Mercedes Atego INS unit Fault Codes

The Mercedes Atego INS unit is a critical component of your vehicle’s braking system. It is responsible for controlling the ABS (anti-lock braking system) and ESP (electronic stability program) functions, ensuring that your truck stays stable and safe 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, making it difficult to pinpoint the problem.

If you’re experiencing problems with your Mercedes Atego INS 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 INS unit is C1024. This code indicates a problem with the brake light switch. Symptoms of this fault include the ABS and ESP warning lights turning on or staying on, even after starting the engine. The main cause of this issue is a faulty brake light switch, which needs to be replaced.

Another common fault code is C1008, which points to a malfunction in the steering angle sensor. This code usually occurs when there is a problem with the sensor’s calibration or wiring, causing incorrect readings. Possible causes of this issue include damaged wiring, a failing sensor, or an electrical fault.

If you notice a C1000 fault code, it means there is a general fault in the INS 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 INS 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.

0101 Sensor power supply ‘Residual pressure in the brake circuit T has a short to ground.
0102 Sensor power supply ‘Residual pressure in the brake circuit T has a short to positive.
0104 The value of the signal input of the sensor ‘System pressure in the brake circuit G is below the range.
0105 Exceeding the range of the signal input of the sensor ‘System pressure in the brake circuit D.
0201 Sensor power supply ‘Residual pressure in the brake circuit 2’ has a short to ground.
0202 Sensor power supply ‘Residual pressure in the brake circuit 2’ has a short to positive.
0204 The value of the signal input of the sensor ‘System pressure in the brake circuit 2’ is below the range.
0205 Exceeding the range of the signal input of the sensor ‘System pressure in the brake circuit 2’.
0301 Unlocking the cab has a short to ground.
0308 Unlocking the cab has an open circuit or a short to positive.
0508 The fuel reserve sensor has an open circuit or a short to positive.
0607 Input ‘Terminal W’ has an open circuit or a short to ground.
0901 Wire K has a short to ground.
1020 The vehicle CAN bus is faulty
1100 The state of the digital input X418 / 18 ‘The left turn signal indicator of the tractor 1 is unreliable.
1101 The status of the digital input X418 / 18 ‘Right tractor turn signal indicator’ is unreliable.
1102 The status of the digital input X118 / 15 ‘Left trailer turn signal indicator’ is unreliable.
1103 The state of the digital input X118 / 3 ‘Right trailer turn signal indicator’ is unreliable.
1104 The state of the digital input X218 / 1 ‘Control lamp ‘Airbag’ is unreliable.
1105 The state of the digital input X318 / 5 ‘high beam’ is unreliable.
1106 The status of the digital input HZ 18/8 ‘Terminal 58’ is unreliable.
1107 The status of the digital input X318 / 13 ‘Reserve’ is unreliable.
1108 The status of the digital input X418 / 3 ‘Differential lock on the 1st rear axle’ is implausible.
1109 The state of the digital input X418 / 4 ‘Differential lock on the 2nd rear axle’ is implausible.
1110 The state of the digital input X418 / 10 ‘Differential lock on the 1st front axle’ is implausible.
1111 The status of the digital input X418 / 11 ‘Creeping gear’ is unreliable.
1112 The state of the digital input X418 / 2 ‘Rear center differential lock’ is unreliable.
1113 The state of the digital input X418 / 12 ‘Locking the center differential of the transfer case 1 is unreliable.
1114 The state of the digital input X418 / 1 ‘KP in the neutral position’ is unreliable.
1115 The state of the digital input X418 / 13 ‘Power take-off mechanisms’ is unreliable.
1116 Status of digital input X318/7 ‘Holding brake’ implausible.
1117 The state of the digital input X318 / 14 ‘Secondary consumers’ is unreliable.
1118 Status of digital input HZ 18/9 ‘System pressure in circuit 3’ is unreliable.
1119 The status of the digital input X418 / 17 ‘Trailer ABS failure’ is unreliable.
1120 The status of the digital input X418 / 14 ‘Unlocking the driver’s cab on the left’ is implausible.
1121 The status of the digital input X418 / 15 ‘Unlocking the driver’s cab on the right’ is implausible.
1122 The status of the digital input X418 / 6 ‘Tipper control indicator lamp’ is unreliable.
1123 The status of the digital input X418 / 7 ‘Lamp failure control’ is implausible.
1124 Status of digital input X418 / 16 ‘Power steering oil level’ is implausible.
1125 The state of the digital input X318 / 15 ‘Power steering’ is unreliable.
1126 The status of digital input X318 / 6 ‘Door limit switch’ is implausible.
1127 The state of the digital input X418 / 5 ‘Reserve washer fluid volume’ is unreliable.
1128 The status of the digital input X418 / 8 ‘Seat belt indicator’ is implausible.
1129 The state of the digital input X218 / 2 ‘Reserve’ is unreliable.
1137 The status of the digital input X118 / 12 ‘Reserve’ is unreliable.
1138 The status of the digital input X218/10 ‘Terminal 15R’ is implausible.
1139 The status of the digital input X218 / 11 ‘Reserve’ is unreliable.
1140 Status of digital input X218/12 ‘Cross rocker switch UP’ is implausible.
1432 Internal error in the control unit
1520 The CAN bus to the tachograph is out of order.
1903 Terminal 15 has a break.
1941 Overvoltage at terminal 30
1942 Undervoltage at terminal 30
2515 There is no text file in the instrument cluster
3002 The FR control unit is out of order.
3003 The FPS control unit has failed
3005 The SPA (Lane Control System) control unit has failed.
3006 The PFA control unit (particulate filter) has failed.
3007 The FLA control unit (ignition system) has failed.
3009 The GS control unit (gear control) has failed.
3010 The AGN (Commercial Vehicle Automatic Gearbox) control unit has failed.
3013 The WSK control unit (torque converter clutch) has failed.
3014 The ABS control unit has failed.
3015 The RS control unit (retarder) has failed.
3017 The NR control unit (level control) has failed.
3020 The ZL control unit (thruster) has failed.
3021 The INS control unit (instrument cluster) has failed.
3024 The WS control unit (TO system) has failed.
3026 The PTO control unit (communication connector) has failed.
3027 The GW control unit (gateway) has failed.
3030 The KWS control unit has failed.
3031 The HPS control unit (hydropneumatic activation) has failed.
3033 The LLP control unit (tachograph) is out of order.
3034 The LWS control unit (steering wheel angle sensor) has failed.
3036 The BS control unit (brake system control) has failed.
3037 The RDK control unit tire pressure monitoring system has failed.
3038 The AG control unit has failed.
3040 The MR control unit has failed.
3044 The EDW (anti-theft alarm system) control unit has failed.
3046 The PSM control unit (parameterizable special module) has failed.
3049 The ART (Tempomat) control unit has failed.
3054 The NOX control unit has failed.
3057 The NRN control unit has failed.
3059 The navigation control unit has failed.
3060 The TR control unit (Telematik platform) has failed.
3062 The control unit of the audio module has failed.
3066 The FFS control unit has failed.
3105 The control unit AH 1 failed.
3106 The control unit AN2 failed.
3107 The AFI3 control unit has failed.
3108 The AN4 control unit has failed.
3109 The AFI5 control unit has failed.
3110 The AUF control unit (cabin electronics) has failed.
3620 Failure of the condensate sensor
3720 Failure of the brake pad wear indicator
4002 Non-parameterizable control unit FR is recognized.
4003 The non-parameterizable FPS control unit is recognized.
4005 Non-parameterized control unit SPA (Lane Assistance System) is recognized.
4006 Non-parameterizable PFA control unit (diesel particulate filter) is recognized.
4007 Non-parameterizable control unit FLA (ignition system) is recognized.
4008 The non-parameterizable KS control unit (gearbox control) is recognized.
4009 Non-parameterizable control unit GS (gear control) is recognized.
4010 The non-parameterized AGN control unit is recognized.
4013 Non-parameterized control unit WSK is recognized.
4014 Non-configurable ABS control unit is recognized.
4015 The non-configurable RS control unit (retarder control) is recognized.
4017 Non-parameterizable control unit NR (level control) is recognized.
4020 Non-parameterizable control unit ZL (thruster) is recognized.
4021 The non-parameterizable INS control unit is recognized.
4024 Non-parameter control unit WS (service system) is recognized.
4026 Non-parameterized control unit KOM (communication interface) is recognized.
4027 Non-parameterizable GW control unit (gateway) is recognized.
4030 The non-configurable KWS control unit is recognized.
4031 Non-parameterizable HPS control unit (hydropneumatic actuation) is recognized.
4033 The non-parameterized control unit LLP (tachograph) is recognized.
4034 The non-configurable LWS control unit (steering wheel angle sensor) is recognized.
4036 Non-parameterizable control unit BS (brake system control) is recognized.
4037 The non-parameterizable RDK control unit (tire pressure monitoring system) is recognized.
4038 Non-parameter control unit AG is recognized.
4040 Non-parameterizable control unit MR (engine regulation) is recognized.
4044 The non-configurable EDW control unit (anti-theft alarm system) is recognized.
4046 The non-parameterizable PSM control unit (parameterizable special module) is recognized.
4049 Non-parameter control unit ART (Tempomat) is recognized.
4054 The non-parameterizable NOX control unit is recognized.
4057 The non-parameterizable NRN control unit is recognized.
4059 Non-configurable control unit of the navigation system is recognized.
4060 Non-parameterizable control unit TP (Telematik platform) is recognized.
4062 The non-configurable control unit of the audio module is recognized.
4066 The non-parameterized FFS control unit is recognized.
4105 Non-configurable control unit ‘trailer 1’ is recognized.
4106 Non-configurable control unit ‘trailer 2’ is recognized.
4107 Non-configurable control unit ‘trailer 3’ is recognized.
4108 Non-configurable control unit ‘trailer 4’ is recognized.
4109 Non-configurable control unit ‘trailer 5’ is recognized.
4110 The non-parameterizable AUF control unit (cab electronics) is recognized.
4202 The FR control unit responds to a diagnostic request, although it is parameterized as not diagnosable.
4203 The FPS control unit responds to a diagnostic request, although it is parameterized as undiagnosable.
4205 The SPA control unit (lane control system) responds to a diagnostic request, although it is parameterized as undiagnosable.
4206 The PFA control unit (diesel particulate filter) responds to a diagnostic request, although it is parameterized as undiagnosable.
4207 The FLA control unit (ignition system) responds to a diagnostic request, although it is parameterized as undiagnosable.
4208 The KS control unit responds to a diagnostic request, although it is parameterized as not diagnosable.
4209 The GS control unit responds to a diagnostic request, although it is parameterized as undiagnosable.
4210 The AGN control unit responds to a diagnostic request, although it is parameterized as undiagnosable.
4213 The WSK control unit (torque converter clutch) responds to a diagnostic request, although it is parameterized as undiagnosable.
4214 The ABS control unit responds to a diagnostic request, although it is parameterized as undiagnosable.
4215 The RS control unit (retarder control) responds to a diagnostic request, although it is parameterized as undiagnosable.
4217 The NR control unit (level control) responds to a diagnostic request, although it is parameterized as undiagnosable.
4220 The ZL control unit (thruster) responds to a diagnostic request, although it is parameterized as not diagnosable.
4221 The INS control unit responds to a diagnostic request, although it is parameterized as undiagnosable.
4224 The WS control unit (service system) responds to a diagnostic request, although it is parameterized as not diagnosable.
4226 The PTO control unit responds to a diagnostic request, although it is parameterized as undiagnosable.
4227 The GW control unit (gateway) responds to a diagnostic request, although it is parameterized as undiagnosable.
4230 The KWS control unit responds to a diagnostic request even though it is parameterized as undiagnosable.
4231 The FIPS control unit responds to a diagnostic request, although it is parameterized as undiagnosable.
4233 The TCO control unit responds to a diagnostic request, although it is parameterized as undiagnosable.
4234 The LWS control unit (steering wheel angle) responds to a diagnostic request, although it is parameterized as not diagnosable.
4236 The BS control unit responds to a diagnostic request although it is parameterized as not diagnosable.
4237 The RDK control unit (tire pressure monitoring system) responds to a diagnostic request, although it is parameterized as undiagnosable.
4238 The AG control unit responds to a diagnostic request, although it is parameterized as not diagnosable.
4240 The MR control unit (engine regulation) responds to a diagnostic request, although it is parameterized as undiagnosable.
4244 The EDW control unit (anti-theft alarm system) responds to a diagnostic request, although it is parameterized as undiagnosable.
4246 The PSM control unit (parameterizable special module) responds to a diagnostic request, although it is parameterized as not diagnosable.
4249 The ART control unit (Tempomat) responds to a diagnostic request, although it is parameterized as undiagnosable.
4254 The OX control unit responds to a diagnostic request, although it is parameterized as undiagnosable.
4257 The NRN control unit responds to a diagnostic request, although it is parameterized as not diagnosable.
4259 The navigation control unit responds to a diagnostic request, although it is parameterized as undiagnosable.
4260 The TP control unit (Telematik platform) responds to a diagnostic request, although it is parameterized as undiagnosable.
4262 The control unit of the audio module responds to a diagnostic request, although it is parameterized as undiagnosable.
4266 The FFS control unit responds to a diagnostic request, although it is parameterized as undiagnosable.
4305 ANN control unit 1 responds to a diagnostic request, although it is parameterized as undiagnosable.
4306 The AH2 control unit responds to a diagnostic request, although it is parameterized as undiagnosable.
4307 The ANZ control unit responds to a diagnostic request, although it is parameterized as undiagnosable.
4308 The AFI4 control unit responds to a diagnostic request, although it is parameterized as undiagnosable.
4309 The AFI5 control unit responds to a diagnostic request, although it is parameterized as undiagnosable.
4310 The AUF control unit (cabin electronics) responds to a diagnostic request, although it is parameterized as undiagnosable.