Code result
P2DCD
Particulate Filter B Incorrect
High severity
What it means
The ECM detects that the installed particulate filter B does not match the expected type or specification. Wrong replacement part or substrate damage.
Is it safe to drive?
No — stop driving
This code can put the vehicle into limp or reduced-power mode. Avoid extended driving and have the vehicle diagnosed promptly.
Most likely causes
Wrong DPF type installed
highOne of the most commonly reported causes for this code — check this first.
Substrate damaged or missing
mediumA plausible cause — test and verify before replacing parts.
Related help
Get the full diagnosis
Add your vehicle and see step-by-step repair help, recalls, and TSBs in Wrenchify.
Diagnose P2DCD freeNo credit card required