Fault codes › P2003

P2003

Diesel Particulate Filter Efficiency Below Threshold Bank 2

Auxiliary Emissions Control Medium severity Moderate repair
Free on OBD DashX

Want real-world data on P2003?

See which problems come with P2003, how often it shows up in other vehicles, and how to fix it — step by step.

  • Real-world fix data
  • How often it happens
  • Step-by-step repairs
See P2003 on OBD DashX No sign-up needed · available in 10 languages

iWhat P2003 means

  • Particulate trap efficiency lower than limits on bank 2

Log in to see the full breakdown

This is a manufacturer-specific code. Free CaRPM account, no card needed.

Symptoms Causes Related parts Solutions
Log in to read more
Free on OBD DashX

P2003 on OBD DashX

Real-world causes, how often this code shows up, and the fix — step by step.

Open P2003 No sign-up needed · available in 10 languages

Search fault codes

Scan your own car

Read and clear fault codes, live data and service resets with the CaRPM app.