Below is a detailed table of common BMW Diagnostic Trouble Codes (DTCs). BMW vehicles have sophisticated onboard diagnostic systems that monitor performance, emissions, and various subsystems.
| Code | Description |
|---|---|
| P0101 | Mass Airflow (MAF) Circuit Range/Performance |
| P0106 | Manifold Absolute Pressure (MAP) Sensor Circuit Range/Performance |
| P0113 | Intake Air Temperature (IAT) Sensor Circuit High Input |
| P0128 | Coolant Thermostat Temperature Below Regulating Temperature |
| P0171 | System Too Lean (Bank 1) |
| P0172 | System Too Rich (Bank 1) |
| P0300 | Random/Multiple Cylinder Misfire Detected |
| P0301 | Cylinder 1 Misfire Detected |
| P0335 | Crankshaft Position Sensor Circuit Malfunction |
| P0420 | Catalyst System Efficiency Below Threshold (Bank 1) |
| P0442 | Evaporative Emission System Leak Detected (Small Leak) |
| P0455 | Evaporative Emission System Leak Detected (Large Leak) |
| P0500 | Vehicle Speed Sensor Malfunction |
| P0562 | System Voltage Low |
| P0700 | Transmission Control System Malfunction |
| P0720 | Output Speed Sensor Circuit Malfunction |
| P1083 | Fuel Control Mixture Lean (Bank 1 Sensor 1) |
| P1085 | Fuel Control Mixture Lean (Bank 2 Sensor 1) |
| P1345 | Misfire During Start Cylinder 2 |
| P2187 | System Too Lean at Idle (Bank 1) |
| P2263 | Turbocharger/Supercharger Boost System Performance |
| U0100 | Lost Communication With ECM/PCM |
| U0121 | Lost Communication With ABS Module |
| B1001 | Airbag System Fault |
| B1405 | Seatbelt Tensioner Fault |
| C1100 | ABS Pump Motor Fault |
| C1234 | Yaw Rate Sensor Fault |
Key Systems Covered:
- Powertrain DTCs: Engine and transmission issues.
- Emission System DTCs: Issues related to emissions and fuel control.
- Electrical System DTCs: Malfunctions in communication and module functionality.
- Chassis and Safety DTCs: Problems with ABS, airbags, and seatbelt systems.
- Turbocharger DTCs: Specific to BMW’s turbocharged engines.
