MANUFACTURER REFERENCE
Generic OBD-II code references — Page 57.
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Generic OBD-II
P24CD
Reductant Tank Cap Switch Circuit Low
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Generic OBD-II
P24CE
Reductant Tank Cap Switch Circuit High
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Generic OBD-II
P24CF
Reductant Tank Cap Switch Circuit Intermittent/Erratic
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Generic OBD-II
P24D0
Particulate Matter Sensor Supply Voltage Circuit Low
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Generic OBD-II
P24D1
Particulate Matter Sensor Regeneration Incomplete
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Generic OBD-II
P24D2
Reductant Heater A Sense Circuit
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Generic OBD-II
P24D3
Reductant Heater B Sense Circuit
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Generic OBD-II
P24D4
EGR Cooler Coolant Pump Feedback Circuit
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Generic OBD-II
P24D5
EVAP System Pressure Sensor/Switch B Circuit
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Generic OBD-II
P24D6
EVAP System Pressure Sensor/Switch B Circuit Range/Performance
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Generic OBD-II
P24D7
EVAP System Pressure Sensor/Switch B Circuit Low
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Generic OBD-II
P24D8
EVAP System Pressure Sensor/Switch B Circuit High
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Generic OBD-II
P24D9
EVAP System Pressure Sensor/Switch B Circuit Intermittent
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Generic OBD-II
P24DA
Particulate Matter Sensor Exhaust Sample Error Bank 1
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Generic OBD-II
P24DB
Reductant Purge Control Valve B Circuit /Open
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Generic OBD-II
P24DC
Reductant Purge Control Valve B Performance
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Generic OBD-II
P24DD
Reductant Purge Control Valve B Circuit Low
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Generic OBD-II
P24DE
Reductant Purge Control Valve B Circuit High
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Generic OBD-II
P24DF
Reductant Purge Control Valve B Stuck Open
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Generic OBD-II
P24E0
Reductant Purge Control Valve B Stuck Closed
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Generic OBD-II
P24E1
NH3 Sensor Circuit
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Generic OBD-II
P24E2
NH3 Sensor Circuit Range/Performance
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Generic OBD-II
P24E3
NH3 Sensor Circuit Low
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Generic OBD-II
P24E4
NH3 Sensor Circuit High
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Generic OBD-II
P24E5
NH3 Sensor Circuit Intermittent/Erratic
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Generic OBD-II
P24E6
NH3 Sensor Heater Circuit/Open
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Generic OBD-II
P24E7
NH3 Sensor Heater Circuit Low
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Generic OBD-II
P24E8
NH3 Sensor Heater Circuit High
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Generic OBD-II
P24E9
NH3 Sensor Heater Circuit Performance
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Generic OBD-II
P24EA
NH3 Sensor Supply Voltage Circuit
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Generic OBD-II
P24EB
NH3 Sensor Supply Voltage Circuit Low
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Generic OBD-II
P24EC
NH3 Sensor Supply Voltage Circuit High
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Generic OBD-II
P24ED
NH3 Sensor Calibration Memory
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Generic OBD-II
P24EE
NH3 Sensor Processor Performance
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Generic OBD-II
P24EF
Control Module Wake-up Circuit/Open
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Generic OBD-II
P24F0
Control Module Wake-up Circuit Low
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Generic OBD-II
P24F1
Control Module Wake-up Circuit High
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Generic OBD-II
P24F2
EGR Temperature/Charge Air Cooler Temperature Correlation
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Generic OBD-II
P24F3
Reductant Tank Temperature/Fuel Temperature Correlation
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Generic OBD-II
P24F4
NOx Sensor Delayed Response - High to Low Bank 1 Sensor 1
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Generic OBD-II
P24F5
NOx Sensor Delayed Response - High to Low Bank 1 Sensor 2
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Generic OBD-II
P24F6
Exhaust Aftertreatment Fuel Air Purge Valve Stuck Open
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Generic OBD-II
P24F7
Exhaust Aftertreatment Fuel Air Purge Valve Stuck Closed
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Generic OBD-II
P24F8
Exhaust Aftertreatment Fuel Air Purge Valve Control Circuit
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Generic OBD-II
P24F9
Exhaust Aftertreatment Fuel Air Purge Valve Control Circuit Range/Performance
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Generic OBD-II
P24FA
Exhaust Aftertreatment Fuel Air Purge Valve Control Circuit Low
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Generic OBD-II
P24FB
Exhaust Aftertreatment Fuel Air Purge Valve Control Circuit High
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Generic OBD-II
P24FC
Particulate Matter Sensor Heater Control Circuit Driver Current/Temperature Too High
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Generic OBD-II
P24FD
Particulate Filter A Incorrect
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Generic OBD-II
P24FE
SCR Catalyst Incorrect
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Generic OBD-II
P24FF
Reductant Temperature Too High
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Generic OBD-II
P2500
Generator Lamp/L-Terminal Circuit Low
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Generic OBD-II
P2501
Generator Lamp/L-Terminal Circuit High
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Generic OBD-II
P2502
Charging System Voltage
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Generic OBD-II
P2503
Charging System Voltage Low
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Generic OBD-II
P2504
Charging System Voltage High
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Generic OBD-II
P2505
ECM/PCM Power Input Signal
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Generic OBD-II
P2506
ECM/PCM Power Input Signal Range/Performance
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Generic OBD-II
P2507
ECM/PCM Power Input Signal Low
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Generic OBD-II
P2508
ECM/PCM Power Input Signal High
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Generic OBD-II
P2509
ECM/PCM Power Input Signal Intermittent
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Generic OBD-II
P250A
Engine Oil Level Sensor Circuit
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Generic OBD-II
P250B
Engine Oil Level Sensor Circuit Range/Performance
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Generic OBD-II
P250C
Engine Oil Level Sensor Circuit Low
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Generic OBD-II
P250D
Engine Oil Level Sensor Circuit High
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Generic OBD-II
P250E
Engine Oil Level Sensor Circuit Intermittent/Erratic
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Generic OBD-II
P250F
Engine Oil Level Too Low
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Generic OBD-II
P2510
ECM/PCM Power Relay Sense Circuit Range/Performance
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Generic OBD-II
P2511
ECM/PCM Power Relay Sense Circuit Intermittent
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Generic OBD-II
P2512
Event Data Recorder Request Circuit/ Open
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Generic OBD-II
P2513
Event Data Recorder Request Circuit Low
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Generic OBD-II
P2514
Event Data Recorder Request Circuit High
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Generic OBD-II
P2515
A/C Refrigerant Pressure Sensor B Circuit
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Generic OBD-II
P2516
A/C Refrigerant Pressure Sensor B Circuit Range/Performance
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Generic OBD-II
P2517
A/C Refrigerant Pressure Sensor B Circuit Low
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Generic OBD-II
P2518
A/C Refrigerant Pressure Sensor B Circuit High
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Generic OBD-II
P2519
A/C Request A Circuit
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Generic OBD-II
P251A
PTO Enable Switch Circuit/Open
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Generic OBD-II
P251B
PTO Enable Switch Circuit Low
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Generic OBD-II
P251C
PTO Enable Switch Circuit High
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Generic OBD-II
P251D
PTO Engine Shutdown Circuit/Open
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Generic OBD-II
P251E
PTO Engine Shutdown Circuit Low
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Generic OBD-II
P251F
PTO Engine Shutdown Circuit High
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Generic OBD-II
P2520
A/C Request A Circuit Low
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Generic OBD-II
P2521
A/C Request A Circuit High
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Generic OBD-II
P2522
A/C Request B Circuit
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Generic OBD-II
P2523
A/C Request B Circuit Low
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Generic OBD-II
P2524
A/C Request B Circuit High
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Generic OBD-II
P2525
Vacuum Reservoir Pressure Sensor Circuit
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Generic OBD-II
P2526
Vacuum Reservoir Pressure Sensor Circuit Range/Performance
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Generic OBD-II
P2527
Vacuum Reservoir Pressure Sensor Circuit Low
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Generic OBD-II
P2528
Vacuum Reservoir Pressure Sensor Circuit High
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Generic OBD-II
P2529
Vacuum Reservoir Pressure Sensor Circuit Intermittent
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Generic OBD-II
P252A
Engine Oil Quality Sensor Circuit
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Generic OBD-II
P252B
Engine Oil Quality Sensor Circuit Range/Performance
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Generic OBD-II
P252C
Engine Oil Quality Sensor Circuit Low
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Generic OBD-II
P252D
Engine Oil Quality Sensor Circuit High
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Generic OBD-II
P252E
Engine Oil Quality Sensor Circuit Intermittent/Erratic
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Generic OBD-II
P252F
Engine Oil Level Too High
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Generic OBD-II
P2530
Ignition Switch Run Position Circuit
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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.