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
B1704Autolight sensor open20Body
B1705Display panel control unit lost communication with Gauge control module24Body
B1706Power seat control unit lost communication with Gauge control module25Body
B17071F = Door Lock / Unlock Circuit Fault26Body
B17081F = Power Folding Mirrors Output Circuit Fault23Body
B1709Left side air curtain resistance low23Body
B170ALeft side air curtain resistance high6Body
B170BFuel filler cover control switch status failure6Body
B170CChild lock or automatic high beam/low beam switch button failure11Body
B1710Airbag Lamp Fault20Body
B1711The child lock status is inconsistent with the right rear door lock status21Body
B1712mirror switch input shorted to ground21Body
B1713mirror switch R down input stuck high18Body
B1714Autolight sensor fail16Body
B1715Transmission MIL Fault16Body
B1716Passenger knee airbag impedance large16Body
B171701Die Leseleuchte vorn links hat Funktionsstörung. Es liegt ein allgemeiner elektrischer Fehler vor.1Body
B1718power folding mirror switch input circuit high15Body
B1719Left knee airbag short to power10Body
B171B01Die Leseleuchte vorn rechts hat Funktionsstörung. Es liegt ein allgemeiner elektrischer Fehler vor.1Body
B171E00The WLAN module has a malfunction.1Body
B171E05The WLAN module has a malfunction. There is a programming fault.1Body
B171E53WLAN deactivated by routine1Body
B1720mirror up and down control switch circuit18Body
B1721mirror left and right control switch circuit18Body
B1722Immobilizer-antenna fail19Body
B1723mirror motor control circuit 1 performance21Body
B1724Falla Circuito 2 Control Motor Espejo19Body
B1725Immobilizer-CAN massage fail22Body
B1726Immob-too much challenge receive21Body
B172601The Ethernet switch has a malfunction. There is a general electrical fault.1Body
B172604The Ethernet switch has a malfunction. There is an internal fault.1Body
B172605The Ethernet switch has a malfunction. There is a programming fault.1Body
B172651The Ethernet switch has a malfunction. The component is not programmed.1Body
B172657The Ethernet switch has a malfunction. Incorrect or incompatible software modules were detected.1Body
B1727Left front door handle fault19Body
B172701Die Spiegelleuchte 'Kosmetikspiegel vorn' hat Funktionsstörung. Es liegt ein allgemeiner elektrischer Fehler vor.1Body
B172709Die Spiegelleuchte 'Kosmetikspiegel vorn' hat Funktionsstörung.Es liegt ein Bauteilfehler vor.1Body
B172711The mirror lamp 'Front vanity mirror' has a malfunction. There is a short circuit to ground.1Body
B1728Right front door handle fault18Body
B1729Left rear door handle fault19Body
B172B11Der Ausgang der Fußraumbeleuchtung vorn hat Funktionsstoerung. Es liegt ein Kurzschluss nach Masse vor.1Body
B172B15Der Ausgang der Fußraumbeleuchtung vorn hat Funktionsstoerung. Es liegt ein Kurzschluss nach Plus oder eine Unterbrechung vor.1Body
B1730Locking/super locking motor shared output fault22Body
B1731Locking/unlocking motor control failure17Body
B1733Keyless unlocking priority control fault5Body
B173300Die Taste 'Innenbeleuchtung' klemmt.3Body
B1734Left front door access lock sensor fault10Body
B17342ADie Taste 'Leselicht' vorn links klemmt. Keine Signaländerung.1Body
B1735Driver seat front up switch circuit malfunction12Body

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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