The Mercedes Atego WS unit plays a crucial role in the performance of your truck’s suspension system. It is responsible for monitoring and adjusting the air pressure in the suspension bags, ensuring that the vehicle stays stable and comfortable on the road. However, like any other electronic system, it can develop faults that affect its performance. These faults often appear as error codes on the dashboard, which can be challenging to diagnose and fix.
If you’re experiencing problems with your Mercedes Atego WS unit, the first step is to identify the fault codes displayed on the dashboard. Once you’ve identified the codes, it becomes easier to diagnose and fix the underlying issue. In this guide, we’ll explore some common fault codes, their symptoms, causes, and solutions.
One of the most common fault codes in the Mercedes Atego WS unit is C1013. This code indicates a problem with the compressor motor. Symptoms of this fault include a noisy compressor or the compressor failing to start. The main cause of this issue is a faulty compressor motor, which needs to be replaced.
Another common fault code is C1025, which points to a malfunction in the air supply system. This code usually occurs when there is a leak in the air lines, causing the suspension to deflate. Possible causes of this issue include damaged air lines, defective airbags, or a failed solenoid valve.
If you notice a C1000 fault code, it means there is a general fault in the WS unit’s control module. This code often appears alongside other specific fault codes, indicating a problem with the control module itself. In this case, you’ll need to take your Mercedes Atego to an experienced technician for diagnostics and repairs.
In conclusion, troubleshooting fault codes in the Mercedes Atego WS unit requires some technical knowledge and expertise. However, by understanding common issues, symptoms, causes, and solutions, you can identify and fix problems quickly and efficiently. If you’re not confident in your ability to troubleshoot and repair your vehicle, it’s always best to seek professional help from a qualified technician.
| ERROR CODES | EXAPTATION |
|---|---|
| 0122 | CAN bus overload |
| 0123 | Functional failure of the CAN data bus |
| 0132 | The life cycle data of the WS control unit is incorrect. |
| 0133 | The parameters of the WS control unit are incorrect. |
| 0135 | Internal error in the control unit |
| 0138 | Internal error in the control unit |
| 0139 | Internal error in the control unit |
| 0150 | Waiting time for receiving CAN data BU ABS |
| 0151 | Waiting time for receiving CAN data BU GS |
| 0152 | Waiting time for receiving CAN data BU FR |
| 0153 | Waiting time for receiving CAN data CAN data reception BU MR |
| 0154 | Waiting time for CAN data reception BU RS |
| 0155 | Waiting time for CAN data reception BU FR |
| 0156 | Waiting time for CAN data reception BU MR |
| 0157 | Waiting time for receiving CAN data BU INS |
| 0158 | Waiting time for receiving CAN data BU BS |
| 0159 | Waiting time for receiving CAN data BU GS |
| 0201 | Gearbox oil temperature sensor has a fault “Short circuit to ground”. |
| 0202 | The measurement range of the gearbox oil temperature sensor has been exceeded. |
| 0205 | The measured value of the gearbox oil temperature sensor is unreliable. |
| 0210 | The maximum allowable gearbox oil temperature has been exceeded. |
| 0301 | The transfer case temperature sensor has a “Short to Ground” fault. |
| 0302 | The measurement range of the transfer case temperature sensor has been exceeded. |
| 0305 | The measured value of the transfer case temperature sensor is unreliable. |
| 0310 | The maximum allowable transfer case oil temperature has been exceeded. |
| 0401 | The front axle temperature sensor has a “Short to Ground” fault. |
| 0402 | Front axle temperature sensor measurement range exceeded. |
| 0405 | The measured value of the front axle temperature sensor is unreliable. |
| 0410 | The maximum allowable oil temperature of the front axle gearbox has been exceeded. |
| 0501 | The rear axle temperature sensor has a “Short to Ground” fault. |
| 0502 | The measurement range of the rear axle temperature sensor has been exceeded. |
| 0505 | The measured value of the rear axle temperature sensor is unreliable. |
| 0510 | The maximum permissible oil temperature of the rear axle gearbox has been exceeded. |
| 0601 | The condensed liquid sensor has a “Short Circuit” to ground fault. |
| 0604 | The condensed liquid sensor has an “Open Circuit” fault. |
| 0605 | Invalid measured value of the condensate sensor. |
| 1011 | Too much difference in brake pad wear between the brakes of the 1st front axle. |
| 1012 | Too much difference in brake pad wear between the 1st front axle and other axles. |
| 1111 | Too much difference in brake pad wear between the brakes of the 2nd front axle. |
| 1112 | Too much difference in brake pad wear between the 2nd front axle and other axles. |
| 1211 | Too much brake pad wear difference between the brakes of the 1st rear axle. |
| 1212 | Too much difference in brake pad wear between the 1st rear axle and other axles. |
| 1311 | Too much difference in brake pad wear between the brakes of the 2nd rear axle. |
| 1312 | Too much difference in brake pad wear between the 2nd rear axle and other axles. |
| 1401 | Short circuit of the signal wire of the left brake pad wear sensor of the 1st front axle. |
| 1402 | The measured wear value of the brake pads of the 1st front axle on the left is above the measuring range. |
| 1403 | The measured value of the wear of the brake pads of the 1st front axle on the left is below the measuring range. |
| 1404 | Breakage of the signal wire of the left brake pad wear sensor of the 1st front axle. |
| 1405 | Invalid measured wear of the brake pads of the 1st front axle on the left. |
| 1420 | Failure of the CAN signal for wear of the brake pads of the 1st front axle on the left |
| 1501 | Short circuit of the signal wire of the right brake pad wear sensor of the 1st front axle. |
| 1502 | The measured wear value of the brake pads of the 1st front axle on the right is above the measurement range. |
| 1503 | The measured wear value of the brake pads of the 1st front axle on the right is below the measurement range. |
| 1504 | Breakage of the signal wire of the right brake pad wear sensor of the 1st front axle. |
| 1505 | Invalid measured wear value of the brake pads of the 1st front axle on the right. |
| 1520 | Failure of the CAN signal for wear of the brake pads of the 1st front axle on the right |
| 1601 | Short circuit of the signal wire of the left brake pad wear sensor of the 2nd front axle. |
| 1602 | The measured wear value of the brake pads of the 2nd front axle on the left is above the measurement range. |
| 1603 | The measured value of the wear of the brake pads of the 2nd front axle on the left is below the measuring range. |
| 1604 | Breakage of the signal wire of the left brake pad wear sensor of the 2nd front axle. |
| 1605 | Invalid measured wear of the brake pads of the 2nd front axle on the left. |
| 1620 | Failure of the CAN signal for wear of the brake pads of the 2nd front axle on the left |
| 1701 | Short circuit of the signal wire of the right brake pad wear sensor of the 2nd front axle. |
| 1702 | The measured wear value of the brake pads of the 2nd front axle on the right is above the measuring range. |
| 1703 | The measured wear value of the brake pads of the 2nd front axle on the right is below the measuring range. |
| 1704 | Breakage of the signal wire of the right brake pad wear sensor of the 2nd front axle. |
| 1705 | Invalid measured wear value of the brake pads of the 2nd front axle on the right. |
| 1720 | Failure of the CAN signal for brake pad wear of the 2nd front axle on the right |
| 1801 | Short circuit of the signal wire of the left brake pad wear sensor of the 1st rear axle. |
| 1802 | The measured wear value of the brake pads of the 1st rear axle on the left is above the measuring range. |
| 1803 | The measured wear value of the brake pads of the 1st rear axle on the left is below the measuring range. |
| 1804 | Breakage of the signal wire of the left brake pad wear sensor of the 1st rear axle. |
| 1805 | Unreliable measured wear value of the brake pads of the 1st rear axle on the left. |
| 1820 | Failure of the CAN signal for wear of the brake pads of the 1st rear axle on the left |
| 1901 | Short circuit of the signal wire of the right brake pad wear sensor of the 1st rear axle. |
| 1902 | The measured wear value of the brake pads of the 1st rear axle on the right is above the measurement range. |
| 1903 | The measured wear value of the brake pads of the 1st rear axle on the right is below the measuring range. |
| 1904 | Breakage of the signal wire of the right brake pad wear sensor of the 1st rear axle. |
| 1905 | Unreliable measured wear value of the brake pads of the 1st rear axle on the right. |
| 1920 | Failure of the CAN signal for wear of the brake pads of the 1st rear axle on the right . |
| 2001 | Short circuit of the signal wire of the left brake pad wear sensor of the 2nd rear axle. |
| 2002 | The measured value of the wear of the brake pads of the 2nd rear axle on the left is above the measuring range. |
| 2003 | The measured value of the wear of the brake pads of the 2nd rear axle on the left is below the measuring range. |
| 2004 | Breakage of the signal wire of the left brake pad wear sensor of the 2nd rear axle. |
| 2005 | Unreliable measured wear value of the brake pads of the 2nd rear axle on the left. |
| 2020 | Failure of the CAN signal for wear of the brake pads of the 2nd rear axle on the left |
| 2101 | Short circuit of the signal wire of the right brake pad wear sensor of the 2nd rear axle. |
| 2102 | The measured wear value of the brake pads of the 2nd rear axle on the right is above the measuring range. |
| 2103 | The measured wear value of the brake pads of the 2nd rear axle on the right is below the measuring range. |
| 2104 | Breakage of the signal wire of the right brake pad wear sensor of the 2nd rear axle. |
| 2105 | Invalid measured wear of the brake pads of the 2nd rear axle on the right. |
| 2120 | Failure of the CAN signal for wear of the brake pads of the 2nd rear axle on the right |
| 2205 | Invalid measured value (path signal) of the tachograph. |
| 2320 | Failure of the CAN signal ‘Residual pressure circuit 1 or 2’ (INS) |
| 3105 | Invalid speed signal SZ. |
| 3120 | Failure of the SZ speed signal on CAN |
| 3220 | Failure of the speed signal on CAN |
| 3320 | Failure of the engine torque setpoint signal on CAN |
| 3420 | Failure of the outside air temperature measured value signal on CAN |
| 3520 | Failure measured value CAN signal dirty air filter |
| 4105 | Invalid measured oil temperature in the retarder (retarder). |
| 4110 | The maximum allowable oil temperature in the retarder (retarder) has been exceeded. |
| 4120 | Failure of the CAN signal of the measured value of the oil temperature in the retarder (retarder) |
| 5105 | Invalid measured value of the oil temperature in the engine. |
| 5110 | The maximum allowable oil temperature in the engine has been exceeded. |
| 5113 | Incorrect engine oil viscosity. |
| 5120 | Failure of the CAN signal of the measured oil temperature in the engine |
| 5205 | Invalid measured value of the coolant temperature. |
| 5210 | The maximum allowable coolant temperature has been exceeded. |
| 5220 | CAN signal failure of measured coolant temperature value |
| 5320 | CAN signal failure of fuel consumption measured value |
| 7120 | CAN signal failure of clutch actual value |
