the operating time since the generation of the fault code exceeds 10 hours, empty the EGR cooler, as there is a danger of condensation in the air-cooled EGR cooler after the EGR system is turned off. Empty the EGR cooler following the instructions given in the manual for service stations, subgroup 01-65.

EMS 5853

2098547, 2098546, 2098545, 2096902, 2096901

The SCR adaptation values ​​have reached the maximum end position.

  • Poor quality reagent.
  • Corked reagent dispenser.
  • Faulty NOx sensors.
  • Failure to measure exhaust gas flow.
  • Malfunction of the charge air pressure sensor T122.
  • Exhaust gas leaks.

For information only.

  1. Check the quality of the reagent.
  2. Check reagent dispenser.
  3. Check the NOx sensors.
  4. Check for large exhaust leaks.
  5. Check the charge air pressure sensor T122.

EMS 274

9000000, 2089202, 2089201, 2089200

Charge air temperature sensor T121 or air intake temperature sensor T126

For engine control units manufactured after February 2009:

Malfunction of the temperature sensor charge air T121.

For engine control units manufactured before February 2009:

Malfunction of the temperature sensor air intake T126. The sensor consists of the same elements as the intake air flow sensor. The voltage in the circuit was below acceptable levels.

Short circuit to ground

For engine control units manufactured before February 2009:

This may affect engine power. There is the danger of black smoke.

For engine control units manufactured after February 2009:

This may affect engine power.

For engine control units manufactured before February 2009:

Check the charge air temperature sensor T121 and its connectors and wiring.

Measure the resistance of the intake air temperature sensor. The electrical resistance should be approximately 2.5 kΩ at 20 ° C.

Measure the sensor supply voltage. With the sensor disconnected, the voltage should be approximately 5 V.

For engine control units manufactured after February 2009:

Check the air intake temperature sensor T126 and its connectors and wiring.

Measure the sensor resistance. The electrical resistance should be approximately 2.5 kΩ at 20 ° C.

Measure the sensor supply voltage. With the sensor disconnected, the voltage should be approximately 5 V.

EMS 5168

2110164, 2110165, 2110166, 2110162, 2110116

Exhaust gas temperature sensor in front of the SCR catalytic converter

Invalid signal from the sensor. The temperature is lower than expected by the control unit.

  • Defective exhaust gas temperature sensor in front of the SCR catalytic converter.
  • In addition, a malfunction may occur if the design of the exhaust system has been changed.

Faults lead to a lack of reagent supply or the addition of a very small amount of reagent.

  1. Check exhaust gas temperature sensor and wiring.
  2. Check exhaust system.
  3. To check if the malfunction has been fixed and if the malfunction code does not occur again, you can click on the malfunction code monitoring function and view the malfunction code. This DTC is not generated immediately. In order for the control unit to generate an active fault code, the fault causing the code generation must occur in four consecutive cycles, that is, the ignition must be turned off and on four times. To see if the DTC is in the process of being considered, that is, whether a DTC is generated, you can use the DTC Monitoring feature.

EMS 5772

2098547, 2098546, 2098545, 2096902, 2096901, 9000000, 2089202, 2089201, 2089200

Variable geometry turbocharger, electric motor

Too much movement of the ring nozzle in a variable geometry turbocharger.

Moving the ring nozzle incorrectly due to damage to the element or improper installation of the electric motor.

The engine control unit turns off the EGR system and the engine power decreases.

The fault code cannot be cleared while the fault is present.

  1. Make sure the variable geometry turbocharger is installed correctly.
  2. Reinstall software using SDP3.
  3. Check the turbocharger system with variable geometry, its elements, wiring and connectors.
  4. Check motor drive mechanism for damage and wear.
  5. If the operating time since the generation of the fault code exceeds 10 hours, empty the EGR cooler, as there is a danger of condensation in the air-cooled EGR cooler after the EGR system is turned off. Empty the EGR cooler following the instructions given in the manual for service stations, subgroup 01-65.

EMS 51

9000000, 2089202, 2089201, 2089200

Turbocharger, bypass valve

Incorrect voltage in the solenoid valve circuit controlling the bypass valve.

The bypass valve of the turbocharger is controlled by a solenoid valve (V109), which receives signals from the engine management system. An open or short in the electrical circuit of the solenoid valve.

The charge pressure is not adjusted correctly, danger of overload.

Check the solenoid valve, wiring and electrical connectors.

EMS 8263

2110164, 2110165, 2110166, 2110162, 2110116

SCR – Reagent Dispenser

The voltage in the circuit was outside the limits.

An open or a short to ground in the electrical circuit of the reagent dispenser.

As a result of a fault, the SCR system shuts down and the reagent injection shuts down.

When the SCR system is turned off, fault codes 4108, 4106, and 4107 relating to data exchange with the SCR system can also be generated . Perform a primary troubleshooting using this fault code.

When the SCR system is disabled, the communication between the SCR control unit and the engine control unit can be interrupted. To ensure correct handling of the DTC, control units must be able to communicate with each other. Try to reestablish the connection, for which you should turn off the ignition, wait 90 seconds and turn on the ignition again.

The fault affects the emission of nitrogen oxides (NOx) by the car, and a warning lamp lights up in the instrument cluster, warning of a high level of pollutants. On vehicles with NOx control, a text message is also displayed.

Cars with NOx control

An active DTC limits the maximum engine torque to approximately 40%.

An active DTC cannot be deleted from the control unit. When the malfunction is resolved so that the malfunction code becomes inactive, the control unit must ensure that the malfunction has been eliminated.

  1. Check the electrical components, electrical connectors and wiring.
  2. The resistance of the reagent dispenser at a temperature of 20 ° C should be in the range between 14 Ohm and 15 Ohm.
  3. Continue as follows to ensure that the problem is resolved:
  4. Turn off the power with the ignition key, wait at least 90 seconds and then turn it on again with the key.
  5. If the fault is resolved, the fault code becomes inactive. Clear the fault code.
  6. Using the ignition key, turn off and turn on the power three times in a row at intervals of 10 seconds to deactivate the test lamp.

EMS 5698

2110164, 2110165, 2110166, 2110162, 2110116

The voltage in the circuit was outside the limits.

Short circuit in the fan solenoid valve circuit.

The fan of the cooling system is not controlled. May affect engine temperature.

Check the electrical components, electrical connectors and wiring.

EMS 9219

2098557, 2098556, 2110163, 2110160

Oil pressure sensor

The voltage level from the sensor was implausible compared to the level that must be available for the current engine speed.

The cause of this DTC may be electrical or mechanical failure.

Electrical faults can be caused by damage to the wiring or sensor failure. There may also be a fault in the electrical circuit of the fuel temperature sensor or the electrical circuit of the mass flow sensor.

Mechanical faults associated with the lubrication system. The cause of low oil pressure can be, for example:

  • low oil level
  • plugged oil filter.
  • fuel ingress
  • open valve sticking
  • gasket damage
  • oil pump or suction strainer malfunction
  • The cause of high oil pressure can be, for example:
  • oil channel blockage
  • abnormal oil viscosity
  • piston cooling valve or safety valve could stop in closed position

If the signal voltage is outside the acceptable range, the control unit uses the preprogrammed value.

The oil pressure gauge on the instrument cluster shows the current oil pressure (even if it is implausible), regardless of the engine speed.

The control lamp for oil pressure is turned on only when the pressure becomes so low that it falls below the limit value for switching on this lamp.

Start by checking the oil level and oil filter. Then check the oil pressure sensor, fuel temperature sensor, mass flow sensor and connectors and electrical wiring of electrical circuits. Finally, check the lubrication system and its components.

EMS 9731

2098547, 2098546, 2098545, 2096902, 2096901, 9000000, 2089202, 2089201, 2089200

The voltage in the circuit was outside the limits.

  • Short to power + battery wires in the electrical circuit of the coolant pump.
  • Malfunction in the fan speed sensor circuit.

The coolant pump is not activated and the cooling efficiency remains low as long as the fault is present.

The fan speed sensor and the coolant pump have a common power supply. In the event of a fault in one of the elements, it may affect the electrical circuits of other elements.

  1. Check fan speed sensor and coolant pump with connectors and electrical wiring.
  2. Measure the resistance of the coolant pump electrical circuit.

EMS 8450

2098557, 2098556, 2110163, 2110160, 9000000, 2089202, 2089201, 2089200

The control unit could not convert the signal from the sensor.

Internal malfunction in the control unit.

If the signal voltage is outside the acceptable range, the control unit uses the preprogrammed value.

In the case of engines with EGR, the engine works with EGR, but without any feedback through the mass flow sensor. Therefore, the control unit will only control the composition of EGR gases roughly, “roughly”, using predefined values ​​to set the position of the EGR valve. Calibration of the mass flow sensor is turned off.

Clear the DTC memory, start the engine and increase its speed. If this DTC is generated again, replace the control unit.

EMS 8261

2110164, 2110165, 2110166, 2110162, 2110116

SCR – Main Unit

Internal malfunction in the main unit.

As a result of a fault, the injection of the reagent is turned off.

If the signal voltage is outside the acceptable range, the control unit uses the preprogrammed value.

The fault affects the emission of nitrogen oxides (NOx) by the car, and a warning lamp lights up in the instrument cluster, warning of a high level of pollutants. On vehicles with NOx control, a text message is also displayed.

Cars with NOx control

An active DTC limits the maximum engine torque to approximately 40%.

An active DTC cannot be deleted from the control unit. When the malfunction is resolved so that the malfunction code becomes inactive, the control unit must ensure that the malfunction has been eliminated.

  1. Turn off the ignition with the key, wait at least 90 seconds and then turn it on again with the key.
  2. If the fault code becomes inactive, erase the code; If the DTC is still active, replace the main unit.
  3. Continue as follows to ensure that the problem is resolved:
  4. Turn off the ignition with the key, wait at least 90 seconds and then turn it on again with the key.
  5. If the fault is resolved, the fault code becomes inactive. Clear the fault code.
  6. To turn off the alarm, turn off and turn on the ignition with the ignition key three times in a row at 10-second intervals.

EMS 10498

The control unit could not convert the signal from the sensor.

Internal malfunction in the control unit.

The engine will work with exhaust gas recirculation, but without feedback on the signal from the mass flow sensor of the recycled exhaust gas. Therefore, the control unit will only control the composition of EGR gases roughly, “roughly”, using predefined values ​​to set the position of the EGR valve. Mass flow meter calibration disabled.

Clear the DTC memory, start the engine and increase its speed. If this DTC is generated again, replace the control unit.

EMS 5153

2098547, 2098546, 2098545, 2096902, 2096901, 9000000, 2089202, 2089201, 2089200

Backpressure sensor in exhaust system

The value of the backpressure sensor in the exhaust system is outside the acceptable range.

  • The value from the pressure sensor in the exhaust manifold is too low compared to the values ​​from other sensors.
  • Possible reasons:
  • Defective counter pressure sensor connector in the exhaust system.
  • Defective back pressure sensor wires in exhaust system.

The amount of fuel cannot be adjusted correctly.

This may adversely affect engine performance.

  1. Compare the values ​​from the charge air pressure sensor, atmospheric pressure sensor and backpressure sensor in the exhaust system with the ignition on without starting the engine (power is supplied via terminal U15). All sensors must display atmospheric pressure.
  2. Replace the backpressure sensor in the exhaust system, if its reading is more than 0.35 bar deviating from that of the other sensors.
  3. Verify that the repair was successful as follows:
  4. Run the engine until it reaches normal operating temperature.
  5. Turn off the engine, but leave the ignition key in the powering position via terminal U15.
  6. Wait 30 seconds and verify that the DTC has been deactivated.

EMS 8237

2110164, 2110165, 2110166, 2110162, 2110116

SCR – Reagent Pressure

During periods when the reagent is not injected, the pressure in the SCR system decreases more than it should be.

Leaks in reagent supply lines, reagent dispenser or internal leaks in the main unit.

As a result of a fault, the SCR system shuts down and the reagent injection shuts down.

When the SCR system is turned off, fault codes 4108, 4106, and 4107 relating to data exchange with the SCR system can also be generated. Perform a primary troubleshooting using this fault code.

When the SCR system is disabled, the communication between the SCR control unit and the engine control unit can be interrupted. To ensure correct handling of the DTC, control units must be able to communicate with each other. Try to reestablish the connection, for which you should turn off the ignition, wait 90 seconds and turn on the ignition again.

The fault affects the emission of nitrogen oxides (NOx) by the car, and a warning lamp lights up in the instrument cluster, warning of high levels of pollutants. On vehicles with NOx control, a text message is also displayed.

Cars with NOx control

An active DTC limits the maximum engine torque to approximately 40%.

An active DTC cannot be deleted from the control unit. When the malfunction has been resolved, in order for the malfunction code to become inactive, the control unit must ensure that the malfunction has been eliminated.

  1. Check for leaks in the SCR system.
  2. Check the vent valve. If the vent valve is stuck open, replace the vent valve.
  3. If the fault lies in the main unit, it should be replaced. However, it is uncharacteristic that the fault lay in the main unit. Before replacing the SCR control unit, make sure that the fault is not caused by something else.
  4. Perform the system checks that are provided in SDP3 for the SCR system. System checks can help detect some of the faults listed above.
  5. Continue as follows to ensure that the problem is resolved:
  6. To ensure that the problem has been rectified, you can check the “Recognizing DTCs for NOx Control Invalid”, which is located on the “Checks” tab in SDP3. This test should be performed outdoors because the exhaust gas temperature becomes very high and there is a risk that the exhaust gas hose will melt. It takes about 5-30 minutes to complete the test.
  7. If the fault is resolved, the fault code becomes inactive. Clear the fault code.
  8. Using the ignition key, turn off and turn on the power three times in a row at intervals of 10 seconds to deactivate the test lamp.

EMS 8265

2110164, 2110165, 2110166, 2110162, 2110116

SCR – Reagent Dispenser

The voltage in the circuit was outside the limits.

Short circuit on the + 24 V electrical circuit in the reagent dispenser electrical circuit.

As a result of a fault, the SCR system shuts down and the reagent injection shuts down.

When the SCR system is turned off, fault codes 4108, 4106, and 4107 relating to data exchange with the SCR system can also be generated. Perform a primary troubleshooting using this fault code.

When the SCR system is disabled, the communication between the SCR control unit and the engine control unit can be interrupted. To ensure correct handling of the DTC, control units must be able to communicate with each other. Try to reestablish the connection, for which you should turn off the ignition, wait 90 seconds and turn on the ignition again.

The fault affects the emission of nitrogen oxides (NOx) by the car, and a warning lamp lights up in the instrument cluster, warning of a high level of pollutants. On vehicles with NOx control, a text message is also displayed.

Cars with NOx control

An active DTC limits the maximum engine torque to approximately 40%.

An active DTC cannot be deleted from the control unit. When the malfunction is resolved so that the malfunction code becomes inactive, the control unit must ensure that the malfunction has been eliminated.

  1. Check the electrical components, electrical connectors and wiring.
  2. The resistance of the reagent dispenser should be 14-15 Ohms at a temperature of 20 ° C.
  3. Continue as follows to ensure that the problem is resolved:
  4. Turn off the power with the ignition key, wait at least 90 seconds and then turn it on again with the key.
  5. If the fault is resolved, the fault code becomes inactive. Clear the fault code.
  6. Using the ignition key, turn off and turn on the power three times in a row at intervals of 10 seconds to deactivate the test lamp.

EMS 8206

2098547, 2098546, 2098545, 2096902, 2096901

The temperature at the front of the diesel particulate filter (DPF) is excessively high for regeneration. It is registered by a temperature sensor in the area in front of the filter in less than 2 minutes.

Leakage and oil or fuel entering the exhaust stream in front of the silencer. Temperature sensor malfunction T158.

  1. Check the EMS and EEC fault codes associated with the sensor malfunction and make the necessary repairs.
  2. Check for signs of leakage of oil and fuel in the exhaust pipe, between the engine and the muffler. Check with SDP3 the condition of the fuel system, in particular, possible injector malfunctions. A low engine oil level may indicate an oil leak.
  3. To verify the effectiveness of the repair, perform a service regeneration procedure using SDP3. The temperature in the exhaust system is very high, it can reach 500 ° C.

EMS 8280

9000000, 2089202, 2089201, 2089200

Drive mountain brake, short to low to +24

Reset not defined

EMS 5856

2098547, 2098546, 2098545, 2096902, 2096901

Oxidizing Catalytic Converter

The temperature sensor in front of the oxidative catalytic converter shows a constant value despite the fact that the engine operates at different speeds and loads.

Temperature sensor malfunction or incorrect positioning of the sensor in the exhaust gas stream.

Check the temperature sensor, its connector and wiring.

If the measured value remains constant and there are no other faults, replace the sensor and erase the DTCs.

EMS 8236

2110164, 2110165, 2110166, 2110162, 2110116

SCR – Water Reagent Heating Valve

The voltage in the circuit was outside the limits.

Short circuit on the electric circuit + 24 V in the electric circuit of the water heating valve.

As a result of a fault, the SCR system shuts down and the reagent injection shuts down.

When the SCR system is turned off, fault codes 4108, 4106, and 4107 relating to data exchange with the SCR system can also be generated. Perform a primary troubleshooting using this fault code.

When the SCR system is disabled, the communication between the SCR control unit and the engine control unit can be interrupted. To ensure correct handling of the DTC, control units must be able to communicate with each other. Try to reestablish the connection, for which you should turn off the ignition, wait 90 seconds and turn on the ignition again.

The fault affects the emission of nitrogen oxides (NOx) by the car, and a warning lamp lights up in the instrument cluster, warning of a high level of pollutants. On vehicles with NOx control, a text message is also displayed.

Cars with NOx control

An active DTC limits the maximum engine torque to approximately 40%.

An active DTC cannot be deleted from the control unit. When the malfunction is resolved so that the malfunction code becomes inactive, the control unit must ensure that the malfunction has been eliminated.

  1. Check the electrical components, electrical connectors and wiring.
  2. The normal resistance of a water valve at room temperature should be approximately 140 ohms.
  3. Continue as follows to ensure that the problem is resolved:
  4. Turn off the power with the ignition key, wait at least 90 seconds and then turn it on again with the key.
  5. If the fault is resolved, the fault code becomes inactive. Clear the fault code.
  6. Using the ignition key, turn off and turn on the power three times in a row at intervals of 10 seconds to deactivate the test lamp.

EMS 5158

2098547, 2098546, 2098545, 2096902, 2096901

Turbine Bypass Valve

Short circuit to + battery tracking valve control valve bypass the turbine.

Short to + pin 8 battery in connector A3.

A fault code can only be deleted when it is inactive.

EMS 9306

2098547, 2098546, 2098545, 2096902, 2096901, 9000000, 2089202, 2089201, 2089200

EGR, bypass valve

Overflow valve not working.

A break in the relief valve circuit.

The engine control unit turns off the EGR system and the engine power decreases.

The fault code cannot be cleared while the fault is present.

Check the bypass valve as well as the electrical connectors and wiring.

EMS 5728

2110164, 2110165, 2110166, 2110162, 2110116

EGR valve tracking

The control unit registers the current in the circuit, although the control unit does not supply power to the circuit.

The engine control unit shuts down the EGR system and calibrates the mass flow sensor.

The fault affects the emission of nitrogen oxides (NOx) by the car, and a warning lamp lights up in the instrument cluster, warning of a high level of pollutants. On vehicles with NOx control, a text message is also displayed.

Cars with NOx control

An active DTC cannot be deleted from the control unit. When the malfunction is resolved so that the malfunction code becomes inactive, the control unit must ensure that the malfunction has been eliminated.

  1. Check the electrical components, electrical connectors and wiring.
  2. Continue as follows to ensure that the problem is resolved:
  3. Start the engine and let it run at idle for at least 15 seconds.
  4. If the fault is resolved, the fault code becomes inactive. Clear the fault code.
  5. Using the ignition key, turn off and turn on the power three times in a row at intervals of 10 seconds to deactivate the test lamp.

EMS 5680

2110164, 2110165, 2110166, 2110162, 2110116

Incorrect or unreliable data.

Internal malfunction in the control unit.

Wrong signal transmitted by the control unit to the solenoid valve controlling the fuel supply to the front group of cylinders.

During the entire time when the detected fault appears, the fuel supply to the engine stops. If the fault period is sufficiently long, the engine may stop.

As a result, other trouble codes can be recorded in the memory of the control unit.

Clear the trouble codes and test drive the car for 10 minutes. The fault code remains active? If the code is written to memory again, replace the control unit.

EMS 8292

2110164, 2110165, 2110166, 2110162, 2110116

The SCR control unit indicated that the battery voltage was above the allowable value.

It was above 64.6 V.

This may be caused by the work start-charger.

High voltage levels can damage the SCR system.

As a result of a fault, the injection of the reagent is turned off.

The fault affects the emission of nitrogen oxides (NOx) by the car, and a warning lamp lights up in the instrument cluster, warning of a high level of pollutants. On vehicles with NOx control, a text message is also displayed.

Cars with NOx control

An active DTC limits the maximum engine torque to approximately 40%.

An active DTC cannot be deleted from the control unit. When the malfunction is resolved so that the malfunction code becomes inactive, the control unit must ensure that the malfunction has been eliminated.

  1. Check the battery and alternator.
  2. Check the connectors and wiring.
  3. Continue as follows to ensure that the problem is resolved:
  4. Turn off and turn on the onboard power supply with the ignition key.
  5. If the fault is resolved, the fault code becomes inactive. Clear the fault code.
  6. Using the ignition key, turn off and turn on the power three times in a row at intervals of 10 seconds to deactivate the test lamp.

EMS 8291

2098547, 2098546, 2098545, 2096902, 2096901

SCR control unit

Low battery voltage.

The fault may occur during a cold start, if the battery is in poor condition.

Reagent injection is turned off.

  • Check the battery, alternator, electrical connectors and wiring.
  • Make sure the problem is resolved by turning off and on the power with the ignition key. If the fault is resolved, the fault code becomes inactive. Clear the fault code.
  • Turn off and turn on the power three times at intervals of 10 seconds to deactivate the test lamp.

EMS 9600

2098547, 2098546, 2098545, 2096902, 2096901, 9000000, 2089202, 2089201, 2089200

Turbocharger, speed sensor 1

The voltage in the circuit was below acceptable levels.

Short to ground.

Engine power is reduced to protect the turbocharger from damage.

Check the electrical components, electrical connectors and wiring.

EMS 9729

2098557, 2098556, 2110163, 2110160

The voltage of one of the sensors having a common power is below the set value.

With this fault, the engine torque is reduced by 30% while the fault code is active (confirmed).

Check sensors, connectors and wiring.

EMS 582

2098547, 2098546, 2098545, 2096902, 2096901, 9000000, 2089202, 2089201, 2089200

Turbine Bypass Solenoid Valve

The turbine bypass solenoid valve cannot control the charge air pressure.

Short circuit of the solenoid valve bypassing the turbine on the + battery.

The charge air pressure cannot be controlled.

Check the element, connectors and wiring. Replace the turbine bypass solenoid valve.

EMS 6148

2098547, 2098546, 2098545, 2096902, 2096901

Hydrocarbon injection off.

Failure of sensor signals.

Regeneration of the filter is not allowed.

  1. Check the active fault codes and correct the corresponding faults for the sensors in the EMS engine management system and in the EEC3 exhaust gas after-treatment system.
  2. To confirm the repair, turn on the ignition for 10 seconds.

EMS 5664

2110164, 2110165, 2110166, 2110162, 2110116

Incorrect or unreliable data.

  • The cause of the malfunction may be:
  • Internal malfunction in the control unit.
  • When starting, terminal U15 (ignition voltage) has an external current consumer.
  • Power supply via terminal U15 from the control unit when disconnected, or through additional equipment or another control unit.

If a fault code is stored in memory, the engine control unit, despite repeated attempts, cannot turn off the EGR system.

Starting the control unit takes considerable time.

If a fault code is stored in memory, the engine control unit, despite repeated attempts, cannot turn off the EGR system.

  1. Check if there is a high current consumer at terminal U15.
  2. Check if the control unit is receiving power from the optional equipment.
  3. Check electrical wiring.
  4. Clear the DTC memory and perform a vehicle road test within 10 minutes. Check whether the malfunction code has been generated again. If this DTC was generated again, replace the control unit.

EMS 8255

2098547, 2098546, 2098545, 2096902, 2096901

Low level of reagent in the tank.

Low level of reagent in the tank.

Reagent injection is turned off, which negatively affects the level of NOx emissions from the engine.

In the case of engines with a NOx control system, a 40% reduction in torque is active as long as the DTC is active.

  1. Fill the tank as described in the Operation Manual and wait a few minutes.
  2. If the DTC is still active, check the level sensor float.
  3. On engines with a NOx control system, this corrective action should be monitored as follows: Turn on the on-board power supply with the ignition key. If the fault is resolved, the fault code will become inactive.

EMS 8346

2098547, 2098546, 2098545, 2096902, 2096901

SCR main unit

Faulty pressure sensor after throttle.

Faulty pressure sensor after throttle.

Reagent injection is turned off.

  1. Turn off and turn on the onboard power supply with the ignition key. If this DTC persists, replace the control unit. Make sure the problem is resolved by turning off and on the power with the ignition key. If the fault is resolved, the fault code becomes inactive. Clear the fault code.
  2. Turn off and turn on the power three times at intervals of 10 seconds to deactivate the test lamp.
Оцените статью
OBD
Добавить комментарий