OBD-II Diagnostic Codes
742 codes with real owner data · Find meanings, costs, and fixes
Understanding OBD-II Codes
P
Powertrain
Engine, transmission, fuel system, ignition, emissions
B
Body
Air conditioning, airbags, seat belts, wipers
C
Chassis
ABS, traction control, suspension, steering
U
Network
CAN bus, module communication, data transmission
Showing 1–100 of 742 codes
P0420372 sources
Catalyst System Efficiency Below Threshold (Bank 1)
P0171273 sources
System Too Lean (Bank 1)
P0300317 sources
Random/Multiple Cylinder Misfire Detected
P0174129 sources
System Too Lean (Bank 2)
P0304115 sources
Cylinder 4 Misfire Detected
P013580 sources
O2 Sensor Heater Circuit Malfunction (Bank 1 Sensor 1)
P002164 sources
Intake Camshaft Position Timing - Over-Advanced (Bank 2)
P0301133 sources
Cylinder 1 Misfire Detected
P125954 sources
Immobilizer to PCM Signal Error
P0303132 sources
Cylinder 3 Misfire Detected
P001159 sources
Intake Camshaft Position Timing - Over-Advanced (Bank 1)
P045573 sources
System Gross Leak Evaporative Emission
P002253 sources
Intake Camshaft Position Timing - Over-Retarded (Bank 2)
P0302117 sources
Cylinder 2 Misfire Detected
P034073 sources
Camshaft Position Sensor Circuit Malfunction
P044653 sources
Evaporative Emission Control System Vent Control Circuit Malfunction
P045736 sources
Evaporative Emission Control System Leak Detected
P045684 sources
Evaporative Emissions System Small Leak Detected
P070078 sources
Transmission Control System Malfunction
C1500117 sources
Transfer Case Contact Plate 'B' Encoder Circuit Failure
P032557 sources
Knock Sensor 1 Circuit (Bank 2 or Single Sensor)
P044155 sources
Evaporative Emission Control System Incorrect Purge flow
P030660 sources
Cylinder 6 Misfire Detected
P0430102 sources
Catalyst System Efficiency Below Threshold (Bank 2)
P044345 sources
Evaporative Emission Control System Purge Control Valve circuit Malfunction
P014151 sources
O2 Sensor Heater Circuit Malfunction (Bank 1 Sensor 2)
P015538 sources
O2 Sensor Heater Circuit Malfunction (Bank 2 Sensor 1)
P044248 sources
Evaporative Emission Control System leak Detected (small leak)
P010139 sources
Mass or Volume Air flow Circuit Range/Performance Problem
P174721 sources
Pressure Control Solenoid A Short Circuit
P180024 sources
Transmission Clutch Interlock Safety Switch Circuit Failure
P034545 sources
Camshaft Position Sensor A Circuit (Bank 2)
P001652 sources
Crankshaft Position Camshaft Position Correlation Bank 1 Sensor A
P050736 sources
Idle Control System RPM higher Than Expected
C110016 sources
ABS Pump Switch Circuit Failure
P031646 sources
Misfire Detected On Startup (First 1000 Revolutions)
P034426 sources
Camshaft Position Sensor Circuit Intermittent
P066116 sources
Intake Manifold Tuning Valve Control Circuit Low (Bank 1)
P010246 sources
Mass or Volume Air Flow Circuit low Input
P012521 sources
Insufficient Coolant Temperature for Closed Loop Fuel Control
P040142 sources
Exhaust Gas Recirculation Flow Insufficient Detected
P060024 sources
Serial Communication Link Malfunction
P075217 sources
Shift Solenoid A Stuck On
P139926 sources
Glow Plug Circuit High Side, High Input
U010043 sources
Lost Communication With ECM/PCM A
P017260 sources
System Too Rich (Bank 1)
P030544 sources
Cylinder 5 Misfire Detected
P050035 sources
Vehicle Speed Sensor Malfunction
P077621 sources
Pressure Control Solenoid B Performance or Stuck off
P012866 sources
Coolant Thermostat (Coolant Temp Below Thermostat Regulating Temperature)
P014014 sources
O2 Sensor Circuit No Activity Detected (Bank 1 Sensor 2)
P001029 sources
Intake Camshaft Position Actuator Circuit / Open (Bank 1)
P001827 sources
Crankshaft Position Camshaft Position Correlation Bank 2 Sensor A
P213525 sources
Throttle/Pedal Position Sensor/Switch A / B Voltage Correlation
B143314 sources
Wiper Brake/Run Relay Circuit Short To Ground
C124914 sources
ABS Outlet Valve Coil RR Circuit Short To Ground
P005923 sources
HO2S Heater Resistance (Bank 2, Sensor 1)
P029933 sources
Turbo / Super Charger Underboost
P033018 sources
Knock Sensor 2 Circuit (Bank 2)
P034135 sources
Camshaft Position Sensor Circuit Range/Performance
P034931 sources
Camshaft Position Sensor A Circuit Intermittent (Bank 2)
P046326 sources
Evaporative Emission Control System Pressure Sensor High Input / Fuel Level Sensor Circuit High Input
P050529 sources
Idle Control System Malfunction
P065115 sources
Sensor Reference Voltage B Circuit/Open
P084612 sources
Transmission Fluid Pressure Sensor/Switch B Circuit Range/Performance
P129816 sources
IDM Failure
P149413 sources
SPCUT Solenoid Circuit Malfunction
B159611 sources
Service Continuous Codes
P007317 sources
Ambient Air Temperature Sensor Circuit High Input
P030729 sources
Cylinder 7 Misfire Detected
P030820 sources
Cylinder 8 Misfire Detected
P068516 sources
ECM/PCM Power Relay Control Circuit/Open
P005321 sources
HO2S Heater Resistance Bank 1 Sensor 1 (PCM)
P044022 sources
Evaporative Emission Control System Malfunction
P052117 sources
Engine Oil Pressure Sensor/Switch Range/Performance
P073116 sources
Gear 1 Incorrect Ratio
P074021 sources
Torque Converter Clutch Circuit Malfunction
P200018 sources
NOx Adsorber Efficiency Below Threshold Bank 1
P001513 sources
Exhaust Camshaft Position Timing - Over-Retarded (Bank 1)
P006021 sources
HO2S Heater Resistance (Bank 2, Sensor 2)
P020810 sources
Injector Circuit Malfunction - Cylinder 8
P03898 sources
Crankshaft Position Sensor B Circuit Intermittent
P072025 sources
Output Speed Sensor Circuit Malfunction
P074126 sources
Torque Converter Clutch Circuit Performance or Stuck Off
P074310 sources
Torque Converter Clutch Circuit Electrical
P115112 sources
Lack Of HO2S21 Switch - Sensor Indicates Lean
P12129 sources
Injector Control Pressure Not Detected During Crank
P150910 sources
Idle Control System Circuit Shorted
P157410 sources
Throttle Position Sensor Disagreement btwn Sensors
P18388 sources
Transmission Transfer Case Shift Motor Circuit Failure
U100111 sources
SCP (J1850) Invalid or Missing Data for Primary Id
B14447 sources
Door Handle Switch Circuit Short To Battery
B14487 sources
Wiper Park Sense Circuit Short To Battery
C122312 sources
Lamp Brake Warning Output Circuit Failure
C125510 sources
ABS Inlet Valve Coil RR Circuit Open
P001222 sources
Intake Camshaft Position Timing - Over-Retarded (Bank 1)
P005421 sources
HO2S Heater Resistance Bank 1 Sensor 2 (PCM)
P008726 sources
Fuel Rail/System Pressure - Too Low
P010014 sources
Mass or Volume Air flow Circuit Malfunction
P013718 sources
O2 Sensor Circuit Low Voltage (Bank 1 Sensor 2)
Database includes 742 OBD codes with real owner data.