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How to Reset the Alarm on a Citroën C4?

Model: Citroen C4 MK 1 - Years: 2004, 2005, 2006, 2007, 2008, 2009, 2010
Part: Warning light – error code

See other generations:
Video tutorial

To reset the alarm on a Citroën C4, connect a diagnostic tool to the vehicle's control unit, which is located at the top left of the engine block. Once connected, select the car model and its corresponding version.

Follow the tutorial instructions to ensure the alarm is fully restored. After the reset procedure, verify that the reset was successful and that everything is functioning correctly.


Updated on 28 September 2026 by ScegliAuto


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by ScegliAuto

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