Diagnostic Trouble Code Search

Find detailed information about vehicle diagnostic trouble codes (DTCs). Enter a code or select a make to search our comprehensive database.

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DTC Code Format Guide
P Powertrain
B Body
C Chassis
U Network

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P Codes

Code Type System System Name Module Message
P0433 P-Code Powertrain Catalyst Engine Control Module Heated Catalyst Efficiency Below Threshold (Bank 2)
P0434 P-Code Powertrain Catalyst Engine Control Module Heated Catalyst Temperature Below Threshold (Bank 2)
P0440 P-Code Powertrain Evaporative Emission Control Engine Control Module Evaporative Emission Control System Malfunction
P0441 P-Code Powertrain Evaporative Emission Control Engine Control Module Evaporative Emission Control System Incorrect Purge flow
P0442 P-Code Powertrain Evaporative Emission Control Engine Control Module Evaporative Emission Control System leak Detected (small leak)
P0443 P-Code Powertrain Evaporative Emission Control Engine Control Module Evaporative Emission Control System Purge Control Valve Circuit Malfunction
P0444 P-Code Powertrain Evaporative Emission Control Engine Control Module Evaporative Emission Control System Purge Control Valve Circuit Open
P0445 P-Code Powertrain Evaporative Emission Control Engine Control Module Evaporative Emission Control System Purge Control Valve Circuit Shorted
P0446 P-Code Powertrain Evaporative Emission Control Engine Control Module Evaporative Emission Control System Vent Control Circuit Malfunction
P0447 P-Code Powertrain Evaporative Emission Control Engine Control Module Evaporative Emission Control System Vent Control Circuit Open
P0448 P-Code Powertrain Evaporative Emission Control Engine Control Module Evaporative Emission Control System Vent Control Circuit Shorted
P0449 P-Code Powertrain Evaporative Emission Control Engine Control Module Evaporative Emission Control System Vent Valve/Solenoid Circuit Malfunction
P0450 P-Code Powertrain Evaporative Emission Control Engine Control Module Evaporative Emission Control System Pressure Sensor Malfunction
P0451 P-Code Powertrain Evaporative Emission Control Engine Control Module Evaporative Emission Control System Pressure Sensor Range/Performance
P0452 P-Code Powertrain Evaporative Emission Control Engine Control Module Evaporative Emission Control System Pressure Sensor Low Input
P0453 P-Code Powertrain Evaporative Emission Control Engine Control Module Evaporative Emission Control System Pressure Sensor High Input
P0454 P-Code Powertrain Evaporative Emission Control Engine Control Module Evaporative Emission Control System Pressure Sensor Intermittent
P0455 P-Code Powertrain Evaporative Emission Control Engine Control Module Evaporative Emission Control System Tank Detected (gross leak)
P0460 P-Code Powertrain Fuel Level Sensor Engine Control Module Fuel Level Sensor Circuit Malfunction
P0461 P-Code Powertrain Fuel Level Sensor Engine Control Module Fuel Level Sensor Circuit Range/Performance