Should the engine mangement light come on, you can read most issues through the OBD port using a suitable code reader. More information can be found on the relevant pages for your particular smart: fortwo 450, fortwo 451 and Roadster. Should your code reader simply give you a fault code, please use this system to look up the description, possible cause and resolution where available.
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OBD Codes
| Name | Description | |
|---|---|---|
| P0227 |
Throttle/Petal Position Sensor/Switch C Circuit Low Input |
|
| P0228 |
Throttle/Petal Position Sensor/Switch C Circuit High Input |
|
| P0229 |
Throttle/Petal Position Sensor/Switch C Circuit Intermittent |
|
| P0230 |
Fuel Pump Primary Circuit Malfunction |
|
| P0231 |
Fuel Pump Secondary Circuit Low |
|
| P0232 |
Fuel Pump Secondary Circuit High |
|
| P0233 |
Fuel Pump Secondary Circuit Intermittent |
|
| P0234 |
Engine Overboost Condition |
|
| P0235 |
Turbocharger Boost Sensor A Circuit Malfunction |
|
| P0236 |
Turbocharger Boost Sensor A Circuit Range/Performance |
|
| P0237 |
Turbocharger Boost Sensor A Circuit Low |
|
| P0238 |
Turbocharger Boost Sensor A Circuit High |
|
| P0239 |
Turbocharger Boost Sensor B Malfunction |
|
| P0240 |
Turbocharger Boost Sensor B Circuit Range/Performance |
|
| P0241 |
Turbocharger Boost Sensor B Circuit Low |
|
| P0242 |
Turbocharger Boost Sensor B Circuit High |
|
| P0243 |
Turbocharger Wastegate Solenoid A Malfunction |
|
| P0244 |
Turbocharger Wastegate Solenoid A Range/Performance |
|
| P0245 |
Turbocharger Wastegate Solenoid A Low |
|
| P0246 |
Turbocharger Wastegate Solenoid A High |
|
| P0247 |
Turbocharger Wastegate Solenoid B Malfunction |
|
| P0248 |
Turbocharger Wastegate Solenoid B Range/Performance |
|
| P0249 |
Turbocharger Wastegate Solenoid B Low |
|
| P0250 |
Turbocharger Wastegate Solenoid B High |
|
| P0251 |
Injection Pump Fuel Metering Control "A" Malfunction (Cam/Rotor/Injector) |
|
| P0252 |
Injection Pump Fuel Metering Control "A" Range/Performance (Cam/Rotor/Injector) |
|
| P0253 |
Injection Pump Fuel Metering Control "A" Low (Cam/Rotor/Injector) |
|
| P0254 |
Injection Pump Fuel Metering Control "A" High (Cam/Rotor/Injector) |
|
| P0256 |
Injection Pump Fuel Metering Control "B" Malfunction (Cam/Rotor/Injector) |
|
| P0257 |
Injection Pump Fuel Metering Control "B" Range/Performance (Cam/Rotor/Injector) |
