This Valeo ECU AFIL unit is an original used part for Citroën and Peugeot cars, designed for the lane departure warning system (Afil / Lane Departure Warning). Accurate product identification makes it easily traceable by code and ideal for professional auto mechanics and DIYers looking for a fully functional replacement for the original unit.

Technical information:
Manufacturer: Valeo
Model: ECU AFIL for Citroën / Peugeot cars
Product codes: 9660593880, 6590AR, 6590AQ
Other numbers: PSA CITROEN PEUGEOT 9660593880 6590AR 6590AQ

The unit is mainly used in Citroën C5 models (from about 2006) and related cars of the PSA concern, where it controls the function of the assistant for monitoring the departure from the driving lane. Thanks to the original design, compatibility with the car’s electrical installation and communication bus is ensured.

Installation recommendations:
– Before disassembling the old unit, always disconnect the battery (negative pole) and wait a few minutes for the system to discharge.
– Mount the unit in a dry, clean and non-oxidized holder, check the condition of the connectors and wiring (clean or repair damaged or corroded pins).
– Snap the connectors in place only after the unit is firmly seated in the holder, never bend them violently.
– After installation, in most cases it is necessary to carry out basic settings or coding using diagnostics (e.g. Lexia/PP2000/DiagBox) so that the unit communicates correctly with other car systems.
– During the test drive, verify the correct functioning of the AFIL system according to the indicator light on the instrument panel and the behavior of the car when crossing the lane.

The use of the original AFIL Valeo ECU with the indicated codes (9660593880, 6590AR, 6590AQ) increases the chance of trouble-free system operation and reduces the risk of error messages in the car’s control electronics.