The control module detected that the Injector 3 is jammed or locked. Documented for the Bosch MED 17.4.x engine ECU (EP6 THP family) on Peugeot applications; the same PSA control units are also fitted to Citroën models.
TuningBot DTC Database · v4.37.15
P12A7 PSA - Diagnostic Trouble Code (3 interpretations)
Manufacturer-specific interpretation for PSA. All interpretations of P12A7
What P12A7 means
The control module detected that the No. 3 cylinder 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 the fault condition "Fuel injector wear" for the Correction of injector flow rate cylinder 3. Documented for the Siemens SID 803 injection ECU (DW10BTED4 2.0 HDi) on Peugeot applications; the same PSA control units are also fitted to Citroën models.
Related and nearby codes
How to read P12A7
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 P12A7
What does P12A7 mean?
Diagnostic Trouble Code (3 interpretations). The control module detected that the Injector 3 is jammed or locked. Documented for the Bosch MED 17.4.x engine ECU (EP6 THP family) on Peugeot applications; the same PSA control units are also fitted to Citroën models.
Is P12A7 generic or manufacturer-specific?
P12A7 is a manufacturer-specific code. In this database it is documented for: PSA. The same number can mean something different on other brands.
Can TuningBot remove P12A7 at file level?
If the fault logic lives in the ECU calibration, yes: our DTC Removal file service disables the specific fault entry. Checksum correction is not included: it is a separate, optional service. 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: Diagnostic Strategy and DTC Logic
