Below is a detailed table of Acura DTCs, grouped by system for clarity. Acura vehicles share many diagnostic codes with Honda due to their shared engineering, but some are specific to Acura’s advanced systems and features.
| Code | Description |
|---|---|
| P0001 | Fuel Volume Regulator Control Circuit/Open |
| 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) |
| P0101 | Mass Airflow (MAF) Circuit Range/Performance |
| P0102 | Mass Airflow (MAF) Circuit Low Input |
| P0113 | Intake Air Temperature (IAT) Sensor Circuit High Input |
| P0128 | Coolant Thermostat Temperature Below Thermostat 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 |
| 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 |
| P1259 | Variable Valve Timing Control System Malfunction |
| P1457 | Evaporative Emission Control System Leak Detected (Canister Area) |
| P2101 | Throttle Actuator Control Motor Circuit Range/Performance |
| P2185 | Engine Coolant Temperature Sensor 2 Circuit High |
| U0101 | Lost Communication With Transmission Control Module (TCM) |
| U0121 | Lost Communication With ABS Module |
| B1235 | Rear Audio System Error |
| B1245 | Air Mix Door Position Sensor Malfunction |
| B1312 | Sunroof Control Unit Lost Communication |
| B1359 | Door Multiplex Control Unit Lost Communication |
Systems Covered:
- Powertrain System DTCs: Engine and transmission-related issues.
- Emission and Environmental DTCs: Compliance with emission standards.
- Electrical System DTCs: Communication errors between modules and electrical faults.
- Luxury Features DTCs: Errors specific to Acura’s advanced interior systems, such as audio, sunroof, and climate controls.
