DPF / Particulate Filter DTC Codes

All OBD-II diagnostic trouble codes related to the diesel particulate filter (DPF), gasoline particulate filter (GPF), and soot management — with suppression context for off-road tuning.

91 codes in this system Commonly suppressible (off-road)

About DPF / Particulate Filter codes

DPF codes indicate the diesel particulate filter is saturated, regenerating poorly, or returning sensor faults. After mechanical DPF removal (off-road / motorsport use only), these codes need to be suppressed at the ECU calibration level to prevent re-triggering and limp mode. Softechpro automates this across 1,400+ supported ECUs.

All 91 codes in DPF / Particulate Filter

P1401

DPFE Circuit High Input

P2002

Particulate Trap Efficiency Below Threshold Bank1

P2003

Particulate Trap Efficiency Below Threshold Bank2

P200C

Particulate Filter Over Temperature Bank 1

P200D

Particulate Filter Over Temperature Bank 2

P214B

SCR NOx Catalyst Inlet Temperature Too High During Particulate Filter Regeneration

P214D

SCR NOx Catalyst Outlet Temperature Too High During Particulate Filter Regeneration

P226D

Particulate Filter Deteriorated/Missing Substrate Bank 1

P226E

Particulate Filter Deteriorated/Missing Substrate Bank 2

P242F

Particulate Filter Restriction - Ash Accumulation Bank 1

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

P244A

Particulate Filter Differential Pressure Too Low Bank 1

P244B

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

P2452

Particulate Filter Pressure Sensor A Circuit

P2453

Particulate Matter Trap Differential Pressure Sensor Signal Performance

P2454

Particulate Filter Pressure Sensor A Circuit Low

P2455

DPF Differential Pressure Sensor Short to Voltage

P2456

Particulate Filter Pressure Sensor A Circuit Intermittent/Erratic

P2458

Particulate Filter Regeneration Duration Bank 1

P2459

Particulate Filter Regeneration Frequency 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

Particulate Filter Restriction - Soot Accumulation Bank 1

P2464

Particulate Filter Differential Pressure Too Low Bank 2

P2465

Particulate Filter Differential Pressure Too High Bank 2

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

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

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

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

P24D0

Particulate Matter Sensor Supply Voltage Circuit Low

P24D1

Particulate Matter Sensor Regeneration Incomplete

P24DA

Particulate Matter Sensor Exhaust Sample Error Bank 1

P24FC

Particulate Matter Sensor Heater Control Circuit Driver Current/Temperature Too High

P24FD

Particulate Filter A Incorrect

P260E

Particulate Filter Regeneration Lamp Control Circuit

P2AB0

Particulate Matter Sensor Processor Performance

P2B9B

Vehicle Conditions Incorrect for Particulate Matter Sensor Regeneration

P2BA5

Particulate Filter Feedgas Performance

P2CA4

Particulate Filter Pressure Sensor Signals Swapped A/B

P2CE5

Particulate Filter Pressure Sensor C Circuit

P2CE6

Particulate Filter Pressure Sensor C Circuit Range/Performance

P2CE7

Particulate Filter Pressure Sensor C Circuit Low

P2CE8

Particulate Filter Pressure Sensor C Circuit High

P2CE9

Particulate Filter Pressure Sensor C Circuit Intermittent/Erratic

P2CEA

Particulate Filter Pressure Sensor D Circuit

P2CEB

Particulate Filter Pressure Sensor D Circuit Range/Performance

P2CEC

Particulate Filter Pressure Sensor D Circuit Low

P2CED

Particulate Filter Pressure Sensor D Circuit High

P2CEE

Particulate Filter Pressure Sensor D Circuit Intermittent/Erratic

P2DCD

Particulate Filter B Incorrect

U01B1

Lost Communication With Particulate Matter Sensor B

U02A3

Lost Communication With Particulate Matter Sensor

U04A4

Invalid Data Received From Particulate Matter Sensor A

U04B2

Invalid Data Received From Particulate Matter Sensor B

U05A4

Particulate Matter Sensor Received Invalid Data From ECM/PCM

U0601

Lost Communication With Particulate Filter Pressure Sensor A

U0602

Lost Communication With Particulate Filter Pressure Sensor B

U0696

Lost Communication With Particulate Filter Pressure Sensor C

U0697

Lost Communication With Particulate Filter Pressure Sensor D

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