OBD-II Code Library
Browse 50+ standardized OBD-II fault codes organized by system. Click any code to run a full algorithmic P-Code analysis for your vehicle.
60 codes found
Crankshaft/Camshaft Position Sensor Correlation
HO2S Heater Control Circuit (Bank 1, Sensor 1)
Mass Air Flow (MAF) Sensor Performance
Mass Air Flow Sensor Circuit Low Input
Intake Air Temperature Sensor 1 Circuit High
Engine Coolant Temperature Sensor Circuit Low
Coolant Thermostat Below Regulating Temperature
O2 Sensor Circuit (Bank 1, Sensor 1)
System Too Lean (Bank 1)
System Too Rich (Bank 1)
System Too Lean (Bank 2)
System Too Rich (Bank 2)
Random/Multiple Cylinder Misfire Detected
Cylinder 1 Misfire Detected
Cylinder 2 Misfire Detected
Cylinder 3 Misfire Detected
Cylinder 4 Misfire Detected
Cylinder 5 Misfire Detected
Cylinder 6 Misfire Detected
Knock Sensor 1 Circuit (Bank 1)
Camshaft Position Sensor "A" Circuit (Bank 1)
EGR (Exhaust Gas Recirculation) Flow Insufficient
Catalyst System Efficiency Below Threshold (Bank 1)
Catalyst System Efficiency Below Threshold (Bank 2)
Evaporative Emission System Malfunction
Evaporative Emission System Incorrect Purge Flow
Evaporative Emission System Leak Detected (Small)
Evaporative Emission System Leak Detected (Large)
Vehicle Speed Sensor "A" Malfunction
Idle Control System Malfunction
Idle Control System RPM High
System Voltage Low
PCM/ECM/ECU Internal Communication Error
Transmission Control System (MIL Request)
Output Speed Sensor Circuit Malfunction
Torque Converter Clutch Circuit Malfunction
Right Front Wheel Speed Sensor Circuit
Left Front Wheel Speed Sensor Circuit
Right Rear Wheel Speed Sensor Circuit
Left Rear Wheel Speed Sensor Circuit
ABS Motor Circuit Malfunction
ABS Pressure Circuit Failure
Right Front Wheel Speed Sensor Circuit Failure
ABS Actuator Relay Circuit Open
Frontal Crash Deployment Loop (Stage 1) Open
Frontal Crash Deployment Loop (Stage 2) Open
Right Frontal Crash Sensor 1 Circuit Failure
Left Frontal Crash Sensor 1 Circuit Failure
ECU Hardware Malfunction
Battery Voltage Low
ECU Defective or EEPROM Memory Error
PATS Ignition Key Transponder Signal Failure
High Speed CAN Communication Bus Open
Lost Communication With ECM/PCM "A"
Lost Communication With TCM
Lost Communication With ABS Control Module
Lost Communication With Body Control Module
Lost Communication With Instrument Panel Cluster
Lost Communication With Parking Assist Control Module
Lost Communication With Radio