| FR(3++) | 0110 | No CAN message from ABS Anti-lock Braking System or BS brake control (EPB) or message incorrect |
| FR(3++) | 0111 | No or incorrect CAN message from control unit GS Gear control |
| FR(3++) | 0112 | No or incorrect CAN message from control unit KS clutch control |
| FR(3++) | 0113 | No or incorrect CAN message from control unit RS Retarder control |
| FR(3++) | 0114 | No or incorrect CAN message from control unit INS Instrument |
| FR(3++) | 0115 | No or incorrect CAN message from control unit PSM Parameterizable Special Module |
| FR(3++) | 0116 | Vehicle CAN bus has Open circuit or Short circuit to positive or Short circuit to ground. |
| FR(3++) | 0117 | No or incorrect CAN message from control unit WSK torque converter-clutch |
| FR(3++) | 0119 | No or incorrect CAN message from control unit KWS Articulation angle control |
| FR(3++) | 0180 | No or incorrect CAN message from control unit ART autonomous intelligent cruise control |
| FR(3++) | 0201 | Engine CAN to MR engine control in single-wire mode |
| FR(3++) | 0202 | No or incorrect CAN message from control unit MR engine control |
| FR(3++) | 0203 | Engine CAN to MR engine control interrupted |
| FR(3++) | 0306 | Engine CAN to FLA flame starting system interrupted |
| FR(3++) | 0416 | High speed CAN bus has failed for more than 100 ms. |
| FR(3++) | 0418 | High speed CAN bus has failed. |
| FR(3++) | 0682 | Fault in data communication.Control unit AGE in limp-home mode |
| FR(3++) | 0783 | Fault in data communication.Diagnosis channel not free |
| FR(3++) | 1120 | Connection 'D+' has Short circuit to positive. |
| FR(3++) | 1125 | Connection 'D+' at pin IV 18/13 is implausible or has Open circuit or Short circuit to ground. |
| FR(3++) | 1223 | Clutch pedal switch 1 at pin I 18/1 has Open circuit or is incorrectly adjusted. |
| FR(3++) | 1323 | Parking brake switch III-15/9 faulty or has short circuit. |
| FR(3++) | 1421 | Brake light switch has Open circuit or is incorrectly adjusted. |
| FR(3++) | 1423 | Brake light switch at pin I 18/11 has short circuit. |
| FR(3++) | 1523 | Cruise control Temposet switch is faulty. |
| FR(3++) | 1524 | Cruise control Temposet switch is faulty. |
| FR(3++) | 1526 | Input 'Quit' of cruise control switch is open. |
| FR(3++) | 1623 | Clutch pedal switches 1 and 2: incorrect adjustment or switches sticking |
| FR(3++) | 1723 | Neutral position switch at pin IV 18/16 is faulty or stuck. |
| FR(3++) | 1923 | Splitter switch at pins II 18/11 and II 18/12 has Open circuit or is faulty. |
| FR(3++) | 2023 | Engine brake switch of "Engine control / continuous brake" operating lever faulty |
| FR(3++) | 2120 | Square-wave output GSV 1 (pulsed switch supply) has Short circuit to positive. |
| FR(3++) | 2122 | Square-wave output GSV 1 (pulsed switch supply) has Short circuit to ground. |
| FR(3++) | 2220 | Square-wave output GSV 2 (pulsed switch supply) has Short circuit to positive. |
| FR(3++) | 2222 | Square-wave output GSV 2 (pulsed switch supply) has Short circuit to ground. |
| FR(3++) | 2320 | Square-wave output GSV 3 (pulsed switch supply) has Short circuit to positive. |
| FR(3++) | 2322 | Square-wave output GSV 3 (pulsed switch supply) has Short circuit to ground. |
| FR(3++) | 2420 | Square-wave output GSV 4 (pulsed switch supply) has Short circuit to positive. |
| FR(3++) | 2422 | Square-wave output GSV 4 (pulsed switch supply) has Short circuit to ground. |
| FR(3++) | 2520 | Switch group 1/4 has Short circuit to positive. |
| FR(3++) | 2522 | Switch group 1/4 has Short circuit to ground. |
| FR(3++) | 2620 | Switch group 2/3 has Short circuit to positive. |
| FR(3++) | 2622 | Switch group 2/3 has Short circuit to ground. |
| FR(3++) | 2720 | Output to oil level switch (3-channel ABS) has Short circuit to positive. |
| FR(3++) | 2721 | Output to oil level switch (3-channel ABS) has Open circuit. |
| FR(3++) | 2823 | Double operation of ART pushbuttons |
| FR(3++) | 3021 | Circuit 30 has Open circuit. |
| FR(3++) | 3031 | Overvoltage at terminal 30 |
| FR(3++) | 3032 | Undervoltage at terminal 30 |
| FR(3++) | 3130 | Coolant level switch 15B01 or air filter monitoring sensor 10B01 faulty, voltage supply III-15/3 has Open circuit or Short circuit to positive or Short circuit to ground. |
| FR(3++) | 3233 | Air filter monitoring sensor faulty |
| FR(3++) | 3236 | Soiling limit of air cleaner is reached. |
| FR(3++) | 3330 | Ambient air temperature sensor has Open circuit or Short circuit to positive or Short circuit to ground. |
| FR(3++) | 3430 | Sensor fault at clutch travel sensor |
| FR(3++) | 3533 | Coolant level switch is faulty. |
| FR(3++) | 3634 | Maximum wear of clutch lining is reached. |
| FR(3++) | 3635 | Clutch position sensor not within permissible range |
| FR(3++) | 4041 | 'Terminal W' signal is implausible. |
| FR(3++) | 4141 | 'Transmission input speed' signal is implausible. |
| FR(3++) | 4145 | Transmission input speed sensor has Open circuit or Short circuit to positive or Short circuit to ground. |
| FR(3++) | 4341 | Invalid speed signal |
| FR(3++) | 4345 | V-signal input has Open circuit or Short circuit to positive or Short circuit to ground. |
| FR(3++) | 4440 | The first branch of the foot throttle actuator has Open circuit or Short circuit to positive or Short circuit to ground. |
| FR(3++) | 4540 | The second branch of the foot throttle actuator has Open circuit or Short circuit to positive or Short circuit to ground. |
| FR(3++) | 4641 | Foot throttle actuator faulty |
| FR(3++) | 4642 | Foot throttle actuator does not reach idle throttle stop. |
| FR(3++) | 4643 | Foot throttle actuator not within learned range |
| FR(3++) | 4644 | Foot throttle actuator stiff in operation |
| FR(3++) | 5051 | Solenoid valve 1 (actuation of engine brake 1) has Open circuit or Short circuit to positive. |
| FR(3++) | 5052 | Solenoid valve 1 (actuation of engine brake 1) has Short circuit to ground. |
| FR(3++) | 5053 | Solenoid valve 1 (actuation of engine brake 1) has Short circuit to positive. |
| FR(3++) | 5054 | Solenoid valve 1 (actuation of engine brake 1) has Open circuit. |
| FR(3++) | 5151 | Solenoid valve 2 (actuation of engine brake 2) has Open circuit or Short circuit to positive. |
| FR(3++) | 5152 | Solenoid valve 2 (actuation of engine brake 2) has Short circuit to ground. |
| FR(3++) | 5153 | Solenoid valve 2 (actuation of engine brake 2) has Short circuit to positive. |
| FR(3++) | 5154 | Solenoid valve 2 (actuation of engine brake 2) has Open circuit. |
| FR(3++) | 5252 | MBA engine brake output valve connection has Short circuit to ground. |
| FR(3++) | 5253 | MBA engine brake output valve connection has Short circuit to positive. |
| FR(3++) | 5351 | Output IV 18/7 or IV 18/8 has Open circuit or Short circuit to positive. |
| FR(3++) | 5352 | Splitter solenoid valve 1 has Short circuit to ground. |
| FR(3++) | 5353 | Splitter solenoid valve 1 has Short circuit to positive. |
| FR(3++) | 5354 | Splitter solenoid valve 1 has Open circuit. |
| FR(3++) | 5451 | Output IV 18/7 or IV 18/10 has Open circuit or Short circuit to positive. |
| FR(3++) | 5452 | Splitter solenoid valve 2 has Short circuit to ground. |
| FR(3++) | 5453 | Splitter solenoid valve 2 has Short circuit to positive. |
| FR(3++) | 5454 | Splitter solenoid valve 2 has Open circuit. |
| FR(3++) | 5552 | Output IV 18/7 or IV 15/8 has Short circuit to ground. |
| FR(3++) | 5553 | Output IV 18/7 or IV 15/8 has Short circuit to positive. |
| FR(3++) | 5651 | 'Brake light actuation' output has Open circuit or Short circuit to positive. |
| FR(3++) | 5652 | 'Brake light actuation' output has Short circuit to ground. |
| FR(3++) | 5653 | 'Brake light actuation' output has Short circuit to positive. |
| FR(3++) | 5654 | 'Brake light actuation' output has Open circuit. |
| FR(3++) | 5751 | 'Reversing light actuation' output has Open circuit or Short circuit to positive. |
| FR(3++) | 5752 | 'Reversing light actuation' output has Short circuit to ground. |
| FR(3++) | 5753 | 'Reversing light actuation' output has Short circuit to positive. |
| FR(3++) | 5754 | 'Reversing light actuation' output has Open circuit. |
| FR(3++) | 5851 | 'Actuation of D+' output has Open circuit or Short circuit to positive. |
| FR(3++) | 5852 | 'Actuation of D+' output has Short circuit to ground. |
| FR(3++) | 5853 | 'Actuation of D+' output has Short circuit to positive. |
| FR(3++) | 5854 | 'Actuation of D+' output has Open circuit. |
| FR(3++) | 5951 | 'Automatic engine oil replenishment' actuation has Open circuit or Short circuit to positive. |
| FR(3++) | 5952 | 'Automatic engine oil replenishment' actuation has Short circuit to ground. |
| FR(3++) | 5953 | 'Automatic engine oil replenishment' actuation has Short circuit to positive. |
| FR(3++) | 5954 | 'Automatic engine oil replenishment' actuation has Open circuit. |
| FR(3++) | 6161 | Control module has an internal error. |
| FR(3++) | 6262 | Control module has an internal error. |
| FR(3++) | 7060 | Control module has an internal error. |
| FR(3++) | 7061 | Parameter error:-- |
| FR(3++) | 7064 | Control module has an internal error. |
| FR(3++) | 7070 | Accelerator pedal unit not learned |
| FR(3++) | 7071 | Learning error with splitter ratio |
| FR(3++) | 7072 | Learning error with terminal W ratio |
| FR(3++) | 7073 | Learning error with clutch travel sensor |
| FR(3++) | 7074 | Learning error at vehicle CAN bus |