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OBD Codes

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.

Name Description
P0288

Cylinder 10 Injector Circuit Low

P0289

Cylinder 10 Injector Circuit High

P0290

Cylinder 10 Contribution/Balance Fault

P0291

Cylinder 11 Injector Circuit Low

P0292

Cylinder 11 Injector Circuit High

P0293

Cylinder 11 Contribution/Balance Fault

P0294

Cylinder 12 Injector Circuit Low

P0295

Cylinder 12 Injector Circuit High

P0296

Cylinder 12 Contribution/Range Fault

P0300

Random/Multiple Cylinder Misfire Detected

P0301

Cylinder 1 Misfire Detected

P0302

Cylinder 2 Misfire Detected

P0303

Cylinder 3 Misfire Detected

P0304

Cylinder 4 Misfire Detected

P0305

Cylinder 5 Misfire Detected

P0306

Cylinder 6 Misfire Detected

P0307

Cylinder 7 Misfire Detected

P0308

Cylinder 8 Misfire Detected

P0309

Cylinder 9 Misfire Detected

P0310

Cylinder 10 Misfire Detected

P0311

Cylinder 11 Misfire Detected

P0312

Cylinder 12 Misfire Detected

P0320

Ignition/Distributor Engine Speed Input Circuit Malfunction

P0321

Ignition/Distributor Engine Speed Input Circuit Range/Performance

P0322

Ignition/Distributor Engine Speed Input Circuit No Signal

P0323

Ignition/Distributor Engine Speed Input Circuit Intermittent

P0325

Knock Sensor 1 Circuit Malfunction (Bank 1 or Single Sensor)

P0326

Knock Sensor 1 Circuit Range/Performance (Bank 1 or Single Sensor)

P0327

Knock Sensor 1 Circuit Low Input (Bank 1 or Single Sensor)

P0328

Knock Sensor 1 Circuit High Input (Bank 1 or Single Sensor)