The control module detected a fault associated with the Pressure Of Diesel Particulate Filter Implausible To Atmospheric Pressure Or Boost Pressure circuit or function; the stored code identifies the affected component rather than a single failure mode. This is the manufacturer-specific definition used by BMW.
TuningBot DTC Database · v4.37.14
P14A3 Diagnostic Trouble Code (3 interpretations)
3 manufacturer-specific interpretations across 2 manufacturers in the TuningBot DTC database.
BMW
1 interpretation
PSA
2 interpretationsThe control module detected that the EGR exchanger bypass is jammed or locked. Documented for the Continental SID 807 injection ECU (DV6C 1.6 HDi) on Peugeot applications; the same PSA control units are also fitted to Citroën models.
The control module detected that the EGR exchanger by-pass is jammed or locked. Documented for the Delphi DCM 3.5 injection ECU (DW10C 2.0 HDi) on Peugeot applications; the same PSA control units are also fitted to Citroën models.
Related and nearby codes
How to read P14A3
Powertrain: engine, transmission and driveline systems.
Manufacturer-defined range: the meaning can differ between brands.
Specific fault index within the subsystem.
Frequently asked questions about P14A3
What does P14A3 mean?
Diagnostic Trouble Code (3 interpretations). The control module detected a fault associated with the Pressure Of Diesel Particulate Filter Implausible To Atmospheric Pressure Or Boost Pressure circuit or function; the stored code identifies the affected component rather than a single failure mode. This is the manufacturer-specific definition used by BMW.
Is P14A3 generic or manufacturer-specific?
P14A3 is a manufacturer-specific code. In this database it is documented for: BMW, PSA. The same number can mean something different on other brands.
Can TuningBot remove P14A3 at file level?
If the fault logic lives in the ECU calibration, yes: our DTC Removal file service disables the specific fault entry and, where the ECU needs it, corrects the checksum too. Not sure whether your case qualifies? Request a free assessment and our engineers will check your ECU file.
Other file services
Understand the system behind this code: DPF System
