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Generic OBD-II code references — Page 55.

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9,249 code references for Generic OBD-II

Generic OBD-II
P2405

EVAP System Leak Detection Pump Sense Circuit Low

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Generic OBD-II
P2406

EVAP System Leak Detection Pump Sense Circuit High

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Generic OBD-II
P2407

EVAP System Leak Detection Pump Sense Circuit Intermittent/Erratic

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Generic OBD-II
P2408

Fuel Cap Sensor/Switch Circuit

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Generic OBD-II
P2409

Fuel Cap Sensor/Switch Circuit Range/Performance

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Generic OBD-II
P240A

EVAP System Leak Detection Pump Heater Control Circuit/Open

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Generic OBD-II
P240B

EVAP System Leak Detection Pump Heater Control Circuit Low

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Generic OBD-II
P240C

EVAP System Leak Detection Pump Heater Control Circuit High

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Generic OBD-II
P240D

Alternative Fuel Low Pressure System Leak

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Generic OBD-II
P240E

Alternative Fuel High Pressure System Leak

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Generic OBD-II
P240F

EGR Slow Response

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Generic OBD-II
P2410

Fuel Cap Sensor/Switch Circuit Low

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Generic OBD-II
P2411

Fuel Cap Sensor/Switch Circuit High

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Generic OBD-II
P2412

Fuel Cap Sensor/Switch Circuit Intermittent/Erratic

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Generic OBD-II
P2413

EGR System Performance

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Generic OBD-II
P2414

O2 Sensor Exhaust Sample Error Bank 1 Sensor 1

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Generic OBD-II
P2415

O2 Sensor Exhaust Sample Error Bank 2 Sensor 1

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Generic OBD-II
P2416

O2 Sensor Signals Swapped Bank 1 Sensor 2/Bank 1 Sensor 3

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Generic OBD-II
P2417

O2 Sensor Signals Swapped Bank 2 Sensor 2/Bank 2 Sensor 3

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Generic OBD-II
P2418

EVAP System Switching Valve Control Circuit/Open

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Generic OBD-II
P2419

EVAP System Switching Valve Control Circuit Low

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Generic OBD-II
P241A

O2 Sensor Signals Swapped Bank 1 Sensor 1/Bank 1 Sensor 2

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Generic OBD-II
P241B

O2 Sensor Signals Swapped Bank 2 Sensor 1/Bank 2 Sensor 2

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Generic OBD-II
P241C

Throttle Actuator Control System - Ice Blockage Bank 2

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Generic OBD-II
P241D

SCR Inducement - Forced Engine Shutdown

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Generic OBD-II
P241E

Reductant Heater Coolant Control Valve Stuck Closed

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Generic OBD-II
P241F

EGR Cooler B Efficiency Below Threshold

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Generic OBD-II
P2420

EVAP System Switching Valve Control Circuit High

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Generic OBD-II
P2421

EVAP System Vent Valve Stuck Open

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Generic OBD-II
P2422

EVAP System Vent Valve Stuck Closed

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Generic OBD-II
P2423

HC Adsorption Catalyst Efficiency Below Threshold Bank 1

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Generic OBD-II
P2424

HC Adsorption Catalyst Efficiency Below Threshold Bank 2

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Generic OBD-II
P2425

EGR Cooling Valve Control Circuit/Open

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Generic OBD-II
P2426

EGR Cooling Valve Control Circuit Low

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Generic OBD-II
P2427

EGR Cooling Valve Control Circuit High

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Generic OBD-II
P2428

Exhaust Gas Temperature Too High Bank 1

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Generic OBD-II
P2429

Exhaust Gas Temperature Too High Bank 2

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Generic OBD-II
P242A

Exhaust Gas Temperature Sensor Circuit Bank 1 Sensor 3

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Generic OBD-II
P242B

Exhaust Gas Temperature Sensor Circuit Range/Performance Bank 1 Sensor 3

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Generic OBD-II
P242C

Exhaust Gas Temperature Sensor Circuit Low Bank 1 Sensor 3

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Generic OBD-II
P242D

Exhaust Gas Temperature Sensor Circuit High Bank 1 Sensor 3

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Generic OBD-II
P242E

Exhaust Gas Temperature Sensor Circuit Intermittent/Erratic Bank 1 Sensor 3

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Generic OBD-II
P242F

Particulate Filter Restriction - Ash Accumulation Bank 1

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Generic OBD-II
P2430

AIR System Air Flow/Pressure Sensor Circuit Bank 1

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Generic OBD-II
P2431

AIR System Air Flow/Pressure Sensor Circuit Range/Performance Bank 1

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Generic OBD-II
P2432

AIR System Air Flow/Pressure Sensor Circuit Low Bank 1

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Generic OBD-II
P2433

AIR System Air Flow/Pressure Sensor Circuit High Bank 1

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Generic OBD-II
P2434

AIR System Air Flow/Pressure Sensor Circuit Intermittent/Erratic Bank 1

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Generic OBD-II
P2435

AIR System Air Flow/Pressure Sensor Circuit Bank 2

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Generic OBD-II
P2436

AIR System Air Flow/Pressure Sensor Circuit Range/Performance Bank 2

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Generic OBD-II
P2437

AIR System Air Flow/Pressure Sensor Circuit Low Bank 2

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Generic OBD-II
P2438

AIR System Air Flow/Pressure Sensor Circuit High Bank 2

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Generic OBD-II
P2439

AIR System Air Flow/Pressure Sensor Circuit Intermittent/Erratic Bank 2

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Generic OBD-II
P243A

Particulate Filter Restriction - Ash Accumulation Bank 2

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Generic OBD-II
P243B

Particulate Filter Restriction - Forced Limited Power Bank 2

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Generic OBD-II
P243C

Particulate Filter Regeneration Frequency Bank 2

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Generic OBD-II
P243D

Particulate Filter Regeneration Duration Bank 2

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Generic OBD-II
P243E

Particulate Filter Regeneration Incomplete Bank 2

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Generic OBD-II
P243F

Particulate Filter Restriction - Soot Accumulation Too High Bank 2

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Generic OBD-II
P2440

AIR System Switching Valve Stuck Open Bank 1

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Generic OBD-II
P2441

AIR System Switching Valve Stuck Closed Bank 1

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Generic OBD-II
P2442

AIR System Switching Valve Stuck Open Bank 2

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Generic OBD-II
P2443

AIR System Switching Valve Stuck Closed Bank 2

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Generic OBD-II
P2444

AIR System Pump Stuck On Bank 1

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Generic OBD-II
P2445

AIR System Pump Stuck Off Bank 1

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Generic OBD-II
P2446

AIR System Pump Stuck On Bank 2

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Generic OBD-II
P2447

AIR System Pump Stuck Off Bank 2

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Generic OBD-II
P2448

AIR System High Air Flow Bank 1

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Generic OBD-II
P2449

AIR System High Air Flow Bank 2

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Generic OBD-II
P244A

Particulate Filter Differential Pressure Too Low Bank 1

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Generic OBD-II
P244B

Particulate Filter Differential Pressure Too High Bank 1

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Generic OBD-II
P244C

Exhaust Temperature Too Low For Particulate Filter Regeneration Bank 1

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Generic OBD-II
P244D

Exhaust Temperature Too High For Particulate Filter Regeneration Bank 1

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Generic OBD-II
P244E

Exhaust Temperature Too Low For Particulate Filter Regeneration Bank 2

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Generic OBD-II
P244F

Exhaust Temperature Too High For Particulate Filter Regeneration Bank 2

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Generic OBD-II
P2450

EVAP System Switching Valve Performance/Stuck Open

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Generic OBD-II
P2451

EVAP System Switching Valve Stuck Closed

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Generic OBD-II
P2452

Particulate Filter Pressure Sensor A Circuit

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Generic OBD-II
P2453

Particulate Filter Pressure Sensor A Circuit Range/Performance

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Generic OBD-II
P2454

Particulate Filter Pressure Sensor A Circuit Low

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Generic OBD-II
P2455

Particulate Filter Pressure Sensor A Circuit High

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Generic OBD-II
P2456

Particulate Filter Pressure Sensor A Circuit Intermittent/Erratic

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Generic OBD-II
P2457

EGR Cooler A Efficiency Below Threshold

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Generic OBD-II
P2458

Particulate Filter Regeneration Duration Bank 1

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Generic OBD-II
P2459

Particulate Filter Regeneration Frequency Bank 1

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Generic OBD-II
P245A

EGR Cooler Bypass Control Circuit/Open Bank 1

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Generic OBD-II
P245B

EGR Cooler Bypass Control Circuit Range/Performance Bank 1

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Generic OBD-II
P245C

EGR Cooler Bypass Control Circuit Low Bank 1

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Generic OBD-II
P245D

EGR Cooler Bypass Control Circuit High Bank 1

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Generic OBD-II
P245E

Particulate Filter Pressure Sensor B Circuit

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Generic OBD-II
P245F

Particulate Filter Pressure Sensor B Circuit Range/Performance

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Generic OBD-II
P2460

Particulate Filter Pressure Sensor B Circuit Low

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Generic OBD-II
P2461

Particulate Filter Pressure Sensor B Circuit High

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Generic OBD-II
P2462

Particulate Filter Pressure Sensor B Circuit Intermittent/Erratic

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Generic OBD-II
P2463

Particulate Filter Restriction - Soot Accumulation Bank 1

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Generic OBD-II
P2464

Particulate Filter Differential Pressure Too Low Bank 2

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Generic OBD-II
P2465

Particulate Filter Differential Pressure Too High Bank 2

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Generic OBD-II
P2466

Exhaust Gas Temperature Sensor Circuit Bank 2 Sensor 3

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Generic OBD-II
P2467

Exhaust Gas Temperature Sensor Circuit Range/Performance Bank 2 Sensor 3

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Generic OBD-II
P2468

Exhaust Gas Temperature Sensor Circuit Low Bank 2 Sensor 3

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These are code references, not a list of confirmed faults on every vehicle. Read the source and applicability notes, then match the exact vehicle, year, engine and scan report.