P24xx fault codes
256 generic codes from P2400 to P24FF, with what each means.
- P2400 EVAP System Leak Detection Pump Control Circuit/Open
- P2401 EVAP Leak Detection Pump Control Circuit Low
- P2402 EVAP Leak Detection Pump Control Circuit High
- P2403 EVAP System Leak Detection Pump Sense Circuit/Open
- P2404 EVAP Leak Detection Pump Sense Circuit Range/Performance
- P2405 EVAP System Leak Detection Pump Sense Circuit Low
- P2406 EVAP System Leak Detection Pump Sense Circuit High
- P2407 EVAP System Leak Detection Pump Sense Circuit Intermittent/Erratic
- P2408 Fuel Cap Sensor/Switch Circuit
- P2409 Fuel Cap Sensor or Switch Circuit Range or Performance
- P240A EVAP System Leak Detection Pump Heater Control Circuit/Open
- P240B EVAP System Leak Detection Pump Heater Control Circuit Low
- P240C EVAP System Leak Detection Pump Heater Control Circuit High
- P240D Alternative Fuel Low Pressure System Leak
- P240E Alternative Fuel High Pressure System Leak
- P240F EGR Slow Response
- P2410 Fuel Cap Sensor/Switch Circuit Low
- P2411 Fuel Cap Sensor/Switch Circuit High
- P2412 Fuel Cap Sensor or Switch Circuit Intermittent or Erratic
- P2413 EGR System Performance
- P2414 O2 Sensor Exhaust Sample Error Bank 1 Sensor 1
- P2415 O2 Sensor Exhaust Sample Error Bank 2 Sensor 1
- P2416 O2 Sensor Signals Swapped Bank 1 Sensor 2/Bank 1 Sensor 3
- P2417 O2 Sensor Signals Swapped Bank 2 Sensor 2/Bank 2 Sensor 3
- P2418 EVAP System Switching Valve Control Circuit/Open
- P2419 EVAP System Switching Valve Control Circuit Low
- P241A O2 Sensor Signals Swapped Bank 1 Sensor 1/Bank 1 Sensor 2
- P241B O2 Sensor Signals Swapped Bank 2 Sensor 1/Bank 2 Sensor 2
- P241C Throttle Actuator Control System Ice Blockage Bank 2
- P241D SCR Inducement Forced Engine Shutdown
- P241E Reductant Heater Coolant Control Valve Stuck Closed
- P241F EGR Cooler B Efficiency Below Threshold
- P2420 EVAP System Switching Valve Control Circuit High
- P2421 EVAP System Vent Valve Stuck Open
- P2422 EVAP System Vent Valve Stuck Closed
- P2423 HC Adsorption Catalyst Efficiency Below Threshold Bank 1
- P2424 HC Adsorption Catalyst Efficiency Below Threshold Bank 2
- P2425 Exhaust Gas Recirculation Cooling Valve Control Circuit/Open
- P2426 Exhaust Gas Recirculation Cooling Valve Control Circuit Low
- P2427 Exhaust Gas Recirculation Cooling Valve Control Circuit High
- P2428 Exhaust Gas Temperature Too High Bank 1
- P2429 Exhaust Gas Temperature Too High Bank 2
- P242A Exhaust Gas Temperature Sensor Circuit Bank 1 Sensor 3
- P242B Exhaust Gas Temperature Sensor Circuit Range or Performance Bank 1 Sensor 3
- P242C Exhaust Gas Temperature Sensor Circuit Low Bank 1 Sensor 3
- P242D Exhaust Gas Temperature Sensor Circuit High Bank 1 Sensor 3
- P242E Exhaust Gas Temperature Sensor Circuit Intermittent or Erratic Bank 1 Sensor 3
- P242F Particulate Filter Restriction Ash Accumulation Bank 1
- P2430 AIR System Air Flow or Pressure Sensor Circuit Bank 1
- P2431 Secondary Air Injection System Air Flow/Pressure Sensor Circuit Range/Performance Bank 1
- P2432 Secondary Air Injection System Air Flow/Pressure Sensor Circuit Low Bank 1
- P2433 AIR System Air Flow or Pressure Sensor Circuit High Bank 1
- P2434 AIR System Air Flow or Pressure Sensor Circuit Intermittent or Erratic Bank 1
- P2435 AIR System Air Flow or Pressure Sensor Circuit Bank 2
- P2436 AIR System Air Flow or Pressure Sensor Circuit Range or Performance Bank 2
- P2437 AIR System Air Flow or Pressure Sensor Circuit Low Bank 2
- P2438 AIR System Air Flow or Pressure Sensor Circuit High Bank 2
- P2439 AIR System Air Flow or Pressure Sensor Circuit Intermittent or Erratic Bank 2
- P243A Particulate Filter Restriction Ash Accumulation Bank 2
- P243B Particulate Filter Restriction Forced Limited Power Bank 2
- P243C Particulate Filter Regeneration Frequency Bank 2
- P243D Particulate Filter Regeneration Duration Bank 2
- P243E Particulate Filter Regeneration Incomplete Bank 2
- P243F Particulate Filter Restriction Soot Accumulation Too High Bank 2
- P2440 Secondary Air Injection System Switching Valve Stuck Open (Bank 1)
- P2441 Secondary Air Injection System Switching Valve Stuck Closed (Bank 1)
- P2442 Secondary Air Injection System Switching Valve Stuck Open (Bank 2)
- P2443 Secondary Air Injection System Switching Valve Stuck Closed (Bank 2)
- P2444 Secondary Air Injection System Pump Stuck On Bank 1
- P2445 Secondary Air Injection System Pump Stuck Off Bank 1
- P2446 Secondary Air Injection System Pump Stuck On Bank 2
- P2447 Secondary Air Injection System Pump Stuck Off Bank 2
- P2448 AIR System High Air Flow Bank 1
- P2449 AIR System High Air Flow Bank 2
- P244A Diesel Particulate Filter Differential Pressure Too Low Bank 1
- P244B Diesel Particulate Filter Differential Pressure Too High Bank 1
- P244C Exhaust Temperature Too Low For Particulate Filter Regeneration Bank 1
- P244D Exhaust Temperature Too High For Particulate Filter Regeneration Bank 1
- P244E Exhaust Temperature Too Low For Particulate Filter Regeneration Bank 2
- P244F Exhaust Temperature Too High For Particulate Filter Regeneration Bank 2
- P2450 Evaporative Emission System Switching Valve Performance/Stuck Open
- P2451 EVAP System Switching Valve Stuck Closed
- P2452 Diesel Particulate Filter Pressure Sensor A Circuit
- P2453 Diesel Particulate Filter Pressure Sensor A Circuit Range/Performance
- P2454 Diesel Particulate Filter Pressure Sensor A Circuit Low
- P2455 Diesel Particulate Filter Pressure Sensor A Circuit High
- P2456 Diesel Particulate Filter Pressure Sensor A Circuit Intermittent/Erratic
- P2457 EGR Cooler Performance
- P2458 DPF Regeneration Duration
- P2459 Diesel Particulate Filter Regeneration Frequency
- P245A EGR Cooler Bypass Control Circuit Open Bank 1
- P245B EGR Cooler Bypass Control Circuit Range or Performance Bank 1
- P245C EGR Cooler Bypass Control Circuit Low Bank 1
- P245D EGR Cooler Bypass Control Circuit High Bank 1
- P245E Diesel Particulate Filter Pressure Sensor B Circuit
- P245F Diesel Particulate Filter Pressure Sensor B Circuit Range/Performance
- P2460 Diesel Particulate Filter Pressure Sensor B Circuit Low
- P2461 Particulate Filter Pressure Sensor B Circuit High
- P2462 Particulate Filter Pressure Sensor B Circuit Intermittent/Erratic
- P2463 Diesel Particulate Filter Restriction — Soot Accumulation
- P2464 Diesel Particulate Filter Differential Pressure Too Low Bank 2
- P2465 Diesel Particulate Filter Differential Pressure Too High Bank 2
- P2466 Exhaust Gas Temperature Sensor Circuit/Open Bank 2 Sensor 3
- P2467 Exhaust Gas Temperature Sensor Circuit Range or Performance Bank 2 Sensor 3
- P2468 Exhaust Gas Temperature Sensor Circuit Low Bank 2 Sensor 3
- P2469 Exhaust Gas Temperature Sensor Circuit High Bank 2 Sensor 3
- P246A Exhaust Gas Temperature Sensor Circuit Intermittent or Erratic Bank 2 Sensor 3
- P246B Vehicle Conditions Incorrect for Diesel Particulate Filter Regeneration
- P246C Diesel Particulate Filter Restriction - Forced Limited Power
- P246D Diesel Particulate Filter Pressure Sensor A/B Correlation
- P246E Exhaust Gas Temperature Sensor Circuit/Open Bank 1 Sensor 4
- P246F Exhaust Gas Temperature Sensor Circuit Range/Performance Bank 1 Sensor 4
- P2470 Exhaust Gas Temperature Sensor Circuit Low Bank 1 Sensor 4
- P2471 Exhaust Gas Temperature Sensor Circuit High Bank 1 Sensor 4
- P2472 Exhaust Gas Temperature Sensor Circuit Intermittent/Erratic Bank 1 Sensor 4
- P2473 Exhaust Gas Temperature Sensor Circuit/Open Bank 2 Sensor 4
- P2474 Exhaust Gas Temperature Sensor Circuit Range/Performance Bank 2 Sensor 4
- P2475 Exhaust Gas Temperature Sensor Circuit Low Bank 2 Sensor 4
- P2476 Exhaust Gas Temperature Sensor Circuit High Bank 2 Sensor 4
- P2477 Exhaust Gas Temperature Sensor Circuit Intermittent/Erratic Bank 2 Sensor 4
- P2478 Exhaust Gas Temperature Out of Range Bank 1 Sensor 1
- P2479 Exhaust Gas Temperature Out of Range Bank 1 Sensor 2
- P247A Exhaust Gas Temperature Out of Range Bank 1 Sensor 3
- P247B Exhaust Gas Temperature Out of Range Bank 1 Sensor 4
- P247C Exhaust Gas Temperature Out of Range Bank 2 Sensor 1
- P247D Exhaust Gas Temperature Out of Range Bank 2 Sensor 2
- P247E Exhaust Gas Temperature Out of Range Bank 2 Sensor 3
- P247F Exhaust Gas Temperature Out of Range Bank 2 Sensor 4
- P2480 Exhaust Gas Temperature Sensor Circuit/Open Bank 1 Sensor 5
- P2481 Exhaust Gas Temperature Sensor Circuit Low Bank 1 Sensor 5
- P2482 Exhaust Gas Temperature Sensor Circuit High Bank 1 Sensor 5
- P2483 Exhaust Gas Temperature Sensor Circuit Range or Performance Bank 1 Sensor 5
- P2484 Exhaust Gas Temperature Sensor Circuit Intermittent or Erratic Bank 1 Sensor 5
- P2485 Exhaust Gas Temperature Sensor Circuit/Open Bank 2 Sensor 5
- P2486 Exhaust Gas Temperature Sensor Circuit Low Bank 2 Sensor 5
- P2487 Exhaust Gas Temperature Sensor Circuit High Bank 2 Sensor 5
- P2488 Exhaust Gas Temperature Sensor Circuit Range or Performance Bank 2 Sensor 5
- P2489 Exhaust Gas Temperature Sensor Circuit Intermittent or Erratic Bank 2 Sensor 5
- P248A Reductant Heater A Sense Circuit Low
- P248B Reductant Heater A Sense Circuit High
- P248C Reductant Heater B Sense Circuit Low
- P248D Reductant Heater B Sense Circuit High
- P248E EGR Cooler Bypass Control Circuit Open Bank 2
- P248F EGR Cooler Bypass Control Circuit Range or Performance Bank 2
- P2490 EGR Cooler Bypass Control Circuit Low Bank 2
- P2491 EGR Cooler Bypass Control Circuit High Bank 2
- P2492 EGR Cooler Bypass Position Sensor Circuit Bank 1
- P2493 EGR Cooler Bypass Position Sensor Range or Performance Bank 1
- P2494 EGR Cooler Bypass Position Sensor Circuit Low Bank 1
- P2495 EGR Cooler Bypass Position Sensor Circuit High Bank 1
- P2496 EGR Cooler Bypass Position Sensor Circuit Intermittent or Erratic Bank 1
- P2497 EGR Cooler Bypass Position Sensor Circuit Bank 2
- P2498 EGR Cooler Bypass Position Sensor Range or Performance Bank 2
- P2499 EGR Cooler Bypass Position Sensor Circuit Low Bank 2
- P249A EGR Cooler Bypass Position Sensor Circuit High Bank 2
- P249B EGR Cooler Bypass Position Sensor Circuit Intermittent or Erratic Bank 2
- P249C Excessive Time To Enter Closed Loop Reductant Injection Control
- P249D Closed Loop Reductant Injection Control At Limit Flow Too Low
- P249E Closed Loop Reductant Injection Control At Limit Flow Too High
- P249F Excessive Time To Enter Closed Loop Particulate Filter Regeneration Control
- P24A0 Closed Loop Particulate Filter Regeneration Control At Limit Temperature Too Low
- P24A1 Closed Loop Particulate Filter Regeneration Control At Limit Temperature Too High
- P24A2 Particulate Filter Regeneration Incomplete Bank 1
- P24A3 Particulate Filter Restriction Soot Accumulation Bank 2
- P24A4 Particulate Filter Restriction Soot Accumulation Too High Bank 1
- P24A5 EGR Cooler Bypass Control Stuck Open Bank 1
- P24A6 EGR Cooler Bypass Control Stuck Open Bank 2
- P24A7 EGR Cooler Coolant Pump Control Circuit/Open
- P24A8 EGR Cooler Coolant Pump Performance
- P24A9 EGR Cooler Coolant Pump Control Circuit Low
- P24AA EGR Cooler Coolant Pump Control Circuit High
- P24AB EGR Cooler Coolant Pump Stuck On
- P24AC EGR Cooler Coolant Pump Feedback Circuit Low
- P24AD EGR Cooler Coolant Pump Feedback Circuit High
- P24AE Particulate Matter Sensor Circuit
- P24AF Particulate Matter Sensor Circuit Range or Performance
- P24B0 Particulate Matter Sensor Circuit Low
- P24B1 Particulate Matter Sensor Circuit High
- P24B2 Particulate Matter Sensor Circuit Intermittent
- P24B3 Particulate Matter Sensor Heater Control Circuit Open
- P24B4 Particulate Matter Sensor Heater Control Circuit Range or Performance
- P24B5 Particulate Matter Sensor Heater Control Circuit Low
- P24B6 Particulate Matter Sensor Heater Control Circuit High
- P24B7 Particulate Matter Sensor Heater Resistance
- P24B8 Evaporative Emission System Leak Detection Pump Pressure Sensor Circuit
- P24B9 Evaporative Emission System Leak Detection Pump Pressure Sensor Circuit Range/Performance
- P24BA Evaporative Emission System Leak Detection Pump Pressure Sensor Circuit Low
- P24BB Evaporative Emission System Leak Detection Pump Pressure Sensor Circuit High
- P24BC Evaporative Emission System Leak Detection Pump Pressure Sensor Circuit Intermittent/Erratic
- P24BD Evaporative Emission System Leak Detection Pump Switching Valve Control Circuit/Open
- P24BE Evaporative Emission System Leak Detection Pump Switching Valve Control Circuit Low
- P24BF Evaporative Emission System Leak Detection Pump Switching Valve Control Circuit High
- P24C0 Evaporative Emission System Leak Detection Pump Switching Valve Stuck On
- P24C1 Evaporative Emission System Leak Detection Pump Switching Valve Performance/Stuck Off
- P24C2 Exhaust Gas Temperature Measurement System Multiple Sensor Correlation Bank 1
- P24C3 Exhaust Gas Temperature Measurement System Multiple Sensor Correlation Bank 2
- P24C4 EGR Cooler Bypass Position Sensor Exceeded Learning Limit Bank 1
- P24C5 EGR Cooler Bypass Position Sensor Exceeded Learning Limit Bank 2
- P24C6 Particulate Matter Sensor Temperature Circuit
- P24C7 Particulate Matter Sensor Temperature Circuit Range or Performance
- P24C8 Particulate Matter Sensor Temperature Circuit Low
- P24C9 Particulate Matter Sensor Temperature Circuit High
- P24CA Particulate Matter Sensor Temperature Circuit Intermittent
- P24CB Reductant Tank Cap Switch Circuit
- P24CC Reductant Tank Cap Switch Circuit Range or Performance
- P24CD Reductant Tank Cap Switch Circuit Low
- P24CE Reductant Tank Cap Switch Circuit High
- P24CF Reductant Tank Cap Switch Circuit Intermittent or Erratic
- P24D0 Particulate Matter Sensor Supply Voltage Circuit Low
- P24D1 Particulate Matter Sensor Regeneration Incomplete
- P24D2 Reductant Heater A Sense Circuit
- P24D3 Reductant Heater B Sense Circuit
- P24D4 EGR Cooler Coolant Pump Feedback Circuit
- P24D5 Evaporative Emission System Pressure Sensor/Switch B Circuit
- P24D6 Evaporative Emission System Pressure Sensor/Switch B Circuit Range/Performance
- P24D7 Evaporative Emission System Pressure Sensor/Switch B Circuit Low
- P24D8 Evaporative Emission System Pressure Sensor/Switch B Circuit High
- P24D9 EVAP System Pressure Sensor or Switch B Circuit Intermittent
- P24DA Particulate Matter Sensor Exhaust Sample Error Bank 1
- P24DB Reductant Purge Control Valve B Circuit Open
- P24DC Reductant Purge Control Valve B Performance
- P24DD Reductant Purge Control Valve B Circuit Low
- P24DE Reductant Purge Control Valve B Circuit High
- P24DF Reductant Purge Control Valve B Stuck Open
- P24E0 Reductant Purge Control Valve B Stuck Closed
- P24E1 NH3 Sensor Circuit
- P24E2 NH3 Sensor Circuit Range or Performance
- P24E3 NH3 Sensor Circuit Low
- P24E4 NH3 Sensor Circuit High
- P24E5 NH3 Sensor Circuit Intermittent/Erratic
- P24E6 NH3 Sensor Heater Circuit/Open
- P24E7 NH3 Sensor Heater Circuit Low
- P24E8 NH3 Sensor Heater Circuit High
- P24E9 NH3 Sensor Heater Circuit Performance
- P24EA NH3 Sensor Supply Voltage Circuit
- P24EB NH3 Sensor Supply Voltage Circuit Low
- P24EC NH3 Sensor Supply Voltage Circuit High
- P24ED NH3 Sensor Calibration Memory
- P24EE NH3 Sensor Processor Performance
- P24EF Control Module Wake-up Circuit/Open
- P24F0 Control Module Wake-up Circuit Low
- P24F1 Control Module Wake-up Circuit High
- P24F2 EGR Temperature/Charge Air Cooler Temperature Correlation
- P24F3 Reductant Tank Temperature/Fuel Temperature Correlation
- P24F4 NOx Sensor Delayed Response - High to Low Bank 1 Sensor 1
- P24F5 NOx Sensor Delayed Response - High to Low Bank 1 Sensor 2
- P24F6 Exhaust Aftertreatment Fuel Air Purge Valve Stuck Open
- P24F7 Exhaust Aftertreatment Fuel Air Purge Valve Stuck Closed
- P24F8 Exhaust Aftertreatment Fuel Air Purge Valve Control Circuit
- P24F9 Exhaust Aftertreatment Fuel Air Purge Valve Control Circuit Range/Performance
- P24FA Exhaust Aftertreatment Fuel Air Purge Valve Control Circuit Low
- P24FB Exhaust Aftertreatment Fuel Air Purge Valve Control Circuit High
- P24FC Particulate Matter Sensor Heater Control Circuit Driver Current/Temperature Too High
- P24FD Particulate Filter A Incorrect
- P24FE SCR Catalyst Incorrect
- P24FF Reductant Temperature Too High