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Fault codes P23xx: ignition, turbo and mixture

Engine and transmission codes common to all makes (SAE J2012 standard).

Official codes: 256, from smallest to largest. Tap a code to get a direct link to share.

CodeMeaning
P2300Ignition Coil A Primary Control Circuit Low
P2301Ignition Coil A Primary Control Circuit High
P2302Ignition Coil A Secondary Circuit
P2303Ignition Coil B Primary Control Circuit Low
P2304Ignition Coil B Primary Control Circuit High
P2305Ignition Coil B Secondary Circuit
P2306Ignition Coil C Primary Control Circuit Low
P2307Ignition Coil C Primary Control Circuit High
P2308Ignition Coil C Secondary Circuit
P2309Ignition Coil D Primary Control Circuit Low
P230ACylinder 1 Air-Fuel Ratio Imbalance Adjustment At Limit During Balance
P230BCylinder 2 Air-Fuel Ratio Imbalance Adjustment At Limit During Balance
P230CCylinder 3 Air-Fuel Ratio Imbalance Adjustment At Limit During Balance
P230DCylinder 4 Air-Fuel Ratio Imbalance Adjustment At Limit During Balance
P230ECylinder 5 Air-Fuel Ratio Imbalance Adjustment At Limit During Balance
P230FCylinder 6 Air-Fuel Ratio Imbalance Adjustment At Limit During Balance
P2310Ignition Coil D Primary Control Circuit High
P2311Ignition Coil D Secondary Circuit
P2312Ignition Coil E Primary Control Circuit Low
P2313Ignition Coil E Primary Control Circuit High
P2314Ignition Coil E Secondary Circuit
P2315Ignition Coil F Primary Control Circuit Low
P2316Ignition Coil F Primary Control Circuit High
P2317Ignition Coil F Secondary Circuit
P2318Ignition Coil G Primary Control Circuit Low
P2319Ignition Coil G Primary Control Circuit High
P231ACylinder 7 Air-Fuel Ratio Imbalance Adjustment At Limit During Balance
P231BCylinder 8 Air-Fuel Ratio Imbalance Adjustment At Limit During Balance
P231CCylinder 9 Air-Fuel Ratio Imbalance Adjustment At Limit During Balance
P231DCylinder 10 Air-Fuel Ratio Imbalance Adjustment At Limit During Balance
P231ECylinder 11 Air-Fuel Ratio Imbalance Adjustment At Limit During Balance
P231FCylinder 12 Air-Fuel Ratio Imbalance Adjustment At Limit During Balance
P2320Ignition Coil G Secondary Circuit
P2321Ignition Coil H Primary Control Circuit Low
P2322Ignition Coil H Primary Control Circuit High
P2323Ignition Coil H Secondary Circuit
P2324Ignition Coil I Primary Control Circuit Low
P2325Ignition Coil I Primary Control Circuit High
P2326Ignition Coil I Secondary Circuit
P2327Ignition Coil J Primary Control Circuit Low
P2328Ignition Coil J Primary Control Circuit High
P2329Ignition Coil J Secondary Circuit
P232ATCM Request Forced Engine Shutdown
P232BCylinder 11 Fuel Injector A Offset Learning At Min Limit
P232CCylinder 11 Fuel Injector A Offset Learning At Max Limit
P232DCylinder 12 Fuel Injector A Offset Learning At Min Limit
P232ECylinder 12 Fuel Injector A Offset Learning At Max Limit
P232FO2 Sensor Out of Range During Deceleration Bank 1 Sensor 2
P2330Ignition Coil K Primary Control Circuit Low
P2331Ignition Coil K Primary Control Circuit High
P2332Ignition Coil K Secondary Circuit
P2333Ignition Coil L Primary Control Circuit Low
P2334Ignition Coil L Primary Control Circuit High
P2335Ignition Coil L Secondary Circuit
P2336Cylinder 1 Above Knock Threshold
P2337Cylinder 2 Above Knock Threshold
P2338Cylinder 3 Above Knock Threshold
P2339Cylinder 4 Above Knock Threshold
P233AFuel Pressure Regulator C Control Circuit Open
P233BFuel Pressure Regulator C Control Circuit Low
P233CFuel Pressure Regulator C Control Circuit High
P233DFuel Pressure Regulator B Solenoid Supply Voltage Control Circuit Open
P233EFuel Pressure Regulator B Solenoid Supply Voltage Control Circuit Low
P233FFuel Pressure Regulator B Solenoid Supply Voltage Control Circuit High
P2340Cylinder 5 Above Knock Threshold
P2341Cylinder 6 Above Knock Threshold
P2342Cylinder 7 Above Knock Threshold
P2343Cylinder 8 Above Knock Threshold
P2344Cylinder 9 Above Knock/Combustion Vibration Sensor Threshold
P2345Cylinder 10 Above Knock/Combustion Vibration Sensor Threshold
P2346Cylinder 11 Above Knock/Combustion Vibration Sensor Threshold
P2347Cylinder 12 Above Knock/Combustion Vibration Sensor Threshold
P2348Cylinder 9 Pressure Sensor Circuit
P2349Cylinder 9 Pressure Sensor Circuit Range/Performance
P234ACylinder 9 Pressure Sensor Circuit Low
P234BCylinder 9 Pressure Sensor Circuit High
P234CCylinder 9 Pressure Sensor Circuit Intermittent or Erratic
P234DCylinder 9 Pressure Too Low
P234ECylinder 9 Pressure Too High
P234FCylinder 9 Pressure Variation Low
P2350Cylinder 9 Pressure Variation High
P2351Cylinder 9 Combustion Performance
P2352Cylinder 10 Pressure Sensor Circuit
P2353Cylinder 10 Pressure Sensor Circuit Range/Performance
P2354Cylinder 10 Pressure Sensor Circuit Low
P2355Cylinder 10 Pressure Sensor Circuit High
P2356Cylinder 10 Pressure Sensor Circuit Intermittent or Erratic
P2357Cylinder 10 Pressure Too Low
P2358Cylinder 10 Pressure Too High
P2359Ignition Coil L Secondary Circuit
P235ACylinder 10 Pressure Variation High
P235BCylinder 10 Combustion Performance
P235CCylinder 11 Pressure Sensor Circuit
P235DCylinder 11 Pressure Sensor Circuit Range/Performance
P235ECylinder 11 Pressure Sensor Circuit Low
P235FCylinder 11 Pressure Sensor Circuit High
P2360Cylinder 11 Pressure Sensor Circuit Intermittent or Erratic
P2361Cylinder 11 Pressure Too Low
P2362Glow Plug Module Control Module Power Circuit Low
P2363Glow Plug Module Control Module Power Circuit High
P2364Cylinder 11 Pressure Variation High
P2365Cylinder 11 Combustion Performance
P2366Cylinder 12 Pressure Sensor Circuit
P2367Cylinder 12 Pressure Sensor Circuit Range/Performance
P2368Cylinder 12 Pressure Sensor Circuit Low
P2369Cylinder 12 Pressure Sensor Circuit High
P236ACylinder 12 Pressure Sensor Circuit Intermittent or Erratic
P236BCylinder 12 Pressure Too Low
P236CCylinder 12 Pressure Too High
P236DCylinder 12 Pressure Variation Low
P236ECylinder 12 Pressure Variation High
P236FCylinder 12 Combustion Performance
P2370Fuel Volume Regulator B Control Circuit Open
P2371Fuel Volume Regulator B Control Circuit Performance
P2372Fuel Volume Regulator B Control Circuit Low
P2373Fuel Volume Regulator B Control Circuit High
P2374Turbocharger Inlet Pressure Sensor B Circuit
P2375Turbocharger Inlet Pressure Sensor B Circuit Range or Performance
P2376Turbocharger Inlet Pressure Sensor B Circuit Low
P2377Turbocharger Inlet Pressure Sensor B Circuit High
P2378Turbocharger Inlet Pressure Sensor B Circuit Intermittent or Erratic
P2379O2 Sensor Out of Range During Deceleration Bank 2 Sensor 2
P237AO2 Sensor Exhaust Sample Error Bank 1 Sensor 2
P237BO2 Sensor Exhaust Sample Error Bank 2 Sensor 2
P237CExhaust Heat Exchanger Bypass Valve A Control Circuit Open
P237DExhaust Heat Exchanger Bypass Valve A Control Circuit Low
P237EExhaust Heat Exchanger Bypass Valve A Control Circuit High
P237FExhaust Heat Exchanger Bypass Valve A Control Performance
P2380Wait to Start Lamp Control Circuit
P2381EGR Sensor D Circuit High
P2382EGR Sensor D Circuit Low
P2383EGR Sensor D Circuit Range or Performance
P2384EGR Sensor D Circuit Intermittent
P2385EGR Sensor E Circuit
P2386EGR Sensor E Circuit High
P2387EGR Sensor E Circuit Low
P2388EGR Sensor E Circuit Range or Performance
P2389EGR Sensor E Circuit Intermittent
P238AWater in Fuel Sensor B Circuit
P238BWater in Fuel Sensor B Circuit Range or Performance
P238CWater in Fuel Sensor B Circuit Low
P238DWater in Fuel Sensor B Circuit High
P238EWater in Fuel Sensor B Circuit Intermittent
P238FWater in Fuel Condition Sensor B
P2390Diesel Intake Air Flow B Control Circuit Open
P2391Diesel Intake Air Flow B Control Performance
P2392Diesel Intake Air Flow B Control Circuit Low
P2393Diesel Intake Air Flow B Control Circuit High
P2394Diesel Intake Air Flow B Control Stuck Open
P2395Diesel Intake Air Flow B Control Stuck Closed
P2396Diesel Intake Air Flow B Position Sensor Circuit
P2397Diesel Intake Air Flow B Position Sensor Range or Performance
P2398Diesel Intake Air Flow B Position Sensor Circuit Low
P2399Diesel Intake Air Flow B Position Sensor Circuit High
P239ADiesel Intake Air Flow B Position Sensor Circuit Intermittent or Erratic
P239BDiesel Intake Air Flow B Control Motor Current Range or Performance
P239CDiesel Intake Air Flow B Control System High Air Flow Detected
P239DDiesel Intake Air Flow B Control System Low Air Flow Detected
P239EO2 Sensor Out of Range During Deceleration Bank 1 Sensor 2
P239FO2 Sensor Out of Range During Deceleration Bank 2 Sensor 2
P23A0O2 Sensor Exhaust Sample Error Bank 1 Sensor 2
P23A1O2 Sensor Exhaust Sample Error Bank 2 Sensor 2
P23A2Exhaust Heat Exchanger Bypass Valve B Control Circuit Open
P23A3Exhaust Heat Exchanger Bypass Valve B Control Circuit Low
P23A4Exhaust Heat Exchanger Bypass Valve B Control Circuit High
P23A5Exhaust Heat Exchanger Bypass Valve B Control Performance
P23A6Exhaust Heat Exchanger Bypass Valve B Stuck Open
P23A7Exhaust Heat Exchanger Bypass Valve B Stuck Closed
P23A8Exhaust Heat Exchanger Bypass Valve B Position Sensor Stop Performance
P23A9Communication Fault Forced Engine Shutdown
P23AATurbocharger Bypass Valve A Stuck
P23ABNOx Sensor Processor Performance Bank 1 Sensor 3
P23ACNOx Sensor Circuit Bank 1 Sensor 3
P23ADNOx Sensor Circuit Range or Performance Bank 1 Sensor 3
P23AENOx Sensor Circuit Low Bank 1 Sensor 3
P23AFNOx Sensor Circuit High Bank 1 Sensor 3
P23B0NOx Sensor Circuit Intermittent Bank 1 Sensor 3
P23B1NOx Sensor Heater Control Circuit Open Bank 1 Sensor 3
P23B2NOx Sensor Heater Control Circuit Low Bank 1 Sensor 3
P23B3NOx Sensor Heater Control Circuit High Bank 1 Sensor 3
P23B4NOx Sensor Heater Sense Circuit Bank 1 Sensor 3
P23B5NOx Sensor Heater Sense Circuit Range or Performance Bank 1 Sensor 3
P23B6NOx Sensor Supply Voltage Circuit Bank 1 Sensor 3
P23B7NOx Sensor Heater Control Circuit Range or Performance Bank 1 Sensor 3
P23B8NOx Sensor Heater Sense Circuit Low Bank 1 Sensor 3
P23B9NOx Sensor Heater Sense Circuit High Bank 1 Sensor 3
P23BANOx Sensor Heater Sense Circuit Intermittent Bank 1 Sensor 3
P23BBNOx Sensor Heater Resistance Bank 1 Sensor 3
P23BCNOx Sensor Calibration Memory Bank 1 Sensor 3
P23BDNOx Sensor Performance Signal Biased or Stuck High Bank 1 Sensor 3
P23BENOx Sensor Performance Signal Biased or Stuck Low Bank 1 Sensor 3
P23BFNOx Sensor Performance Slow Response Low to High Bank 1 Sensor 3
P23C0NOx Sensor Performance Slow Response High to Low Bank 1 Sensor 3
P23C1NOx Sensor Sensing Element Bank 1 Sensor 3
P23C2NOx Sensor Delayed Response High to Low Bank 1 Sensor 3
P23C3Engine Coolant Bypass Valve C Position Sensor Circuit
P23C4Engine Coolant Bypass Valve C Position Sensor Circuit Low
P23C5Engine Coolant Bypass Valve C Position Sensor Circuit High
P23C6Engine Coolant Bypass Valve C Control Circuit Driver Current or Temperature Too High
P23C7Fuel Heater Control Module Power Control Circuit Open
P23C8Fuel Heater Control Module Power Control Circuit Low
P23C9Fuel Heater Control Module Power Control Circuit High
P23CAFuel Rail Heater Control Circuit Open
P23CBFuel Rail Heater Control Circuit Low
P23CCFuel Rail Heater Control Circuit High
P23CDFuel Heater Control Module Feedback Signal Open
P23CEFuel Heater Control Module Feedback Signal Performance
P23CFFuel Heater Control Module Feedback Signal Circuit Low
P23D0Fuel Heater Control Module Feedback Signal Circuit High
P23D1Cylinder 1 Fuel Heater Control Circuit Open
P23D2Cylinder 1 Fuel Heater Control Circuit High
P23D3Cylinder 1 Fuel Heater Control Circuit Low
P23D4Cylinder 1 Fuel Heater Performance
P23D5Cylinder 2 Fuel Heater Control Circuit Open
P23D6Cylinder 2 Fuel Heater Control Circuit High
P23D7Cylinder 2 Fuel Heater Control Circuit Low
P23D8Cylinder 2 Fuel Heater Performance
P23D9Cylinder 3 Fuel Heater Control Circuit Open
P23DACylinder 3 Fuel Heater Control Circuit High
P23DBCylinder 3 Fuel Heater Control Circuit Low
P23DCCylinder 3 Fuel Heater Performance
P23DDCylinder 4 Fuel Heater Control Circuit Open
P23DECylinder 4 Fuel Heater Control Circuit High
P23DFCylinder 4 Fuel Heater Control Circuit Low
P23E0Cylinder 4 Fuel Heater Performance
P23E1EGR C Control Circuit Open
P23E2EGR C Control Circuit Performance
P23E3EGR C Control Circuit Low
P23E4EGR C Control Circuit High
P23E5EGR C Control Stuck Open
P23E6EGR C Control Stuck Closed
P23E7EGR C Flow Insufficient Detected
P23E8EGR C Flow Excessive Detected
P23E9Camshaft A Position Signal Output Circuit Open Bank 2
P23EACamshaft A Position Signal Output Circuit Low Bank 2
P23EBCamshaft A Position Signal Output Circuit High Bank 2
P23ECCamshaft B Position Signal Output Circuit Open Bank 1
P23EDCamshaft B Position Signal Output Circuit Low Bank 1
P23EECamshaft B Position Signal Output Circuit High Bank 1
P23EFCamshaft B Position Signal Output Circuit Open Bank 2
P23F0Camshaft B Position Signal Output Circuit Low Bank 2
P23F1Camshaft B Position Signal Output Circuit High Bank 2
P23F2Cylinder 1 Injector B Air-Fuel Ratio Imbalance
P23F3Cylinder 2 Injector B Air-Fuel Ratio Imbalance
P23F4Cylinder 3 Injector B Air-Fuel Ratio Imbalance
P23F5Cylinder 4 Injector B Air-Fuel Ratio Imbalance
P23F6Cylinder 5 Injector B Air-Fuel Ratio Imbalance
P23F7Cylinder 6 Injector B Air-Fuel Ratio Imbalance
P23F8Cylinder 7 Injector B Air-Fuel Ratio Imbalance
P23F9Cylinder 8 Injector B Air-Fuel Ratio Imbalance
P23FACylinder 9 Injector B Air-Fuel Ratio Imbalance
P23FBCylinder 10 Injector B Air-Fuel Ratio Imbalance
P23FCCylinder 11 Injector B Air-Fuel Ratio Imbalance
P23FDCylinder 12 Injector B Air-Fuel Ratio Imbalance
P23FEBank 1 System B Air-Fuel Ratio Imbalance
P23FFBank 2 System B Air-Fuel Ratio Imbalance

← P22xx · P24xx →

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Official meanings: OBDex (public domain, CC0). Manufacturer codes: dtc-database (MIT license), probable meanings not verified by the manufacturers. The same meaning can vary depending on the model: always have a diagnosis confirmed by a professional.