Powertrain OBD-II Codes (Pxxxx)
1246 diagnostic trouble codes
Powertrain codes cover the engine, transmission, fuel system, emissions controls, and ignition system. These are the most common OBD-II codes, triggered when the engine control module (ECM) or transmission control module (TCM) detects a malfunction.
P0381Glow Plug/Heater Indicator Circuit MalfunctionGenericP0382Glow Plug/Heater Circuit “B” MalfunctionGenericP0385Crankshaft Position Sensor B Circuit MalfunctionGenericP0386Crankshaft Position Sensor B Circuit Range/PerformanceGenericP0387Crankshaft Position Sensor B Circuit Low InputGenericP0388Crankshaft Position Sensor B Circuit High InputGenericP0389Crankshaft Position Sensor B Circuit IntermittentGenericP0400Exhaust Gas Recirculation Flow MalfunctionGenericP0401Exhaust Gas Recirculation Flow Insufficient DetectedGenericP0402Exhaust Gas Recirculation Flow Excessive DetectedGenericP0403Exhaust Gas Recirculation Circuit MalfunctionGenericP0404Exhaust Gas Recirculation Circuit Range/PerformanceGenericP0405Exhaust Gas Recirculation Sensor A Circuit LowGenericP0406Exhaust Gas Recirculation Sensor A Circuit HighGenericP0407Exhaust Gas Recirculation Sensor B Circuit LowGenericP0408Exhaust Gas Recirculation Sensor B Circuit HighGenericP0410Secondary Air Injection System MalfunctionGenericP0411Secondary Air Injection System Incorrect Flow DetectedGenericP0412Secondary Air Injection System Switching Valve A Circuit MalfunctionGenericP0413Secondary Air Injection System Switching Valve A Circuit OpenGenericP0414Secondary Air Injection System Switching Valve A Circuit ShortedGenericP0415Secondary Air Injection System Switching Valve B Circuit MalfunctionGenericP0416Secondary Air Injection System Switching Valve B Circuit OpenGenericP0417Secondary Air Injection System Switching Valve B Circuit ShortedGenericP0418Secondary Air Injection System Relay A circuit MalfunctionGenericP0419Secondary Air Injection System Relay B Circuit MalfunctionGenericP0420Catalyst System Efficiency Below Threshold (Bank 1)GenericP0421Warm Up Catalyst Efficiency Below Threshold (Bank 1)GenericP0422Main Catalyst Efficiency Below Threshold (Bank 1)GenericP0423Heated Catalyst Efficiency Below Threshold (Bank l)GenericP0424Heated Catalyst Temperature Below Threshold (Bank 1)GenericP0430Catalyst System Efficiency Below Threshold (Bank 2)GenericP0431Warm Up Catalyst Efficiency Below Threshold (Bank 2)GenericP0432Main Catalyst Efficiency Below Threshold (Bank 2)GenericP0433Heated Catalyst Efficiency Below Threshold (Bank 2)GenericP0434Heated Catalyst Temperature Below Threshold (Bank 2)GenericP0440Evaporative Emission Control System MalfunctionGenericP0441Evaporative Emission Control System Incorrect Purge flowGenericP0442Evaporative Emission Control System leak Detected (small leak)GenericP0443Evaporative Emission Control System Purge Control Valve circuit MalfunctionGenericP0444Evaporative Emission Control System Purge Control Valve Circuit OpenGenericP0445Evaporative Emission Control System Purge Control Valve Circuit ShortedGenericP0446Evaporative Emission Control System Vent Control Circuit MalfunctionGenericP0447Evaporative Emission Control System Vent Control Circuit OpenGenericP0448Evaporative Emission Control System Vent Control Circuit ShortedGenericP0449Evaporative Emission Control System Vent Valve/Solenoid Circuit MalfunctionGenericP0450Evaporative Emission Control System Pressure Sensor MalfunctionGenericP0451Evaporative Emission Control System Pressure Sensor Range/PerformanceGenericP0452Evaporative Emission Control System Pressure Sensor Low InputGenericP0453Evaporative Emission Control System Pressure Sensor High InputGeneric