Mercedes Atego FR unit Fault Codes

On: Monday, November 20, 2023 11:40 PM
mercedes atego fr unit fault codes

The FR unit in your Mercedes Atego is responsible for controlling various functions of the vehicle, including the engine, gearbox, and brakes. If the FR unit is showing fault codes, it means there’s an issue with one of these systems. Decoding these codes is essential for diagnosing and repairing the issue.

Mercedes Atego FR unit fault codes are typically displayed as a series of digits or letters on the FR unit display. These codes can be read using a diagnostic tool, which is commonly available at auto parts stores or can be purchased online. Once you’ve obtained the code, you can use our guide to decode it and determine the issue with your vehicle.

Our guide provides a comprehensive list of Mercedes Atego FR unit fault codes, along with their meanings and potential causes. Some of the most common fault codes include issues with the engine control unit, transmission control unit, and ABS system.

It’s important to note that while fault codes can help diagnose issues with your Mercedes Atego, they’re not always 100% accurate. Sometimes, multiple codes may be triggered at once, or a code may be triggered due to a faulty sensor rather than an actual issue with the component. If you’re unsure about the issue with your Mercedes Atego, it’s always best to consult with a professional mechanic.

In conclusion, decoding Mercedes Atego FR unit fault codes is essential for any Mercedes Atego owner. With our guide, you can decode the codes and troubleshoot the issue with your vehicle, saving you time and money on repairs.

ERROR CODESEXAPTATION
0110CAN message from the anti-lock braking system ABS control unit is missing or incorrect.
0111The value measured by the GS control unit is unreliable.
0112CAN message from the control unit is missing or incorrect.
0113CAN message from the control unit RS retarder control is missing or incorrect.
0114CAN message from the instrument cluster INS control unit is missing or incorrect.
0115CAN message from the PSM control unit of the parameterized special module is missing or incorrect.
0117The value measured by the torque converter clutch control unit WSK is unreliable.
0119The value measured by the KWS control unit is unreliable.
0180The value measured by the ART control unit is unreliable.
0201Engine CAN to the MR control unit in single-wire operation mode
0202CAN message from the MR control unit is missing or incorrect.
0203Engine CAN to MR control unit: open circuit
0306Engine CAN to FLA system: open circuit
0416The High-Speed-CAN bus has failed for more than 100 m / s.
0418The High-Speed-CAN bus has failed.
0501GB CAN bus in single-wire mode
0508GB CAN bus does not output data.
0584‘KR’ function limitation
0681Automatic gear selection system failed
0682Automatic gear selection system in emergency mode
0783Error while requesting data
1120Connector ‘D+’ has a short to positive.
1125The ‘D +’ connector on pin X4 18/13 is unreliable or has an open circuit or a short to ground.
1223Clutch pedal switch 1 on pin X1 18/1 has an open circuit or is misaligned.
1421The brake light switch has an open circuit or is incorrectly adjusted.
1423The brake light switch on contact X118 / 11 has a short circuit.
1523The tempomat-temposet switch is faulty.
1524The tempomat-temposet switch is faulty.
1526Input ‘Quit’ tempomat switch is open.
1623Clutch pedal sensor 1 and 2: incorrect adjustment or sensor stuck
1723The neutral position switch on contact X418 / 16 is defective or stuck.
1923The divider switch on contacts X2 18/11 and X2 18/12 has an open circuit or is erroneous.
2023Faulty engine brake switch of the engagement lever ‘Engine / retarder control’
2120Output X1 18/13 has a short to positive.
2122Output X1 18/13 has a short to ground.
2520Switch block 1/4 has a short to positive.
2522Switch block 1/4 has a short to ground.
2620Switch block 2/3 has a short to positive.
2622Switch block 2/3 has a short to ground.
2720The oil level sensor in the automatic refueling of engine oil M2 has a short to positive.
2823Dual ART key control
2923Shift lever module implausible
2927GS sensor unit pinched.
2928The GS sensor unit is defective.
2929The ‘Auto/Manual’ key of the GS sensor block is stuck.
3021Terminal 30 is open.
3031Terminal 30: high voltage
3032Terminal 30: low voltage
3130The coolant level sensor XZ 15/11 or the air filter control sensor XZ 15/1 is faulty, the power supply XZ 15/13 has an open circuit or a short to positive or ground.
3233The air filter control sensor is faulty.
3236The air filter contamination limit has been reached.
3330The outdoor temperature sensor has an open circuit / short to positive / ground
3430The clutch stroke sensor has an open circuit, a short to ground or a short to positive.
3533Faulty coolant level sensor.
3634Reached max, wear of the friction linings of the clutch.
3635Clutch displacement sensor out of range
4141Signal ‘KGT input RPM invalid.
4145Gearbox input speed sensor: open circuit / short to positive / ground
4341Invalid speed signal (V)
4345The speed signal has an open circuit or short to ground or positive.
4440The first branch of the gas pedal sensor has an open circuit or a short to ground or positive.
4540The second branch of the gas pedal sensor has an open circuit or a short to ground or positive.
4641Faulty gas pedal sensor
4642The gas pedal sensor does not reach the idle stop.
4643The value of the gas pedal sensor is out of the parameterized range
4644The gas pedal sensor is tight
5052The solenoid valve 1 on the XZ 15/4 contact has a short to ground.
5053Solenoid valve 1 on contact XZ 15/4 has a short to positive.
5054Solenoid valve 1 on contact XZ 15/4 has an open circuit.
5152Solenoid valve 2 on contact XZ 15/7 has a short to ground.
5153Solenoid valve 2 on contact XZ 15/7 has a short to positive.
5154Solenoid valve 2 on contact HZ 15/7 has an open circuit.
5252The common ground wire of the constant throttle solenoid valve and retarder has a short to ground.
5253The common ground wire of the constant throttle solenoid valve and retarder has a short to positive.
5352Solenoid valve ‘Split 1’ has a short to ground.
5353Solenoid valve ‘Split 1’ has a short to positive.
5354The ‘Split 1’ solenoid valve has an open circuit.
5452Solenoid valve ‘Split 2’ has a short to ground.
5453Solenoid valve ‘Split 2’ has a short to positive.
5454‘Split 2’ solenoid valve has an open circuit.
5552The common ground wire of the solenoid valves Y29 and Y30 has a short to ground.
5553The common ground wire of the solenoid valves Y29 and Y30 has a short to positive.
5652The brake light control signal output has a short to ground.
5653The brake light control output has a short to positive.
5654The output ‘Activation of the brake light’ has an open circuit.
5752The output “Control of the reversing lights” has a short to ground.
5753The “Reversing Light Control” output has a short to positive.
5754The output “Control of the reversing lights” has an open circuit.
5852The output “Activation D +” has a short to ground.
5853The output “Activation D +” has a short to positive.
5854The output “Activation D +” has an open circuit.
5952Activation of automatic refueling of engine oil has a short to ground.
5953Activation of automatic refueling of engine oil has a short to positive.
5954The activation of automatic refueling of engine oil has an open circuit.
6262Internal error in the control unit.
6265Internal error in the control unit.
6365Internal error in the control unit.
7064Internal error in the control unit.
7070The gas pedal unit is not trained
7071Initialization (learning) error of the gear ratio of the divider
7072Initialization (learning) error of the gear ratio of terminal W
7073Learning error of the clutch displacement sensor
7074Initialization (learning) error on the CAN bus
8023Switch position HL5 implausible

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