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 |
---|---|
P0734 |
Gear 4 Incorrect ratio |
P0735 |
Gear 5 Incorrect ratio |
P0736 |
Reverse incorrect gear ratio |
P0740 |
Torque Converter Clutch Circuit Malfuction |
P0741 |
Torque Converter Clutch Circuit Performance or Stuck Off |
P0742 |
Torque Converter Clutch Circuit Stuck On |
P0743 |
Torque Converter Clutch Circuit Electrical |
P0744 |
Torque Converter Clutch Circuit Intermittent |
P0745 |
Pressure Control Solenoid Malfunction |
P0746 |
Pressure Control Solenoid Performance or Stuck Off |
P0747 |
Pressure Control Solenoid Stuck On |
P0748 |
Pressure Control Solenoid Electrical |
P0749 |
Pressure Control Solenoid Intermittent |
P0750 |
Shift Solenoid A Malfunction |
P0751 |
Shift Solenoid A Performance or Stuck Off |
P0752 |
Shift Solenoid A Stuck On |
P0753 |
Shift Solenoid A Electrical |
P0754 |
Shift Solenoid A Intermittent |
P0756 |
Shift Solenoid B Performance or Stuck Off |
P0757 |
Shift Solenoid B Stuck On |
P0758 |
Shift Solenoid B Electrical |
P0759 |
Shift Solenoid B Intermittent |
P0760 |
Shift Solenoid C Malfunction |
P0761 |
Shift Solenoid C Performance or Stuck Off |
P0762 |
Shift Solenoid C Stuck On |
P0763 |
Shift Solenoid C Electrical |
P0764 |
Shift Solenoid C Intermittent |
P0765 |
Shift Solenoid D Malfunction |
P0766 |
Shift Solenoid D Performance or Stuck Off |
P0767 |
Shift Solenoid D Stuck On |