Que signifie votre code Code Défaut MERCEDES ?

Grace au système OBD, les Mercedes fabriqués après 1996 sont normalement équipés d'une prise diagnostique OBD.
Si l'ordinateur de la voiture rencontre un problème,un code d'erreur ou un code de diagnostic (DTC) sera stocké dans la mémoire de l'ECU de la voiture.
Avec un lecteur OBD branché sur le port OBD (On-Board Diagnostics) de la voiture, vous pouvez lire la liste des codes stockés, et donc découvrir quel est le problème.

Les codes suivent une formule permettant de savoir généralement quel est le problème avant même de regarder le tableau ci-dessous.
Nous vous présentons ci-dessus une liste très complète des différents codes défauts possibles.
Si le code défaut de votre auto s'affiche au tableau de bord, vous n'aurez peut-être même pas besoin d'un lecteur OBD . il sera dans la liste .
Réparer le code défaut de votre auto, c'est potentiellement simple à faire avec vos revues et méthodes techniques.

Revenir aux autres catégories de codes défauts MERCEDES



Réparer le code défaut de votre auto, c’est potentiellement simple à faire avec nos revues et méthodes techniques

Code Libellé
201B Event:Fault in system Belt-driven starter/alternator
201B Gasoline mode, Misfiring of cylinder 2(Fuel deficiency).
201B Gasoline mode, Misfiring of cylinder 1.
201B Random/multiple cylinder misfire detected
201C Selfadaptation of mixture formation- The mixture is too rich in the part load range.
201E S40/3 (Clutch pedal switch)- Electrical fault.
201E Component 'B5/1 (Boost pressure sensor)' has a plausibility error
201F M2 (Blower motor)- Short circuit to ground/Open circuit in wiring.
201F The signal from component 'S9/1 (Brake light switch)' is faulty
2020-001 Rail pressure monitoring. The rail pressure is too low
2020-004 Rail pressure monitoring via pressure control valve; The rail pressure is too high
2021-001 Rail pressure monitoring. The rail pressure is too low
2023-001 Rail pressure monitoring. The rail pressure is too high.
2024-001 Check component B2/5b1 (Intake air temperature sensor); The signal voltage is too high
2024-001 The signal from component B101 (Mass air flow sensor) is faulty; The signal voltage is too high
2024-002 The signal from component B101 (Mass air flow sensor) is faulty; The signal voltage is too low
2024-002 Check component B2/5b1 (Intake air temperature sensor); The signal voltage is too low
2026-001 Check component G3/2 (O2 sensor upstream of KAT); Short circuit to positive
2026-001 The signal from component R25 (Oxygen sensor) is faulty; The signal voltage is too high
2026-002 The signal from component R25 (Oxygen sensor) is faulty; The signal voltage is too low
2026-002 Check component G3/2 (O2 sensor upstream of KAT); Short circuit to ground
2026-004 The signal from component R25 (Oxygen sensor) is faulty; Open circuit
2026-004 Check component G3/2 (O2 sensor upstream of KAT); Open circuit
2026-008 The signal from component R25 (Oxygen sensor) is faulty; Cable has open circuit
2028-001 Pump current (G3/2 (O2 sensor upstream of KAT)); of oxygen sensor; Short circuit to positive
2028-001 The signal from component R25 (Oxygen sensor) is faulty; The signal voltage is too high
2028-002 Pump current (G3/2 (O2 sensor upstream of KAT)); of oxygen sensor; Short circuit to ground
2028-002 The signal from component R25 (Oxygen sensor) is faulty; The signal voltage is too low
2028-004 Pump current (G3/2 (O2 sensor upstream of KAT)); of oxygen sensor; Open circuit
2028-004 The signal from component R25 (Oxygen sensor) is faulty; Open circuit
2028-008 The signal from component R25 (Oxygen sensor) is faulty; Cable has open circuit
202A00 The heating of the AdBlue tank module has an electrical fault or an open circuit
202A01 Component Heating of AdBlue pressure line is defective
202A01 The heating of the AdBlue tank module has an electrical fault or an open circuit
202AFA The heater of the AdBlue tank module has an electrical fault or open circuit.
202B11 The heater of the AdBlue tank module has an electrical fault or open circuit
202B16 The heater of the AdBlue tank module has an electrical fault or open circuit
202C Event:CAN message from control module Instrument cluster- CAN signal interruption.
202C Harness injector-Cylinder 2-Resistance damage
202C12 The heater of the AdBlue tank module has an electrical fault or open circuit
202C17 The heater of the AdBlue tank module has an electrical fault or open circuit
202D29 A leak in the AdBlue system was detected
202D29 The AdBlue tank is empty
202E Event:CAN fault- 1.CAN controller: CAN bus OFF.
202E Event:CAN fault- 2.CAN controller: CAN bus OFF.
202E4B AdBlue metering valve. Operational problem
202F Test electrical lines between components 'Y76/1 (Cylinder 1 fuel injector)' and 'N3/9 (CDI control unit)' for open circuit
202F00 Output 'AdBlue supply' has a malfunction
2030-001 Check component G3/2 (O2 sensor upstream of KAT); Short circuit to positive
2030-002 Check component G3/2 (O2 sensor upstream of KAT); Short circuit to ground
2030-004 Check component G3/2 (O2 sensor upstream of KAT); Open circuit
2032-001 Check component G3/2 (O2 sensor upstream of KAT); Voltage is too high
2032-001 A signal from component R25 (Oxygen sensor) is faulty
2032-002 A signal from component R25 (Oxygen sensor) is faulty
2032-002 Check component G3/2 (O2 sensor upstream of KAT); Voltage is too low
2032-004 A signal from component R25 (Oxygen sensor) is faulty
2032-004 Check component G3/2 (O2 sensor upstream of KAT); Voltage is too high
2034-001 Calibration of the oxygen sensor is faulty
2034-002 Calibration of the oxygen sensor is faulty
2034-002 Check component G3/2 (O2 sensor upstream of KAT)CalibrationO2 sensor Calibration: Value TOO LOW
2036-001 Check component G3/2 (O2 sensor upstream of KAT); Calibration: Value TOO HIGH
2036-001 The internal resistance of component R25 (Oxygen sensor) is not OK.
2036-002 Check component G3/2 (O2 sensor upstream of KAT); Calibration: Value TOO LOW
2036-002 The internal resistance of component R25 (Oxygen sensor) is not OK.
2038-001 Check component G3/2 (O2 sensor upstream of KAT); Resistance too large
2038-001 R25 (Oxygen sensor) Measuring range exceeded.
2038-002 Check component G3/2 (O2 sensor upstream of KAT); Resistance too small
2038-002 R25 (Oxygen sensor) Readout below range.
203A N3/29 (ME-SFI [ME] control unit),Fault.
203A00 Fill level sensor 'AdBlue' has an electrical fault
203A13 The AdBlue fill level sensor has an electrical fault
203B N3/10 (ME-SFI [ME] control unit)- EEPROM error of control unit.
203B09 The AdBlue fill level sensor has a malfunction
203B21 The AdBlue fill level sensor has a malfunction
203B22 The AdBlue fill level sensor has a malfunction
203B29 The fuel tank level is implausible
203B64 The AdBlue fill level sensor has a malfunction
203B84 The AdBlue fill level sensor has a malfunction
203B84 The fuel tank level is implausible
203B85 The AdBlue fill level sensor has a malfunction
203B85 The fuel tank level is implausible
203B86 The AdBlue fill level sensor has a malfunction
203C11 The AdBlue fill level sensor has a short circuit to ground
203C16 The AdBlue fill level sensor has a short circuit to ground
203C21 The AdBlue fill level sensor has a short circuit to ground
203C23 The AdBlue fill level sensor has an electrical fault
203C84 The AdBlue fill level sensor has a short circuit to ground
203D Check component 'A16 (Knock sensor)'
203D12 The AdBlue fill level sensor has a short circuit to positive
203D17 The AdBlue fill level sensor has a short circuit to positive
203D22 The AdBlue fill level sensor has a short circuit to positive
203D24 The AdBlue fill level sensor has an electrical fault
203D85 The AdBlue fill level sensor has a short circuit to positive
203E Check component 'Y76/1 (Cylinder 1 fuel injector)'
203F Check component 'Y76/3 (Cylinder 3 fuel injector)'
203F G8/5 (Oxygen sensor upstream of TWC [KAT])- Short circuit to ground.
203F29 The AdBlue fill level is too low
2040-001 Check component B40 (Oil sensor (oil level, temperature and quality)); Oil level is implausible
2040-001 The signal from component B110 (Engine oil sensor) is faulty; The oil level is beyond the measuring range
2040-004 Check component B40 (Oil sensor (oil level, temperature and quality)); Invalid value
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