Scania Suspension Fault codes

The system malfunction warning lamp also lights up in the following cases: when the onboard supply is powered on, check, the lamp lights to check that it is working, in this case the fault code is not recorded; upon completion of the altitude change of the position of the vehicle, in this case the fault code is not recorded; in case of low voltage

the power supply on the control unit is from 7.5 to 18 V, in this case the malfunction code is not recorded, if the control unit is turned off due to a voltage drop below 7.5V.

Malfunctions detected by the control unit: short circuit in electrical circuit, sensor or el. magn. valve; breakage in electrical circuit, sensor or email. magn. valve; incomplete performance of the height adjustment function of the vehicle, the control unit cannot lower or raise the vehicle to the required level; control unit memory error.

Faults Not Detected by the Control Unit

Control module malfunction.

Open and short circuit in the control circuit of the brake. by the system. Short circuit in electrical control circu. the system will be interpreted as normal braking, and the control unit will stop performing height adjustment of the vehicle position. If the brake signal is activated for more than five minutes, the control unit will ignore it and restore the control function. In the event of a fault, the control unit will return to normal operation.

Deformation of the lever or the thrust sensor position height. The consequence of this fault is the incorrect height of the vehicle position.

In case of failure of the coil of the sensor of height of position or penetration of moisture into the sensor or the sensor switch, the height of the position of the vehicle will be incorrect.

The valve that controls the increase / decrease in the height of the position of the a / m.

The vehicle rises and falls.

The electromagnetic valve controlling the increase / decrease of the height of the position of the Vehicle (filling / bleeding air from the pneumatic elastic suspension elements) has stuck. This means that el. magn. the valve (increase / decrease position height) is constantly activated due to

continuous search for a given vehicle position height.

Email magn. control valve for raising / lowering add. the bridge. An additional bridge will rise and fall during the filling and release of air from the air. elastic suspension elements.

Any twisted or blocked hose connected to the solenoid valve to turn off the parking brake. system, or a jammed valve may cause the front axle spring brake not to be disengaged when the vehicle is being raised / lowered.

Nozzles, connecting the valves with the executive controls add. by the bridge. Additional bridge is not working.

Moisture penetration into pressure sensors.

If moisture enters the sensor or the sensor switch, the load between the rear axles may be incorrectly distributed.

Some malfunctions of the control unit. The suspension is not adjusted either manually or automatically.

 

Diagnostic mode

Fault codes recorded by the control unit can be read using the diagnostic tool or using the diagnostics. lamps.

Reading fault codes with a lamp

Fault codes can be read using the diag. lamp located on the control panel.

1. Press the diagnostics button, which is located next to the lamp, and hold it down for at least 2 and no more than seven seconds.

2. Release the button. The first trouble code is displayed.

3. The fault code consists of the tens digit and the digit unit. After the button is released, the tens of them will be displayed first. The flashing signals, representing the tens digit, have a lower frequency. After the tens digit is displayed, the lamp will display the digit unit. Flashing signals that display the discharge units, have a large frequency.

Erasing trouble codes

Fault codes are stored in the memory of the control unit until erased. After troubleshooting, it is very important to erase fault codes in order to avoid confusion during subsequent diagnostics.

1. Turn the ignition key and turn off the on-board power supply. Press the diagnostic button and hold it down.

2. Turn the key and turn on the on-board power supply, continue to hold the diagnostics button for at least 3 seconds.

Fault codes erased. If the malfunction code has been erased, and the malfunction has not been eliminated, then this malfunction code will be written again when the onboard power is turned on again. This does not apply to fault codes that require generation.

certain time.

DTC 01

Malfunction:

Failure of the control unit.

Cause of failure:

Wrong counter, the amount of permanent storage device (ROM). The data in the read-only memory device is incorrect.

What should be done:

Clear the fault code. Replace the control unit if this DTC

generated again.

 

DTC 02

Malfunction:

Incorrect calibration of the height sensor position.

Cause of failure:

The fault appears during the adjustment of the control unit on the signals coming from

height position sensors. The fault may have the following causes: one of the reference values does not correspond to the range of acceptable values; one of the height sensors is faulty; error in the memory area in which the settings of the height sensors are stored; Incorrect calibration, because too many wires are connected to the G9 cable.

Notes:

During calibration, the control unit detects 3 levels of alu height from the signals of the height sensors. The control unit compares the reference values with valid values.

values.

What should be done:

Check the condition and installation of the height sensors. Measure

electr. resistance of height position sensors. Electrical resistance should be 120 ohms +/- 5 ohms. Clear the fault code. Calibrate again. If the fault code is generated again: replace the control unit.

 

DTC 03

Malfunction:

Error parameter control unit.

Cause of failure:

Wrong counter, the sum of the parameters. At least one of the counter, process parameters adopted

incorrect value. The reason for the occurrence of this DTC may also be the fact that one or more parameters are not programmed.

Notes:

During parameter programming, a control value is generated for each of them. These values are summed, forming a counter, the amount. Subsequently, the control unit checks the counter, the amount and warns of an error.

What should be done:

Clear the fault code. If this DTC is generated again: Reprogram the parameters. Clear the fault code. Replace the control unit if this DTC is generated again.

DTC 04

Malfunction:

Failure of the control unit.

Cause of failure:

RAM Error (RAM). The RAM (RAM) of the control unit is faulty.

Notes:

By checking the RAM cells, the control unit detects damaged cells.

What should be done:

Clear the fault code. Replace the control unit if this DTC

generated again.

 

DTC 06

Malfunction:

Open circuit electr. power or control unit failure.

Cause of failure:

Fault relay control unit.

Notes:

This DTC can also be generated if, when the on-board power supply is turned off, to pin 1 electr. control unit connector is not supplied electr. nutrition.

What should be done:

Check if power is supplied. power to pin 1 electr. control unit connector (fuse 14). Clear the fault code. Replace the control unit if this

A fault code is generated again.

 

DTC 07

Malfunction:

Incorrect pressure sensor calibration.

Cause of failure:

The fault appears during the adjustment of the control unit on the signals coming from

air pressure sensors in pnevm. elastic elements. The fault may have the following causes: one of the reference values does not correspond to the range of acceptable values; One of the pressure sensors is faulty or the air does not completely come out of air. elastic elements; error of the memory area in which the pressure sensor settings are stored.

Notes:

During calibration, the control unit receives from the height sensors a signal corresponding to the position of the frame on the suspension travel limiters. The control unit compares the reference values with the valid values.

What should be done:

Check the reliability of the electrical connection. cable to the pressure sensor, as well as wiring between the control unit and the sensor. Lower the car in such a way that

Ma relied on the suspension stroke limiters. Make sure of the pneuma. elastic elements completely exhausted air. Measure Electr. voltage between pin 7 and ground. It should be 0.5 +/- 0.06 V. Measure the measurements on the appropriate connector on the electrical connector. Clear the malfunction code. Calibrate the control unit again using pressure sensor signals. Replace the control unit, if this code

malfunction is generated again.

 

DTC 08

Malfunction:

Failure of the control unit.

Cause of failure:

Wrong counter, the sum of the data WABCO.

Notes:

These values are programmed during the manufacture of the control unit. If this fault occurs, the scan tool cannot communicate with the control unit.

What should be done:

Clear the fault code. Replace the control unit if this DTC

generated again.

 

DTC 09

Malfunction:

Failure of the control unit.

Cause of failure:

Incorrect counter, the sum of the standard values of the signals of the height sensors.

Notes:

These values are programmed during the manufacture of the control unit.

What should be done:

Clear the fault code. Replace the control unit if this DTC

generated again.

DTC 11

Malfunction:

Open or short circuit in the electrical circuit of the height sensor installed on the rear axle.

Cause of failure:

The control unit has detected an open or short to power in the sensor or

electr. wire coming from the contact 25 of the control unit.

Notes:

The control unit receives implausible information about the height of the position of the rear

a / m

What should be done:

Check the reliability of the electrical connection. cable to the sensor, as well as wiring between the control unit and the sensor. Measure Electr. resistance on the sensor contacts. Electrical resistance should be 120 ohms +/- 5 ohms.

 

DTC 12

Malfunction:

Open or short circuit in the electrical circuit of the height sensor installed on the front axle.

Cause of failure:

The control unit has detected an open or short to power in the sensor or

electr. wire from contact 26 of the control unit.

Notes:

The control unit receives improbable information about the height of the position of the front of the car.

What should be done:

Check the reliability of the electrical connection. cable to the sensor, as well as wiring between the control unit and the sensor. Measure Electr. resistance on the sensor contacts. Electrical resistance should be 120 ohms +/- 5 ohms.

 

DTC 15

Malfunction:

Short circuit in the electrical circuit of the air pressure sensor in the pneumatic elastic element of the rear suspension.

Cause of failure:

The control unit has detected that the pressure sensor signal voltage is too high (between contact 7 and contact 27 (ground)).

Notes:

Additional bridge, being lowered, it is impossible to raise again. In the normal operation of the system, the voltage should be: 0.5 V, when the air is released from the pneum. elastic elements; 4.5 V at maximum air pressure in the pneumatic. elastic elements. If the voltage exceeds 6.4 V, the control unit interprets this information as a short circuit of the power supply to the power supply and generates

the corresponding fault code.

What should be done:

Check the reliability of the electrical connection. cable to the pressure sensor, as well as electrical wiring. between the control unit and the sensor. Check the connection reliability

"mass" to the pressure sensor. Lower the a / m so that the frame rests on the suspension stops of the suspension compression. Make sure of the pneuma. elastic elements

fully air exhausted. Measure Electr. voltage between pin 7 and ground. It should not exceed 0.5 +/- 0.06 V. Measurements are carried out on the appropriate electr block. connector.

 

DTC 17

Malfunction:

Short circuit in the electrical circuit of the air pressure sensor in a pneumatic elastic element mounted on an additional bridge / supporting rear axle.

Cause of failure:

The control unit has detected that the pressure sensor signal voltage is too high (between contact 6 and contact 27 (ground)).

Notes:

Additional bridge, being lowered, it is impossible to raise again. In the normal operation of the system, the voltage should be: 0.5 V, when the air is released from the pneum. elastic elements; 4.5 V at maximum air pressure in the pneumatic. elastic elements. If the voltage exceeds 6.4 V, the control unit interprets this information as a short circuit of the power supply to the power supply and generates

the corresponding fault code.

What should be done:

Check the reliability of the electrical connection. cable to the pressure sensor, as well as wiring between the control unit and the sensor. Check the connection reliability

"mass" to the pressure sensor. Lower the a / m so that the frame rests on the suspension stops of the suspension compression. Make sure of the pneuma. elastic elements

fully air exhausted. Measure Electr. voltage between pin 6 and ground. It should not exceed 0.5 +/- 0.06 V. Measurements are carried out on the appropriate electr block. connector.

DTC 21

Malfunction:

Short circuit in the electrical circuit of the height sensor position mounted on the rear axle.

Cause of failure:

The control unit has detected a short to ground in the position height sensor or

electr. wire coming from the contact 25 of the control unit.

Notes:

The control unit does not receive information about the height of the rear part of the vehicle.

What should be done:

Check the reliability of the electrical connection. cable to the sensor, as well as wiring between the control unit and the sensor. Measure Electr. resistance on the sensor contacts. Electrical resistance should be 120 ohms +/- 5 ohms.

 

DTC 22

Malfunction:

Short circuit in the electrical circuit of the height sensor position mounted on the front axle.

Cause of failure:

The control unit has detected a short to ground in the position height sensor or

electr. wire from contact 26 of the control unit.

Notes:

The control unit does not receive information about the height of the front of the vehicle.

What should be done:

Check the reliability of the electrical connection. cable to the sensor, as well as wiring between the control unit and the sensor. Measure Electr. resistance on the sensor contacts. Electrical resistance should be 120 ohms +/- 5 ohms.

 

DTC 25

Malfunction:

Open or short circuit in the circuit of the air pressure sensor in the pneumatic elastic element of the rear suspension.

Cause of failure:

The control unit has detected that the pressure sensor signal voltage is too low (between the end

tact 7 and contact 27 ("mass")).

Notes:

Additional bridge, being lowered, it is impossible to raise again. In the normal operation of the system, the voltage should be: 0.5 V, when the air is released from the pneum. elastic elements; 4.5 V at maximum air pressure in the pneumatic. elastic elements. If the voltage exceeds 125 mV, the control unit interprets this information as a short circuit of an electrical circuit to ground or an open circuit in the electrical circuit.

What should be done:

Check the reliability of the electrical connection. cable to the pressure sensor, as well as wiring between the control unit and the sensor. Check the connection reliability

to the wire pressure sensor electr. power supply. Lower the a / m so that the frame rests on the suspension stops of the suspension compression. Make sure of the pneuma. elastic elements completely exhausted air. Measure Electr. voltage between pin 7 and ground. It should not exceed 0.5 +/- 0.06 V. Measurements are carried out on the appropriate electr block. connector.

 

DTC 27

Malfunction:

Open or short circuit in the electrical circuit of the air pressure sensor in a pneumatic elastic element mounted on an additional bridge / supporting rear axle.

Cause of failure:

The control unit has detected that the pressure sensor signal voltage is too low (between contact 6 and contact 27 (ground)).

Notes:

Additional bridge, being lowered, it is impossible to raise again. In the normal operation of the system, the voltage should be: 0.5 V, when the air is released from the pneum. elastic elements; 4.5 V at maximum air pressure in pneum. elastic elements. If the voltage exceeds 125 mV, the control unit interprets this information as a short circuit of an electrical circuit to ground or an open circuit in the electrical circuit.

What should be done:

Check the reliability of the electrical connection. cable to the pressure sensor, as well as wiring between the control unit and the sensor. Check the connection reliability

to the wire pressure sensor electr. power supply. Lower the a / m so that the frame rests on the suspension stops of the suspension compression. Make sure of the pneuma. elastic elements completely exhausted air. Measure Electr. voltage between pin 7 and ground. It should not exceed 0.5 +/- 0.06 V. Measurements are carried out on the appropriate electr block. connector.

DTC 30

Malfunction:

Open or short circuit in the electrical circuit e. magn. valve that controls the filling / release of air from the pneum. elastic suspension elements.

Cause of failure:

When the valve is not activated, the control unit detects too high a voltage or an open circuit in the circuit between the contact 15 (electrical power supply of the magnet. Valve) and contact 27 ("ground").

Notes:

If the voltage exceeds 4 V, and the function of filling / venting air from the pneum. the elastic elements are not activated, the control unit interprets this information as a short circuit of the electrical circuit to the power supply and generates the appropriate fault code. If there is a break in the winding email. magn. valve, then a / m can not be raised.

In the event of a short circuit on the electrical circuit of the vehicle, it will be possible to lower it. This fault code is also generated in the event of the extraction or blown out of the fuse 14 when the on-board power is on.

What should be done:

Make sure the fuse 14 is not blown. Check the wiring between track 15 and the valve. Measure Electr. resistance of the valve winding.

Resistance should be 70-80 ohms.

 

DTC 31

Malfunction:

Open or short circuit in the electrical circuit e. magn. valve that controls the filling / release of air from the pneum. elastic elements of the rear suspension.

Cause of failure:

When the valve is not activated, the control unit detects too high a voltage or an open circuit in the circuit between the contact 13 (power supply of the electric magnet valve) and the contact 27 ("ground").

Notes:

If the voltage exceeds 4 V, and the function of filling / venting air from the pneum. pneum. the elastic elements are not activated, the control unit interprets this information as a short circuit of the electrical circuit to the power supply and generates the appropriate fault code. The control unit cannot activate the rear lift / lower function.

parts a / m, until the fault is not fixed.

What should be done:

Check the wiring between pin 13 and the valve. Measure Electr. resistance

valve winding. Resistance should be 70-80 ohms.

 

DTC 33

Malfunction:

Open or short circuit in the electrical circuit e. magn. valve that controls the filling / release of air from the pneum. elastic elements mounted on an additional

bridge / supporting rear axle.

Cause of failure:

When the valve is not activated, the control unit detects too high a voltage or an open circuit in the circuit between the contact 12 (power supply of the electric magnet valve) and the contact 27 ("ground").

Notes:

If the voltage exceeds 4 V, and the function of filling / venting air from the pneum. the elastic elements are not activated, the control unit interprets this information as a short circuit of the electrical circuit to the power supply and generates the appropriate fault code. The control unit can not activate the function of raising / lowering add. bridge / supporting rear axle.

What should be done:

Check the wiring between track 12 and the valve. Measure Electr. resistance

valve winding. Resistance should be 70-80 ohms.

 

DTC 35

Malfunction:

Open or short circuit in the electrical circuit e. magn. Tory off valve, system (front brakes).

Cause of failure:

When the valve is not activated, the control unit detects too high a voltage or an open circuit in the circuit between the contact 29 (power supply to the electric magnet valve) and the contact 27 ("ground").

Notes:

If the voltage exceeds 4 V, and the function of filling / venting air from the pneum. the elastic elements are not activated, the control unit interprets this information as a short circuit of the electrical circuit to the power supply and generates the appropriate fault code. The control unit cannot deactivate the parking brake system (front brakes) until the fault has been corrected.

Note:

In the event of a short circuit of the power supply to the power supply, the spring brakes of the front axle will not be activated.

What should be done:

Check the wiring between track 29 and the valve. Measure Electr. resistance

valve winding. Resistance should be 55-65 ohms.

DTC 36

Malfunction:

Open or short circuit in the electrical circuit e. magn. valve that controls the filling / release of air from the pneum. elastic elements of the front suspension.

Cause of failure:

When the valve is not activated, the control unit detects too high a voltage or an open circuit in the circuit between the contact 11 (power supply of the electric magnet valve) and the contact 27 ("ground").

Notes:

If the voltage exceeds 4 V, and the function of filling / venting air from the pneum. the elastic elements are not activated, the control unit interprets this information as a short circuit of the electrical circuit to the power supply and generates the appropriate fault code. The control unit cannot activate the function of raising / lowering the front part of the vehicle until the fault has been rectified.

What should be done:

Check the wiring between track 11 and the valve. Measure Electr. resistance

valve. Resistance should be 70-80 ohms.

 

DTC 37

Malfunction:

Open or short circuit in the electrical circuit e. magn. the valve controlling the raising / lowering of add. the bridge.

Cause of failure:

When the valve is not activated, the control unit detects too high a voltage or an open circuit in the circuit between the contact 14 (power supply for the al magnetic valve) and the contact 27 (ground).

Notes:

If the voltage exceeds 4 V, and the function of raising / lowering add. the bridge is not activated, the control unit interprets this information as a short circuit of the power supply to the power supply and generates the appropriate fault code. The control unit can not activate the function of raising / lowering add. bridge until the fault is resolved.

What should be done:

Check the wiring between terminal 14 and the valve. Measure Electr. resistance

valve. Resistance should be 70-80 ohms.

 

DTC 40

Malfunction:

Short circuit in the electrical circuit. magn. valve that controls the filling / release of air from the pneum. elastic elements.

Cause of failure:

When the valve is activated, the control unit detects too low a voltage between contact 15 (power supply to the electronic magnet valve) and contact 27 (ground).

Notes:

If the voltage is less than 2.5 V, and the function of filling / venting air from the pneum. When the elastic elements are activated, the control unit interprets this information as a short circuit of the electrical circuit to ground and generates the appropriate fault code. The control unit cannot activate the lift function until the fault is resolved.

What should be done:

Check the wiring between track 15 and the valve. Measure Electr. resistance

valve winding. Resistance should be 70-80 ohms.

 

DTC 41

Malfunction:

Short circuit in the electrical circuit. magn. valve that controls the filling / release of air from the pneum. elastic elements of the rear suspension.

Cause of failure:

When the valve is activated, the control unit detects too low a voltage between pin 13 (power supply to the electronic magnet valve) and contact 27 (ground).

Notes:

If the voltage is less than 2.5 V, and the function of filling / venting air from the pneum. the elastic elements are activated, the control unit interprets this information as a short circuit of the electrical circuit to ground and generates the appropriate fault code. The control unit cannot activate the lift function until the fault has been eliminated.

What should be done:

Check the wiring between pin 13 and the valve. Measure Electr. resistance

valve winding. Resistance should be 70-80 ohms.

 

DTC 43

Malfunction:

Short circuit in the electrical circuit. magn. valve that controls the filling / release of air from the pneum. elastic elements mounted on additional bridge / supporting rear axle.

Cause of failure:

When the valve is activated, the control unit detects too low a voltage between pin 12 (power supply to the electronic magnet valve) and contact 27 (ground).

Notes:

If the voltage is less than 2.5 V, and the function of filling / venting air from the pneum. If the elastic elements installed on the additional bridge are activated, the control unit interprets this information as a short circuit of the electrical circuit to ground and generates a corresponding fault code. The control unit cannot activate the function.

raise / lower add. bridge until the fault is resolved.

What should be done:

Check the wiring between track 12 and the valve. Measure Electr. resistance

valve winding. Resistance should be 70-80 ohms.

Fault code 45

Malfunction:

Short circuit in the electrical circuit. magn. valve off the parking brake. system (front brake mechanisms).

Cause of failure:

When the valve is activated, the control unit detects too low a voltage between contact 29 (power supply to the electronic magnet valve) and contact 27 (ground).

Notes:

If the voltage is less than 2.5 V, and the function to turn off the parking brake. system (front brakes) is activated, the control unit interprets this information as a short circuit of the electrical circuit to ground and generates the appropriate fault code.

The control unit cannot deactivate the parking brake system (front brakes) until the fault has been corrected.

What should be done:

Check the wiring between track 29 and the valve. Measure Electr. resistance

valve winding. Resistance should be 70-80 ohms.

 

DTC 46

Malfunction:

Short circuit in the electrical circuit. magn. valve that controls the filling / release of air from the pneum. elastic elements of the front suspension.

Cause of failure:

When the valve is activated, the control unit detects too low a voltage between pin 11 (power supply to the electronic magnet valve) and contact 27 (ground).

Notes:

If the voltage is less than 2.5 V, and the function of filling / venting air from the pneum. the elastic elements of the front suspension is activated, the control unit interprets this information as a short circuit of the electrical circuit to ground and generates the appropriate fault code.

The control unit cannot activate the function of raising / lowering the front part of the vehicle until the fault has been rectified.

What should be done:

Check the wiring between track 11 and the valve. Measure Electr. resistance

valve winding. Resistance should be 70-80 ohms.

 

Fault code 47

Malfunction:

Short circuit in the electrical circuit. magn. the valve controlling the raising / lowering of add. the bridge.

Cause of failure:

When the valve is activated, the control unit detects too low a voltage between pin 14 (power supply to the electronic magnet valve) and contact 27 (ground).

Notes:

If the voltage is less than 2.5 V, and the function of raising / lowering add. the bridge is activated, the control unit interprets this information as a short circuit of the electrical circuit to ground and generates. the corresponding fault code.

The control unit can not activate the function of raising / lowering add. bridge until the fault is resolved.

What should be done:

Check the wiring between terminal 14 and the valve. Measure Electr. resistance

valve winding. Resistance should be 70-80 ohms.

 

DTC 51

Malfunction:

The unsatisfactory performance of the command of the control unit to lift the rear part of the vehicle.

Cause of failure:

Within 30 seconds, the rear height sensor of the rear of the vehicle reports that the actual position height is less than that specified by the control unit.

Notes:

This DTC can be generated within the first 15 minutes after turning on the power to the on-board network, if it was turned off at least 10 seconds before. In this case, the pressure of compressed air in the pneumatic system will be sufficient.

What should be done:

Check the air pressure in the system. Make sure that the air enters the air. elastic

items. Check the components of the pneumatic system, paying attention to leaks, blockage of air ducts and jammed valves. Make sure that the link and the lever of the height sensor are not deformed or disconnected.

DTC 52

Malfunction:

The unsatisfactory performance of the command of the control unit to lift the front of the vehicle.

Cause of failure:

Within 30 seconds, the height sensor of the front part of the vehicle reports that the actual height of the position is less than that specified by the control unit.

Notes:

This DTC can be generated within the first 15 minutes after turning on the power to the on-board network, if it was turned off at least 10 seconds before. In this case, the pressure of compressed air in the pneumatic system will be sufficient.

What should be done:

Check the air pressure in the system. Make sure that the air enters the air. elastic

items. Check the components of the pneumatic system, paying attention to leaks, blockage of air ducts and jammed valves. Make sure that the link and the lever of the height sensor are not deformed or disconnected.

 

DTC 57

Malfunction:

The unsatisfactory execution of the command of the control unit to increase the pressure in the pneum. elastic elements mounted on additional bridge / supporting rear axle.

Cause of failure:

Within 30 seconds, the pressure sensor reports that the actual pressure is less than that set by the control unit.

Notes:

This DTC can be generated within the first 15 minutes after turning on the power to the on-board network, if it was turned off at least 10 seconds before. In this case, the pressure of compressed air in the pneumatic system will be sufficient.

What should be done:

Check the air pressure in the system. Make sure that the air enters the air. elastic

items. Check the components of the pneumatic system, paying attention to leaks, blockage of air ducts and jammed valves.

 

DTC 61

Malfunction:

The unsatisfactory performance of the command of the control unit to lower the rear part of the vehicle.

Cause of failure:

Within 30 seconds, the rear height sensor of the rear of the vehicle reports that the actual position height is greater than that specified by the control unit.

Notes:

This DTC can be generated within the first 15 minutes after turning on the power to the on-board network, if it was turned off at least 10 seconds before. In this case, the pressure of compressed air in the pneumatic system will be sufficient.

What should be done:

Check the air pressure in the system. Make sure that the link and the lever of the height sensor are not deformed or disconnected. Check if the e-mail is stuck. magn. valve

in the lifting position a / m. Make sure that there are no objects that impede the lowering of the vehicle. Check if the pressure sensors are stuck, and if their output voltage is equal to one volt. In the absence of overpressure, the output voltage of the pressure sensor should be 0.5 +/- 0.06 V.

 

DTC 62

Malfunction:

Unsatisfactory execution of the command of the control unit to lower the front

a / m

Cause of failure:

Within 30 seconds, the height sensor of the front part of the vehicle reports that the actual position height is greater than that set by the control unit.

Notes:

This DTC can be generated within the first 15 minutes after turning on the power to the on-board network, if it was turned off at least 10 seconds before. In this case, the pressure of compressed air in the pneumatic system will be sufficient.

What should be done:

Check the air ducts, paying attention to their blockage. Make sure not to

deformed and not disconnected thrust and lever height position sensor. Check if the e-mail is stuck. magn. valve in the lifting position a / m. Make sure that there are no objects that impede the lowering of the vehicle.

 

DTC 65

Malfunction:

The unsatisfactory performance of the command of the control unit to reduce the pressure in the pneum. elastic elements of the rear suspension.

Cause of failure:

Within 30 seconds, the pressure sensor reports that the actual pressure is greater than that specified by the control unit.

Notes:

This DTC can be generated within the first 15 minutes after turning on the power to the on-board network, if it was turned off at least 10 seconds before. In this case, the pressure of compressed air in the pneumatic system will be sufficient.

What should be done:

Check the air pressure in the system. Make sure that the air enters the air. elastic

items. Check the components of the pneumatic system, paying attention to leaks, blockage of air ducts and jammed valves. Check if the pressure sensors are stuck, and if their output voltage is equal to one volt. In the absence of overpressure, the output voltage of the pressure sensor should be 0.5 +/- 0.06 V.

DTC 67

Malfunction:

The unsatisfactory performance of the command of the control unit to reduce the pressure in the pneum. elastic elements mounted on additional bridge / supporting rear axle.

Cause of failure:

Within 30 seconds, the pressure sensor reports that the actual pressure is greater than that set by the control unit.

Notes:

This DTC can be generated within the first 15 minutes after turning on the power to the on-board network, if it was turned off at least 10 seconds before. In this case, the pressure of compressed air in the pneumatic system will be sufficient.

What should be done:

Check the air pressure in the system. Make sure that the air enters the air. elastic

items. Check the components of the pneumatic system, paying attention to leaks, blockage of air ducts and jammed valves. Check if the pressure sensors are stuck, and if their output voltage is equal to one volt. In the absence of overpressure, the output voltage of the pressure sensor should be 0.5 +/- 0.06 V.

 

DTC 80

Malfunction:

Failure of the control unit.

Cause of failure:

Incorrect counter, the sum of certain WABCO data.

Notes:

The cause of the malfunction is a sudden stop of the system.

What should be done:

Clear the fault code. If this DTC is generated again, replace the block.

management.

 

DTC 81

Malfunction:

Open or short circuit in the speedometer's signal circuit.

Cause of failure:

The control unit has detected an open circuit or short circuit on the power supply of pin 22.

Notes:

When the vehicle is stationary, changing its height with the help of the control module (when loading and unloading is performed) is rather slow. The process takes about a minute.

What should be done:

Check the wiring between terminal 22 electr. connector control unit and tachograph.