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 | |
|---|---|---|
| P0570 |
Cruise Control Accel Signal Malfunction |
|
| P0571 |
Cruise Control/Brake Switch A Circuit Malfunction |
|
| P0572 |
Cruise Control/Brake Switch A Circuit Low |
|
| P0573 |
Cruise Control/Brake Switch A Circuit High |
|
| P0574 |
Cruise Control Related Malfunction |
|
| P0575 |
Cruise Control Related Malfunction |
|
| P0576 |
Cruise Control Related Malfunction |
|
| P0577 |
Cruise Control Related Malfunction |
|
| P0578 |
Cruise Control Related Malfunction |
|
| P0579 |
Cruise Control Related Malfunction |
|
| P0580 |
Cruise Control Related Malfunction |
|
| P0600 |
Serial Communication Link Malfunction |
|
| P0601 |
Internal Control Module Memory Check Sum Error |
|
| P0602 |
Control Module Programming Error |
|
| P0603 |
Internal Control Module Keep Alive Memory (KAM) Error |
|
| P0604 |
Internal Control Module Random Access Memory (RAM) Error |
|
| P0605 |
Internal Control Module Read Only Memory (ROM) Error |
|
| P0606 |
PCM Processor Fault |
|
| P0608 |
Control Module VSS Output "A" Malfunction |
|
| P0609 |
Control Module VSS Output "B" Malfunction |
|
| P0620 |
Generator Control Circuit Malfunction |
|
| P0621 |
Generator Lamp "L" Control Circuit Malfunction |
|
| P0622 |
Generator Field "F" Control Circuit Malfunction |
|
| P0650 |
Malfunction Indicator Lamp (MIL) Control Circuit Malfunction |
|
| P0654 |
Engine RPM Output Circuit Malfunction |
|
| P0655 |
Engine Hot Lamp Output Control Circuit Malfunction |
|
| P0656 |
Fuel Level Output Circuit Malfunction |
|
| P0700 |
Transmission Control System Malfunction |
|
| P0701 |
Transmission Control System Range/Performance |
|
| P0702 |
Transmission Control System Electrical |
