P24xx codes
256 codes in this group. The last column counts owner complaints that mention the code.
| Code | Meaning | Owner reports |
|---|---|---|
| P2400 | EVAP System Leak Detection Pump Control Circuit/Open | |
| P2401 | EVAP System Leak Detection Pump Control Circuit Low | |
| P2402 | EVAP System Leak Detection Pump Control Circuit High | 5 |
| P2403 | EVAP System Leak Detection Pump Sense Circuit/Open | |
| P2404 | EVAP System 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/Switch Circuit Range/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/Switch Circuit Intermittent/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 | 1 |
| 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 | 4 |
| P2422 | EVAP System Vent Valve Stuck Closed | 1 |
| P2423 | HC Adsorption Catalyst Efficiency Below Threshold (Bank 1) | |
| P2424 | HC Adsorption Catalyst Efficiency Below Threshold (Bank 2) | |
| P2425 | EGR Cooling Valve Control Circuit/Open | |
| P2426 | EGR Cooling Valve Control Circuit Low | |
| P2427 | EGR 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/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/Erratic (Bank 1 Sensor 3) | |
| P242F | Particulate Filter Restriction - Ash Accumulation (Bank 1) | |
| P2430 | AIR System Air Flow/Pressure Sensor Circuit (Bank 1) | |
| P2431 | AIR System Air Flow/Pressure Sensor Circuit Range/Performance (Bank 1) | |
| P2432 | AIR System Air Flow/Pressure Sensor Circuit Low (Bank 1) | 4 |
| P2433 | AIR System Air Flow/Pressure Sensor Circuit High (Bank 1) | |
| P2434 | AIR System Air Flow/Pressure Sensor Circuit Intermittent/Erratic (Bank 1) | |
| P2435 | AIR System Air Flow/Pressure Sensor Circuit (Bank 2) | |
| P2436 | AIR System Air Flow/Pressure Sensor Circuit Range/Performance (Bank 2) | |
| P2437 | AIR System Air Flow/Pressure Sensor Circuit Low (Bank 2) | |
| P2438 | AIR System Air Flow/Pressure Sensor Circuit High (Bank 2) | |
| P2439 | AIR System Air Flow/Pressure Sensor Circuit Intermittent/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 | AIR System Switching Valve Stuck Open (Bank 1) | 2 |
| P2441 | AIR System Switching Valve Stuck Closed (Bank 1) | |
| P2442 | AIR System Switching Valve Stuck Open (Bank 2) | 1 |
| P2443 | AIR System Switching Valve Stuck Closed (Bank 2) | 1 |
| P2444 | AIR System Pump Stuck On (Bank 1) | |
| P2445 | AIR System Pump Stuck Off (Bank 1) | 1 |
| P2446 | AIR System Pump Stuck On (Bank 2) | |
| P2447 | AIR 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 | EVAP 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 A Efficiency Below Threshold | 1 |
| P2458 | Diesel Particulate Filter Regeneration Duration | |
| P2459 | Diesel Particulate Filter Regeneration Frequency | |
| P245A | EGR Cooler Bypass Control Circuit/Open (Bank 1) | |
| P245B | EGR Cooler Bypass Control Circuit Range/Performance (Bank 1) | |
| P245C | EGR Cooler Bypass Control Circuit Low (Bank 1) | |
| P245D | EGR Cooler Bypass Control Circuit High (Bank 1) | |
| P245E | Particulate Filter Pressure Sensor B Circuit | |
| P245F | Particulate Filter Pressure Sensor B Circuit Range/Performance | |
| P2460 | 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 (Bank 1) | |
| 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 (Bank 2 Sensor 3) | |
| P2467 | Exhaust Gas Temperature Sensor Circuit Range/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/Erratic (Bank 2 Sensor 3) | |
| P246B | Vehicle Conditions Incorrect for Particulate Filter Regeneration | |
| P246C | Particulate Filter Restriction - Forced Limited Power (Bank 1) | |
| P246D | Particulate Filter Pressure Sensor A/B Correlation | |
| P246E | Exhaust Gas Temperature Sensor Circuit (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 (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/Performance (Bank 1 Sensor 5) | |
| P2484 | Exhaust Gas Temperature Sensor Circuit Intermittent/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/Performance (Bank 2 Sensor 5) | |
| P2489 | Exhaust Gas Temperature Sensor Circuit Intermittent/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/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/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/Erratic (Bank 1) | |
| P2497 | EGR Cooler Bypass Position Sensor Circuit (Bank 2) | |
| P2498 | EGR Cooler Bypass Position Sensor Range/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/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/Stuck Off | |
| 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/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/Performance | |
| P24B5 | Particulate Matter Sensor Heater Control Circuit Low | |
| P24B6 | Particulate Matter Sensor Heater Control Circuit High | |
| P24B7 | Particulate Matter Sensor Heater Resistance | |
| P24B8 | EVAP System Leak Detection Pump Pressure Sensor Circuit | |
| P24B9 | EVAP System Leak Detection Pump Pressure Sensor Circuit Range/Performance | |
| P24BA | EVAP System Leak Detection Pump Pressure Sensor Circuit Low | |
| P24BB | EVAP System Leak Detection Pump Pressure Sensor Circuit High | |
| P24BC | EVAP System Leak Detection Pump Pressure Sensor Circuit Intermittent | |
| P24BD | EVAP System Leak Detection Pump Switching Valve Control Circuit/Open | |
| P24BE | EVAP System Leak Detection Pump Switching Valve Control Circuit Low | |
| P24BF | EVAP System Leak Detection Pump Switching Valve Control Circuit High | |
| P24C0 | EVAP System Leak Detection Pump Switching Valve Stuck On | |
| P24C1 | EVAP 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/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/Performance | |
| P24CD | Reductant Tank Cap Switch Circuit Low | |
| P24CE | Reductant Tank Cap Switch Circuit High | |
| P24CF | Reductant Tank Cap Switch Circuit Intermittent/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 | EVAP System Pressure Sensor/Switch B Circuit | |
| P24D6 | EVAP System Pressure Sensor/Switch B Circuit Range/Performance | 1 |
| P24D7 | EVAP System Pressure Sensor/Switch B Circuit Low | |
| P24D8 | EVAP System Pressure Sensor/Switch B Circuit High | |
| P24D9 | EVAP System Pressure Sensor/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/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 |