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9,253 diagnostic guides

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These are generic OBD2 definitions. Exact make, model, engine, and year compatibility will appear after vehicle-fitment data is added.

Diagnostic codes

Showing 217–240 of 515

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P2142EGR Throttle Control Circuit A HighCheck soonEmissions SystemP2143EGR Vent Control Circuit/OpenCheck soonEmissions SystemP2144EGR Vent Control Circuit LowCheck soonEmissions SystemP2145EGR Vent Control Circuit HighCheck soonEmissions SystemP214ASCR NOx Catalyst Inlet Temperature Too HighCheck soonEmissions SystemP214BSCR NOx Catalyst Inlet Temperature Too High During Particulate Filter RegenerationCheck soonEmissions SystemP214CSCR NOx Catalyst Outlet Temperature Too HighCheck soonEmissions SystemP214DSCR NOx Catalyst Outlet Temperature Too High During Particulate Filter RegenerationCheck soonEmissions SystemP226DParticulate Filter Deteriorated/Missing Substrate Bank 1Check soonEmissions SystemP226EParticulate Filter Deteriorated/Missing Substrate Bank 2Check soonEmissions SystemP22FFSCR NOx Catalyst Inlet Temperature Too LowCheck soonEmissions SystemP2380EGR Sensor D CircuitCheck soonEmissions SystemP2381EGR Sensor D Circuit HighCheck soonEmissions SystemP2382EGR Sensor D Circuit LowCheck soonEmissions SystemP2383EGR Sensor D Circuit Range/PerformanceCheck soonEmissions SystemP2384EGR Sensor D Circuit IntermittentCheck soonEmissions SystemP2385EGR Sensor E CircuitCheck soonEmissions SystemP2386EGR Sensor E Circuit HighCheck soonEmissions SystemP2387EGR Sensor E Circuit LowCheck soonEmissions SystemP2388EGR Sensor E Circuit Range/PerformanceCheck soonEmissions SystemP2389EGR Sensor E Circuit IntermittentCheck soonEmissions SystemP23E1EGR C Control Circuit/OpenCheck soonEmissions SystemP23E2EGR C Control Circuit PerformanceCheck soonEmissions SystemP23E3EGR C Control Circuit LowCheck soonEmissions System