Diagnostic Trouble Code Index for March 2023
Note: This is a professional automotive technician's resource.
Vehicle Owners: If you are seeking an automotive repair professional to service your vehicle, visit the iATN Repair Shop Finder.Diagnostic Trouble Codes (DTC)
| Count | Trouble Code | Sample Definition | Manufacturers |
| 4 | P0300 | Multiple Cylinder Misfire Detected | Chevrolet, Mercedes-Benz, Pontiac |
| 3 | P0172 | Fuel System Rich (Bank 1) | Ford, Honda |
| 2 | P0304 | Cylinder 4 Misfire Detected | Honda, Mercedes-Benz |
| 2 | P0491 | Secondary AIR System Insufficient Flow Detected (Bank 1) | Volkswagen |
| 2 | P2196 | Heated Oxygen Sensor (Bank 1 Sensor 1) Stuck Rich | BMW, Ford |
| 1 | C0561 | System Disabled Information Stored | Buick |
| 1 | C1A00 | Control module can bus off. VDM | Land Rover |
| 1 | P0001 | Fuel Quality Control Circuit / Open | Ford |
| 1 | P0014 | Exhaust Camshaft Position System Performance | Buick |
| 1 | P0017 | Crankshaft Position - Exhaust Camshaft Position Correlation | Buick |
| 1 | P0030 | Heated Oxygen Sensor (Bank 1 Sensor 1) Heater Control Circuit Malfunction | Ford |
| 1 | P0068 | Throttle Body Airflow Performance | Porsche |
| 1 | P0073 | Ambient Air Temperature Sensor Circuit High Voltage | Chevrolet |
| 1 | P0087 | Fuel Rail Pressure Too Low | Ford |
| 1 | P0088 | Fuel Rail Pressure Too High | Ford |
| 1 | P0090 | Fuel Pressure Regulator 1 Control Circuit Malfunction | Chevrolet |
| 1 | P0114 | Intake Air Temperature Sensor Circuit Erratic | Hyundai |
| 1 | P0123 | TP Sensor Circuit High Voltage | Nissan |
| 1 | P0135 | Heated Oxygen Sensor (Bank 1 Sensor 1) Heater Circuit Malfunction | Ford |
| 1 | P0156 | Heated Oxygen Sensor (Bank 2 Sensor 2) Circuit Malfunction | Mercury |
| 1 | P0158 | Heated Oxygen Sensor (Bank 2 Sensor 2) Circuit High Voltage | Mercury |
| 1 | P0161 | Heated Oxygen Sensor (Bank 2 Sensor 2) Heater Circuit Malfunction | Mercury |
| 1 | P0175 | Fuel System Rich (Bank 2) | Ford |
| 1 | P0222 | Throttle Position Sensor 2 Circuit Low Voltage | Nissan |
| 1 | P0303 | Cylinder 3 Misfire Detected | Pontiac |
| 1 | P0341 | CMP Sensor Performance | Buick |
| 1 | P0391 | Exhaust Camshaft Position Sensor Performance (Bank 2) | Buick |
| 1 | P0403 | EGR Solenoid Control Circuit Malfunction | Dodge |
| 1 | P0406 | EGR Position Sensor Circuit High Voltage | Dodge |
| 1 | P0420 | Catalyst Efficiency Below Normal (Bank 1) | Ford |
| 1 | P0430 | Catalyst System Low Efficiency (Bank 2) | Jeep |
| 1 | P0457 | Loose Fuel Cap | Jeep |
| 1 | P0463 | Fuel Level Sensor High Voltage | Ford |
| 1 | P0496 | EVAP Canister Purge System High Purge Flow | Buick |
| 1 | P0500 | Vehicle Speed Sensor Circuit Malfunction | Subaru |
| 1 | P0507 | Idle Speed High | Subaru |
| 1 | P050E | Cold Start Engine Exhaust Temperature Out-Of-Range | Jeep |
| 1 | P0872 | Transmission Fluid Pressure Switch 3 Circuit Low Voltage | Land Rover |
| 1 | P1131 | Heated Oxygen Sensor (Bank 1 Sensor 1) Indicates A/F Ratio Too Lean | Mercury |
| 1 | P1151 | Heated Oxygen Sensor (Bank 2 Sensor 1) Indicates A/F Ratio Too Lean | Mercury |
| 1 | P1270 | Engine RPM / Vehicle Speed Limit Reached | Mercury |
| 1 | P1326 | ION Sensing Module Combustion Quality | Volkswagen |
| 1 | P1400 | Cold Start Emission Reduction Control System | Chevrolet |
| 1 | P1540 | Air Conditioning Refrigerant Over-Pressure - Air Conditioning Disabled | Subaru |
| 1 | P1592 | Neutral Position Switch Circuit Malfunction | Porsche |
| 1 | P1705 | Throttle Position Sensor Circuit Malfunction | Infiniti |
| 1 | P1710 | Turbine Revolution Sensor Circuit Malfunction | Ford |
| 1 | P2096 | Downstream Fuel System Lean - HO2S-12 (Bank 1 Sensor 2) | BMW |
| 1 | P2128 | Accelerator Pedal Position Sensor 2 Circuit High Voltage | Infiniti |
| 1 | P2138 | Accelerator Pedal Position Sensor 1-2 Correlation Error | Infiniti |
| 1 | P2172 | High Airflow / Vacuum Leak Detected (Instantaneous Accumulation) | Jeep |
| 1 | P2198 | Air Fuel Ratio Sensor (Bank 2 Sensor 1) Signal Stuck "Rich" | BMW |
| 1 | P2271 | Heated Oxygen Sensor (Bank 1 Sensor 2) Signal Stuck Rich | Ford |
| 1 | P242B | Exhaust Gas Temperature Sensor Performance (Bank 1 Sensor 3) | Porsche |
| 1 | P2433 | Secondary Air Injection System Pressure Sensor Circuit High Voltage | Toyota |
| 1 | P2456 | particulate filter sensor | Nissan |
| 1 | P2A03 | Air Fuel Sensor (Bank 2 Sensor 1) Circuit Range / Performance | Nissan |
| 1 | P3010 | Battery Total Resistance Malfunction | Ford |
| 1 | P3020 | Battery Block 10 Becomes Weak | Ford |
| 1 | P3030 | Battery Voltage Defected Line Snapped | Ford |
| 1 | P3400 | Cylinder Deactivation System Performance | Chevrolet |
| 1 | P3401 | Cylinder 1 Deactivation Solenoid Control Circuit Malfunction | Chevrolet |
| 1 | P3417 | Cyl. 3 Deactivation sol. control circuit | Chevrolet |
| 1 | P3433 | Cyl. 5 Deactivation sol. control circuit | Chevrolet |
| 1 | P3650 | Cam position b circuit bank 1 | Ford |
| 1 | P3690 | Cam position b circuit intermittant bank 1 | Ford |
| 1 | U0100 | Lost Communication With ECM/PCM | Chevrolet |
| 1 | U0101 | Lost Communication With TCM | Chevrolet |
| 1 | U1288 | VDM lost comm with park brake. | Land Rover |
| 1 | U4168 | Invalid data received vehicle dynamics control module | Land Rover |
