P2463

Particulate Filter Restriction - Soot Accumulation Bank 1

Auxiliary emissions / diesel particulate filter Generic OBD-II Medium

What it means

P2463 means soot has built up in the diesel particulate filter beyond the allowed limit, restricting exhaust flow. It is usually caused by short-trip driving that never completes a regeneration, or by a fault that overloads the filter with soot. The engine can drop into reduced power to protect itself, so a regeneration should be run soon.

Medium

Can I keep driving? Drivable but the filter is clogging — the engine may drop into reduced power; get a regeneration done soon.

Real-world scan data

Seen in

1,581

scans in the past year

Found in

0.2%

of scans

0.5%

of scans that found faults

Appears alongside · share of P2463 scans

P24A4in 15.3% of scans

P246Cin 14.9% of scans

P244Bin 14.6% of scans

Figures reflect only diagnostic scans recorded through our own apps and tools. Cars are typically scanned because a symptom or warning light prompted it, so these counts describe our scan records — not the incidence of faults in any model, and not the quality, reliability, or safety of any vehicle. No comparison between manufacturers or models is implied. All trademarks belong to their respective owners; no affiliation or endorsement is implied.

Common symptoms

What you'll notice

Check-engine light on
Reduced power or limp mode
DPF / regeneration warning light
Poor fuel economy

Common causes

Most likely first

Too much short-trip or low-speed driving that prevents regenerationLikely
Failed or incomplete regeneration cyclesCommon
Injector or EGR faults producing excess sootCommon
Faulty DPF differential-pressure sensor reading a false restrictionLess often
DPF at the end of its service lifeLess often

How to diagnose & fix

Work through it in order

Take a sustained highway drive to trigger a regeneration cycle.
Scan for DPF pressure and EGT codes that explain why regen isn't completing.
Perform a forced regeneration with a capable scan tool.
Check the DPF differential-pressure sensor and hoses for accuracy.
Inspect injectors and EGR for problems adding soot; replace the DPF only if it won't clear.

FAQ

Quick answers

Is it safe to drive with P2463?+

For short trips, but a clogged filter can force reduced power and, if ignored, need replacement. Run a regeneration soon.

Can I just clear P2463?+

Clearing it won't remove the soot — it returns until the filter is regenerated or the cause is fixed.

Read & clear P2463 yourself

Scan your car, confirm the code, and clear it once it's fixed — with OBD DashX on your phone.

▶ Get it on Google Play

✓ Verified name — SAE J2012 / ISO 15031-6Guidance reviewed by OBD DashX