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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.
6,142 Results
P040CCode meaning and manufacturer information1 Manufacturer communicationsP040DEXHAUST GAS RECIRCULATION TEMPERATURE EGRT SENSOR A CIRCUIT HIGHFord · Manufacturer wording3 Manufacturer communicationsP040FEGR Temperature Sensor A-B CorrelationJeep · Manufacturer wording4 Manufacturer communicationsP0410Code meaning and manufacturer information15 Manufacturer communicationsP0411INCORRECT UPSTREAM AIR FLOW DETECTEDFord · Manufacturer wording18 Manufacturer communicationsP0412Secondary Air Injection System Switching Valve "A" Circuit •Toyota · Manufacturer wording6 Manufacturer communicationsP0415Code meaning and manufacturer information1 Manufacturer communicationsP0418Secondary Air Injection System Relay "A" Circuit •Toyota · Manufacturer wording9 Manufacturer communicationsP0419Code meaning and manufacturer information2 Manufacturer communicationsP041BCode meaning and manufacturer information7 Manufacturer communicationsP041CCode meaning and manufacturer information2 Manufacturer communicationsP041DCode meaning and manufacturer information2 Manufacturer communicationsP0420Catalyst efficiency below threshold · Bank 1350 Manufacturer communicationsP0421Catalyst 1 Efficiency Below Threshold Bank 1Ram · Manufacturer wording40 Manufacturer communicationsP0422Code meaning and manufacturer information25 Manufacturer communicationsP0423Heated Catalyst Efficiency Below Threshold Bank 1Ram · Manufacturer wording12 Manufacturer communicationsP0426Catalyst Temperature Sensor Circuit Performance (1/1)Ram · Manufacturer wording12 Manufacturer communicationsP042ECode meaning and manufacturer information4 Manufacturer communicationsP042FCode meaning and manufacturer information5 Manufacturer communicationsP0430Catalyst efficiency below threshold · Bank 2185 Manufacturer communicationsP0431Code meaning and manufacturer information3 Manufacturer communicationsP0432Code meaning and manufacturer information1 Manufacturer communicationsP043EEVAP System Leak Detection Reference Orifice Low FlowAlfa Romeo · Manufacturer wording15 Manufacturer communicationsP043FCode meaning and manufacturer information3 Manufacturer communicationsP0440General EVAP System FailureDodge · Manufacturer wording48 Manufacturer communicationsP0441Evaporative emission system incorrect purge flow212 Manufacturer communicationsP0442Evaporative emission system leak detected · Small leak278 Manufacturer communicationsP0443EVAP Purge Solenoid CircuitDodge · Manufacturer wording25 Manufacturer communicationsP0444PURGE VALVE CIRCUIT OPENLand Rover · Manufacturer wording4 Manufacturer communicationsP0445Code meaning and manufacturer information2 Manufacturer communications