P1A9F PSA - Voltage retaining device: Open circuit or short circuit to earth of the supply line or of the earth between the voltage retaining device and the power storage battery

Voltage retaining device: Open circuit or short circuit to earth of the supply line or of the earth between the voltage retaining device and the power storage battery. The cited PSA workshop reference documents P1A9F as "Voltage retaining device: Open circuit or short circuit to earth of the supply line or of the earth between the voltage retaining device and the power storage battery" 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.

P1A9F is a manufacturer-specific code. In this database it is documented for: PSA. The same number can mean something different on other brands.

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.