What does code P2DCD mean?

Q: What does code P2DCD mean?

Particulate Filter B Incorrect. P2DCD indicates that the powertrain control module has detected an incorrect performance from particulate filter B, which is the second filter in a dual-filter exhaust after-treatment system on some diesel vehicles. The computer compares the filter's pressure differential and temperature signals against expected values and flags the filter as not functioning within its designed range.

DTC codes / P2Dxx · Hybrid propulsion / P2DCD

P2DCDParticulate Filter B Incorrect

P2DCD indicates that the powertrain control module has detected an incorrect performance from particulate filter B, which is the second filter in a dual-filter exhaust after-treatment system on some diesel vehicles. The computer compares the filter's pressure differential and temperature signals against expected values and flags the filter as not functioning within its designed range.

SystemPowertrain

Code typeGeneric (all makes)

SeverityMedium

Fix difficultyProfessional

AreaHybrid propulsion

Guidance is general and written for all OBD-II vehicles. Exact tests and values vary by model, so confirm the fault before replacing parts.