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.
Réparer le code défaut de votre auto, c’est potentiellement simple à faire avec nos revues et méthodes techniques
| Code | Libellé |
|---|---|
| P1761 | Component B19/19 (Temperature sensor upstream of diesel particulate filter) has a short circuit to ground |
| P176D | The value of component B2/7b1 (Right intake air temperature sensor) is implausible |
| P176E | Component B2/7b1 (Right intake air temperature sensor) has a short circuit to positive |
| P176F | Component 'B2/7b1 (Right intake air temperature sensor)' has a short circuit to ground |
| P1777 | CAN communication with component 'A97/2 (NOx sensor control unit downstream of SCR catalytic converter)' has a malfunction. |
| P1778 | CAN communication with component 'A97/1 (NOx sensor control unit upstream of SCR catalytic converter)' has a malfunction. |
| P1781 | Event:No CAN message was received from control unit N118/5 (AdBlue control unit). |
| P1783 | Efficiency of SCR catalytic converter in temperature range 1a. |
| P1784 | Efficiency of SCR catalytic converter in temperature range 1b. |
| P1785 | Efficiency of SCR catalytic converter in temperature range 2. |
| P1787 | The upper limit value of component NOx sensor upstream of SCR catalytic converter has been exceeded |
| P1788 | The lower limit value of component NOx sensor upstream of SCR catalytic converter has been reached. |
| P1789 | The value of component NOx sensor upstream of SCR catalytic converter does not change |
| P178A | The upper limit value of component NOx sensor downstream of SCR catalytic converter has been exceeded |
| P178B | Excessive nitrogen oxide emission due to low quality AdBlue. |
| P178C | Excessive nitrogen oxide emission due to low quality AdBlue. |
| P178D | Excessive nitrogen oxide emission due to low quality AdBlue. |
| P178E | Excessive nitrogen oxide emission due to low quality AdBlue. |
| P178F | The AdBlue quality is insufficient. |
| P1790 | Consequential fault:The emission limit for the NOx concentration has been exceeded (AdBlue quality is too low) |
| P1790 | DFC SCRC RQ stNOxEvalErr: Error entry: SCR system: AdBlue quality monitoring after refuelling due to NOx sensor error not possible. |
| P17A5 | Deviation between measured and calculated NOx concentration (upper plausibility limit). |
| P17B9 | Deviation between measured and calculated NOx concentration (lower plausibility limit). |
| P17E6 | The fill level of the AdBlue tank is too high. |
| P17E7 | The negative control deviation of exhaust gas recirculation control is too high. |
| P17E8 | The upper limit value of component B19/9 (Temperature sensor upstream of diesel particulate filter) has been exceeded |
| P17E9 | The positive control deviation of exhaust gas recirculation control is too high. |
| P17EA | The positive control deviation during boost pressure control is too high. |
| P17EB | The negative control deviation during boost pressure control is too high. |
| P17EC | The remaining time for enabling of the AdBlue metering amount has elapsed |
| P17F0 | The crash signal has been detected. |
| P1809 | Component 'R48 (Coolant thermostat heating element)' has an electrical fault or an open circuit |
| P1811 | No CAN message from control unit B163 (Soot particulate sensor) |
| P1812 | Event:One or more signals sent from control unit N15/3 (ETC [EGS] control unit) via the CAN bus is implausible |
| P1813 | Event:One or more signals sent from control unit N15/3 (ETC [EGS] control unit) via the CAN bus is implausible |
| P1817 | Reversing light switch circuit/open |
| P1819 | Inlet manifold switch-over valve malfunction |
| P1821 | The signal of component B96/1 (Left intake port shutoff end position sensor) is implausible in comparison to the signal of component B96/2 (Right intake port shutoff end position sensor) |
| P1822 | Component B96/2 (Right intake port shutoff end position sensor) has an electrical fault. |
| P1823 | Component B96/2 (Right intake port shutoff end position sensor) has an electrical fault. |
| P1824 | Component B96/1 (Left intake port shutoff end position sensor) has an electrical fault. |
| P1825 | Component B96/1 (Left intake port shutoff end position sensor) has an electrical fault. |
| P1826 | Component M55 (Inlet port shutoff motor) has undertemperature. |
| P1827 | The output signal of component M55 (Inlet port shutoff motor) is implausible. |
| P1828 | The output signal of component M55 (Inlet port shutoff motor) is implausible. |
| P1829 | Component 'M55 (Inlet port shutoff motor)' has an internal fault. |
| P182A | Component 'M55 (Inlet port shutoff motor)' has an internal fault. |
| P182B | Component M55 (Inlet port shutoff motor) or line to component has short circuit or open circuit. |
| P1832 | Gear selector control unit, short circuit |
| P1835 | The rail pressure cannot be built up |
| P1836 | Component M55 (Inlet port shutoff motor) has a short circuit to ground. |
| P1839 | The regeneration duration of the diesel or gasoline particulate filter is not OK |
| P183A | Component M55 (Inlet port shutoff motor) is mechanically damaged or it sticks. |
| P183B | Component M55 (Inlet port shutoff motor) is mechanically damaged or it sticks. |
| P183D | Component Y27/9 (Left EGR positioner) is mechanically damaged or it sticks. |
| P183E | Component Y27/9 (Left EGR positioner) is mechanically damaged or it sticks. |
| P1847 | The positive control deviation during rail pressure regulation during cold starting is too high. |
| P1848 | The negative control deviation during rail pressure regulation during cold starting is too high. |
| P1849 | The control deviation during rail pressure regulation via the quantity control valve is too high. |
| P184A | The control deviation during rail pressure regulation via the quantity control valve is too high. |
| P184B | The control deviation during rail pressure regulation via the quantity control valve is too high. |
| P184C | The control deviation during rail pressure regulation via the quantity control valve is too high. |
| P184D | The control deviation during rail pressure regulation is too high. |
| P184E | The negative control deviation during rail pressure regulation during cold starting is too high. |
| P184F | The control deviation during rail pressure regulation via the pressure regulator valve is too high. |
| P1850 | RailPCVPosDvt: The fuel pressure in the system is too low. |
| P1851 | The control deviation during rail pressure regulation is too low. |
| P1852 | The positive control deviation during rail pressure regulation during cold starting is too high. |
| P1856 | Gear lever position sensor system, multiple sensor correlation fault |
| P1856 | The charge pressure control is faulty. |
| P1857 | MAP sensor correlation with mass airflow meter |
| P1863 | The correction value of the fuel consumption is too high. |
| P1864 | The correction value of the fuel consumption is too low. |
| P1865 | Component N74 (Soot particulate sensor control unit) is not connected or has a line discontinuity. |
| P1866 | The heater of component 'N74 (Soot particulate sensor control unit)' has a malfunction. |
| P1867 | The heater of component 'N74 (Soot particulate sensor control unit)' has a malfunction. |
| P1868 | The power consumption of component 'N74 (Soot particulate sensor control unit)' is too high. |
| P1869 | Component N74 (Soot particulate sensor control unit) is not connected or has a line discontinuity. |
| P186A | Event: AdBlueWarning message 'X':The engine cannot be started because the exhaust aftertreatment system has been tampered with |
| P186B | The AdBlue fill level is low. |
| P186C | The AdBlue fill level is low. |
| P186D | The AdBlue fill level is low. |
| P186E | The AdBlue fill level is too low. |
| P186F | Component Y133 (Coolant pump switchover valve) has a malfunction. |
| P1870 | Component Y133 (Coolant pump switchover valve) has a malfunction. |
| P1872 | The permissible limit value for the air mass was exceeded. |
| P1873 | The permissible limit value for the air mass was dropped below. |
| P1874 | The boost pressure is too high during a cold start. |
| P1875 | Event:CAN communication is faulty. |
| P1875 | The boost pressure is too low during a cold start. |
| P1876 | No or incorrect CAN message from control unit ABS. |
| P187A | The boost pressure is too high during a cold start. |
| P187B | The boost pressure is too high during a cold start in partial load operation. |
| P187C | The boost pressure is too low during a cold start. |
| P187D | The boost pressure is too low during a cold start in partial load operation. |
| P187E | The NOx concentration upstream of the SCR catalytic converter is too high. |
| P187F | The NOx concentration downstream of the SCR catalytic converter is too high. |
| P1880 | Component Y27/9 (Left EGR positioner) has a malfunction. |
| P1881 | Component Y27/9 (Left EGR positioner) has a malfunction. |
| P1882 | Component 'Y27/17 (Exhaust gas recirculation positioner)' has a malfunction. |
DEFINISSEZ VOTRE MARQUE POUR ACCEDER A VOS CODES DEFAUTS
LES PRODUITS DISPONIBLES POUR VOTRE AUTO
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Revue technique RTA
Revue Technique Automobile
La revue technique de référence depuis 1946. La RTA est une revue papier pour tous publics, qui vous permet d'effectuer les petites et les grosses réparations
Voir le descriptif
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Entretien courant MTA
Méthode Technique Automobile
La MTA est issue de nos outils destinés aux pros de l'auto. Ces méthodes en ligne permettent d'effectuer les opérations de maintenances de votre auto (filtres, courroies, etc.)
Voir le descriptif
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Toutes réparations MTAx
Méthode Technique Automobile Expert
La MTA expert est un outil en ligne destiné aux experts en mécanique et en carrosserie, pour effectuer tous types de réparations sur une voiture.
Voir le descriptif