CODE DIRECTORY
Powertrain · Codes
A code index built from manufacturer communications filed with NHTSA in the United States. Vehicle-specific and enhanced codes are included; this is not a list of universal definitions.
3,969 Results
P0413Secondary Air Injection System Switching Valve A Circuit OpenP0414Secondary Air Injection System Switching Valve A Circuit ShortedP0415Secondary Air Injection System Switching Valve B Circuit MalfunctionP0416Secondary Air Injection System Switching Valve B Circuit OpenP0417Secondary Air Injection System Switching Valve B Circuit ShortedP0418Secondary Air Injection System Relay "A" Circuit •Toyota · Manufacturer wordingP0419Secondary Air Injection System Relay B Circuit MalfunctionP041BCode meaning and manufacturer informationP041CCode meaning and manufacturer informationP041DCode meaning and manufacturer informationP0420Catalyst efficiency below threshold · Bank 1P0421Catalyst 1 Efficiency Below Threshold Bank 1Ram · Manufacturer wordingP0422Main Catalyst Efficiency Below Threshold (Bank 1)P0423Heated Catalyst Efficiency Below Threshold Bank 1Ram · Manufacturer wordingP0424Heated Catalyst Temperature Below Threshold (Bank 1)P0426Catalyst Temperature Sensor Circuit Performance (1/1)Ram · Manufacturer wordingP042ECode meaning and manufacturer informationP042FCode meaning and manufacturer informationP0430Catalyst efficiency below threshold · Bank 2P0431Warm Up Catalyst Efficiency Below Threshold (Bank 2)P0432Main Catalyst Efficiency Below Threshold (Bank 2)P0433Heated Catalyst Efficiency Below Threshold (Bank 2)P0434Heated Catalyst Temperature Below Threshold (Bank 2)P043EEVAP System Leak Detection Reference Orifice Low FlowAlfa Romeo · Manufacturer wordingP043FCode meaning and manufacturer informationP0440General EVAP System FailureDodge · Manufacturer wordingP0441Evaporative emission system incorrect purge flowP0442Evaporative emission system leak detected · Small leakP0443EVAP Purge Solenoid CircuitDodge · Manufacturer wordingP0444PURGE VALVE CIRCUIT OPENLand Rover · Manufacturer wording