Here’s a comprehensive table of Mazda Diagnostic Trouble Codes (DTCs). These codes help identify issues in various systems of Mazda vehicles, making diagnostics easier for technicians and vehicle owners.
Mazda Diagnostic Trouble Codes (DTCs)
| Code | Description |
|---|---|
| P0001 | Fuel Volume Regulator Control Circuit/Open |
| P0002 | Fuel Volume Regulator Control Circuit Range/Performance |
| P0010 | Camshaft Position Actuator Circuit/Open (Bank 1) |
| P0011 | Camshaft Position Timing Over-Advanced or System Performance (Bank 1) |
| P0030 | Heated Oxygen Sensor (HO2S) Heater Control Circuit (Bank 1, Sensor 1) |
| P0031 | Heated Oxygen Sensor (HO2S) Heater Control Circuit Low (Bank 1, Sensor 1) |
| P0101 | Mass Airflow (MAF) Circuit Range/Performance |
| P0102 | Mass Airflow (MAF) Circuit Low Input |
| P0110 | Intake Air Temperature (IAT) Sensor Circuit Malfunction |
| P0113 | Intake Air Temperature (IAT) Sensor Circuit High Input |
| P0128 | Coolant Thermostat (Coolant Temperature Below Thermostat Regulating Temperature) |
| P0171 | System Too Lean (Bank 1) |
| P0172 | System Too Rich (Bank 1) |
| P0201 | Injector Circuit/Open – Cylinder 1 |
| P0300 | Random/Multiple Cylinder Misfire Detected |
| P0301 | Cylinder 1 Misfire Detected |
| P0302 | Cylinder 2 Misfire Detected |
| P0340 | Camshaft Position Sensor Circuit Malfunction |
| P0420 | Catalyst System Efficiency Below Threshold (Bank 1) |
| P0455 | Evaporative Emission System Leak Detected (Large Leak) |
| P0500 | Vehicle Speed Sensor Malfunction |
| P0562 | System Voltage Low |
| P0700 | Transmission Control System Malfunction |
| P0740 | Torque Converter Clutch Circuit/Open |
| P1250 | Pressure Regulator Control Solenoid Malfunction |
| P2101 | Throttle Actuator Control Motor Circuit Range/Performance |
| P2112 | Throttle Actuator Control System – Stuck Closed |
| P2187 | System Too Lean at Idle (Bank 1) |
| P2195 | O2 Sensor Signal Biased/Stuck Lean (Bank 1, Sensor 1) |
| B1318 | Battery Voltage Low |
| B1342 | ECU Defective |
| U0101 | Lost Communication With Transmission Control Module (TCM) |
| U0121 | Lost Communication With Anti-Lock Brake System (ABS) Module |
| U1000 | Generic Communication Error |
This list covers many of the most common Mazda DTCs. If you have a specific code not listed here or need further explanations for a particular issue, let me know!
