Que signifie votre code Code Défaut BMW ?

Grace au système OBD, les Bmw 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 BMW



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

Code Libellé
2A4C00 Coolant pump for charge air cooler, diagnosis feedback: Dry-running detected
2A4D00 Auxiliary water pump, diagnosis feedback: Limp mode function status
2A4E00 Coolant pump for charge air cooler, diagnosis feedback: Permissible electronics temperature exceeded
2A4F00 Coolant pump for charge air cooler, diagnosis feedback: Permissible power consumption exceeded
2A5000 Coolant pump for charge air cooler, diagnosis feedback: Status, supply voltage
2A5100 Auxiliary water pump, diagnosis feedback: Run-on phase status
2A5200 Auxiliary water pump, diagnosis feedback: Speed monitoring error
2A5300 Coolant pump for charge air cooler, diagnosis feedback: Pump module temperature error
2A5400 Auxiliary water pump, diagnosis feedback: Supply voltage error
2A5500 LIN bus, communication: No messages received from the coolant pump charge air cooler
2A5600 Oxygen sensor emissions control: Maximum setpoint value cannot be adjusted
2A5800 Oxygen sensor emissions control: Response time implausible
2A59 Valvetronic Eccentric Shaft Sensor 1
2A5900 Coolant temperature sensor after low-pressure charge air cooler, range: Upper physical limit exceeded
2A5A00 Coolant temperature sensor after low-pressure charge air cooler, range: Lower physical limit undershot
2A5B Valvetronic Eccentric Shaft Sensor 1
2A5B00 Coolant temperature sensor after low-pressure charge air cooler, plausibility: Temperature permanently too high
2A5C00 Coolant circuit switch-over valve for low-pressure boost air cooler, control: Circuit/open
2A5D Valvetronic Eccentric Shaft Sensor 1
2A5D00 Coolant circuit switch-over valve for low-pressure boost air cooler, control: Power stage overtemperature
2A5E00 Coolant circuit switch-over valve for low-pressure boost air cooler, control: Short circuit to plus
2A5F Valvetronic Eccentric Shaft Sensor 1
2A5F00 Coolant circuit switch-over valve for low-pressure boost air cooler, control: Short circuit to ground
2A6000 Supply voltage mass airflow meter: Voltage out of permissible range
2A61 Valvetronic actuator adaptation
2A6100 Coolant temperature sensor after low-pressure charge air cooler, signal: Open or short circuit to B+
2A6200 Coolant temperature sensor after low-pressure charge air cooler, signal: Short circuit to ground
2A63 Valvetronic Servomotor 1
2A6300 Coolant temperature sensor after low-pressure charge air cooler, signal: CAN value not plausible
2A6400 Hot film air mass meter, drift compensation (Hitachi): Signal deviation too high
2A6500 Hot film air mass meter, drift compensation (Bosch): Signal deviation too high
2A6600 Preheating control unit, production mode active: Preheating deactivated
2A67 Valvetronic Internal Fault
2A6700 Reduction agent (AdBlue) pump system: Delivery rate implausible high
2A69 Valvetronic Voltage Supply Servomotor 1
2A6B Valvetronic Power Limitation Servomotor
2A6C Valvetronic Adaptation
2A6D Valvetronic Electrical Overload Protection 1
2A6E00 Reduction agent (AdBlue) heating pressure line, control: Circuit open heating circuit
2A6F Valvetronic Minimum Lift Exceeded
2A6F00 Reduction agent (AdBlue) heating pressure line, control: Short circuit heating circuit
2A70 Valvetronic actuator power consumption
2A7000 Reduction agent (AdBlue) conveyor module heater, control: Circuit open heating circuit
2A71 Valvetronic Relief Relay
2A7100 Reduction agent (AdBlue) conveyor module heater, control: Short circuit heating circuit
2A7200 Nitrogen oxide sensor before SCR catalytic converter, signal: Air/fuel ratio implausible
2A7300 Nitrogen oxide sensor downstream of SCR catalytic converter, signal: Air/fuel ratio implausible
2A74 Nitrogen oxide sensor before SCR catalytic converter, signal: Oxygen content too high at full load
2A7400 Nitrogen oxide sensor before SCR catalytic converter, signal: Oxygen content too high at full load
2A7500 Nitrogen oxide sensor after SCR catalytic converter, signal: Oxygen content too high at full load
2A7600 NOx sensor before DeNOx catalytic converter, plausibility, lambda: Oxygen concentration implausibly high (in overrun mode)
2A7700 NOx sensor after DeNOx catalytic converter, lambda plausibility: Oxygen concentration implausible high (in overrun)
2A7800 NOx sensor before DeNOx catalytic converter, plausibility, lambda: Oxygen concentration implausibly high (at partial load)
2A7900 NOx sensor after DeNOx catalytic converter, lambda plausibility: Oxygen concentration implausible high (at partial load)
2A7A00 Nitrogen oxide sensor before SCR catalytic converter, signal: Oxygen concentration too low at full load
2A7B00 Nitrogen oxide sensor after SCR catalytic converter, signal: Oxygen concentration too low at full load
2A7C00 NOx sensor before DeNOx catalytic converter, plausibility, lambda: Oxygen concentration implausibly low (in overrun mode)
2A7D NOx sensor after DeNOx catalytic converter, lambda plausibility: Oxygen concentration implausible low (in overrun)
2A7D00 NOx sensor after DeNOx catalytic converter, lambda plausibility: Oxygen concentration implausible low (in overrun)
2A7E00 NOx sensor before DeNOx catalytic converter, plausibility, lambda: Oxygen concentration implausibly low (at partial load)
2A7F00 NOx sensor after DeNOx catalytic converter, lambda plausibility: Oxygen concentration implausible low (at partial load)
2A80 Inlet VANOS Activation 1
2A8000 NOx sensor before DeNOx catalytic converter, plausibility: Drift monitoring sensor self-diagnostics (in overrun)
2A8100 NOx sensor after DeNOx catalytic converter, plausibility: Drift monitoring sensor self-diagnostics (in overrun)
2A82 Inlet valve timing control
2A83 Inlet VANOS 1
2A83 Inlet camshaft position system
2A8300 Exhaust-gas recirculation control, response characteristics: Air mass decrease too slow
2A8400 Exhaust-gas recirculation control, response characteristics: Air mass increase too slow
2A85 Exhaust VANOS Activation 1
2A8500 Exhaust-gas recirculation control, response characteristics: Air mass increase too slow
2A8600 Exhaust-gas recirculation control, response characteristics: Air mass decrease too slow
2A88 Exhaust VANOS 1
2A88 Inlet camshaft position system
2A8B00 DDE: Internal fault
2A8D00 Injectors, zero delivery: Fuel injector opens too early
2A9200 Rail pressure plausibility volume-controlled: Control variable from fuel quantity control valve at idle speed not plausible
2A98 Crankshaft position correlation with inlet camshaft position (bank 1)
2A99 Crankshaft-exhaust camshaft, correlation: Value outside reference range
2A9B00 Switchable piston cooling, control: Circuit/open
2A9C00 Selective piston cooling, control activation: Output stage, excess temperature
2A9D00 Selective piston cooling, control activation: Short circuit to B+
2A9E Inlet camshaft position sensor 1 circuit range/performance
2A9E00 Selective piston cooling, control activation: Short circuit to ground
2A9F00 Thermal oil level sensor, plausibility: Oil level
2AA000 Thermal oil level sensor, signal: No signal
2AA100 Thermal oil level sensor, signal: Implausible signal
2AA200 Thermal oil level sensor, plausibility: Oil temperature
2AAA00 LIN, message; intelligent battery sensor (IBS): Missing
2AAA00 Message (ERR_ST_IBS_LIN, 0xB, LIN): Signal(s) in message not valid
2AAB00 Message (VL_IBS_LIN, 0x9, LIN): Signal(s) in message not valid
2AAF00 LIN, message; radiator shutter: invalid
2AB000 Message (MB_LIN_ID_STATE, 0x2E, LIN): Message from starter motor-alternator in belt SGR failed
2AB200 Ambient pressure sensor (installed in control unit), plausibility: Ambient pressure too high (not plausible in relation to pressure before turbine and charging pressure)
2AB300 Ambient pressure sensor (installed in control unit), plausibility: ambient pressure too low (not plausible in relation to pressure upstream from turbine and charging pressure)
2AB400 Charging pressure sensor, plausibility: Charging pressure too high (not plausible in relation to pressure before turbine and ambient pressure)
2AB500 Charging pressure sensor, plausibility: Charging pressure too low (not plausible in relation to pressure upstream from turbine and ambient pressure)
2AB600 Exhaust backpressure sensor before turbocharger, plausibility: Pressure upstream from turbine too high (not plausible in relation to charging pressure and ambient pressure)
2AB700 Exhaust backpressure sensor before turbocharger, plausibility: Pressure before turbine too low (not plausible in relation to charging pressure and ambient pressure)
2AB800 Pressure sensors, plausibility: Pressure upstream from turbocharger, charging pressure and ambient pressure not plausible in relation to each other
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