The control module detected a short circuit to ground in the Voltage retaining device circuit. 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.
TuningBot DTC Database · v4.37.15
P1AA1 Voltage retaining device : Supply open circuit or short circuit to earth
1 manufacturer-specific interpretation across 1 manufacturer in the TuningBot DTC database.
PSA
1 interpretationRelated and nearby codes
How to read P1AA1
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 P1AA1
What does P1AA1 mean?
Voltage retaining device : Supply open circuit or short circuit to earth. The control module detected a short circuit to ground in the Voltage retaining device circuit. 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.
Is P1AA1 generic or manufacturer-specific?
P1AA1 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 P1AA1 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
