Browse our complete database of OBD2 fault codes. Each code page includes plain-English explanations, ranked causes, estimated repair costs, and vehicle-specific diagnostic guides powered by Skanyx AI data.
"A" Camshaft Position Actuator Circuit (Bank 1)
Engine Overspeed Condition
Vehicle Speed Sensor "A" Malfunction
System Voltage Low
Serial Communication Link Malfunction
ECM/PCM Processor Fault
Intake Manifold Runner Control Circuit/Open (Bank 1)
"A" Camshaft Position - Timing Over-Advanced or System Performance (Bank 1)
"B" Camshaft Position - Timing Over-Retarded (Bank 1)
Manifold Absolute Pressure/Barometric Pressure Circuit Range/Performance
Intake Air Temperature Sensor 1 Circuit High
O2 Sensor Circuit Low Voltage (Bank 1 Sensor 1)
O2 Sensor Heater Circuit Malfunction (Bank 1, Sensor 1)
O2 Sensor Heater Circuit Malfunction (Bank 1, Sensor 2)
Exhaust Gas Recirculation Flow Malfunction
Exhaust Gas Recirculation (EGR) Flow Insufficient
Secondary Air Injection System Malfunction
Secondary Air Injection System Incorrect Flow Detected
Catalyst System Efficiency Below Threshold (Bank 1)
Catalyst System Efficiency Below Threshold (Bank 2)
Diesel Particulate Filter Efficiency Below Threshold (Bank 1)
Crankshaft Position - Camshaft Position Correlation (Bank 1 Sensor A)
Crankshaft Position Sensor "A" Circuit Malfunction
Camshaft Position Sensor Circuit Malfunction
Camshaft Position Sensor "A" Circuit Range/Performance
Fuel Rail/System Pressure - Too Low
Mass Air Flow Sensor Range/Performance
Fuel Trim Malfunction (Bank 1)
System Too Lean (Bank 1)
System Too Rich (Bank 1)
System Too Lean (Bank 2)
Fuel Rail Pressure Sensor Circuit Range/Performance
Turbocharger/Supercharger "A" Overboost Condition
Turbocharger/Supercharger "A" Underboost Condition
Idle Control System RPM Higher Than Expected
Intake Manifold Runner Control Stuck Open (Bank 1)
Intake Manifold Runner Control Stuck Closed (Bank 1)
Intake Manifold Runner Position Sensor/Switch Circuit Range/Performance (Bank 1)
System Too Lean at Idle (Bank 1)
System Too Rich at Idle (Bank 1)
Random/Multiple Cylinder Misfire Detected
Cylinder 1 Misfire Detected
Cylinder 2 Misfire Detected
Cylinder 3 Misfire Detected
Cylinder 4 Misfire Detected
Transmission Control System Malfunction
Input/Turbine Speed Sensor Circuit Malfunction
Output Speed Sensor Circuit Malfunction
Torque Converter Clutch Circuit Performance/Stuck Off
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