Fault code lookup

Mercedes-Benz fault codes

20,291 codes · 1,724 vehicle records · 258 ECU records · 56,350 live-data parameters

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Codes 20,291

CodeDescriptionBrandsSystem
B184911Glass motor CW pin connected to Battery.2Body
B184915Glass motor CCW pin connected to Battery.1Body
B184916The actuator motor 'Roof system' has a malfunction. Circuit voltage below threshold.1Body
B184917The actuator motor 'Roof system' has a malfunction. Circuit voltage above the threshold.1Body
B184944The actuator motor 'Roof system' has a malfunction. Roof system is denormalized.1Body
B184946The TNI performance of actual glass panel motor exceeds boundaries of that programmed in SCU NVM.1Body
B184951Der Schiebe-Hebedach-Motor hat Funktionsstörung. Das Bauteil ist nicht programmiert1Body
B184971The actuator motor 'Roof system' has a malfunction. Actuator stuck.1Body
B184996The actuator motor 'Roof system' has a malfunction. Component Internal Failure.1Body
B184998The actuator motor 'Roof system' has a malfunction. Component over temperature.1Body
B184A71Das Stellglied 'Bugwelle' ist blockiert.1Body
B184A77Die befohlene Position der Bugwelle wurde nicht erreicht1Body
B184D96Die Kontrollleuchte 'Fahrwerk' hat Funktionsstörung. (Es liegt ein interner Komponentenfehler vor.)1Body
B1850driver lumbar horiz sensor circuit malfunction15Body
B185009No description available1Body
B1851Driver lumbar horizontal sensor circuit performance15Body
B185109No description available1Body
B1852Collision signal connection17Body
B185209No description available1Body
B185248No description available1Body
B1853Collision signal communication14Body
B185316Die Antriebseinheit 'Heckspoiler' hat Funktionsstörung. Unterspannung aktiv (DTC0x985316)1Body
B185317Die Antriebseinheit 'Heckspoiler' hat Funktionsstörung. berspannung aktiv (DTC0x985317)1Body
B185348The drive unit 'Rear spoiler' has a malfunction. Supervision Software Failure1Body
B1854Tel antenna connection11Body
B185400Die Kühlmittelpumpe der Klimaanlage läuft trocken.1Body
B1855Lumbar Support Horizontal Feedback Circuit14Body
B1856e-Call speaker connection15Body
B185646The signal signalizes if auto aim can't finish the self calibration process1Body
B1857Microphone connection14Body
B185700Coax error that makes display mode not available for the driver1Body
B1858Power trunk lid unit lost communication with MICU14Body
B185804camera error that makes display mode not available for the driver1Body
B185829auxiliary video signal is missing or corrupted for auxiliary camera enabled1Body
B1859e-Call SW13Body
B185D9AControl unit 'Left front door handle' has a malfunction. The operating conditions for the component or the system are not satisfied.1Body
B185E1CControl unit 'Right front door handle' has a malfunction. The voltage value is outside the permissible range.1Body
B185E9AControl unit 'Right front door handle' has a malfunction. The operating conditions for the component or the system are not satisfied.1Body
B185F11The power supply of control unit 'Left rear door handle' has a malfunction. There is a short circuit to ground.1Body
B1860Battery voltage too high16Body
B1861Battery voltage too low17Body
B18619AControl unit 'Left rear door handle' has a malfunction. The operating conditions for the component or the system are not satisfied.1Body
B1862System startup error17Body
B18621CControl unit 'Right rear door handle' has a malfunction. The voltage value is outside the permissible range.1Body
B18629AControl unit 'Right rear door handle' has a malfunction. The operating conditions for the component or the system are not satisfied.1Body
B1863BT Communication error17Body
B186300Das Steuergerät 'Leuchtdiodenband' im Cockpit links hat Funktionsstörung.1Body
B186345Das Steuergerät 'Leuchtdiodenband' im Cockpit links hat Funktionsstörung. Es liegt ein Fehler im Programmspeicher vor.1Body
B186398Das Steuergerät 'Leuchtdiodenband' im Cockpit links hat Funktionsstörung. Die Komponente oder das System hat Übertemperatur.1Body
B18639AControl unit 'Light-emitting diode strip' in the left cockpit has a malfunction. The operating conditions for the component or the system are not satisfied.1Body

Some brand data is extracted from diagnostic files and may contain manufacturer-specific wording. General SAE J2012 descriptions are used where available.

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