: This is a standard "soft reset" for Peugeot/Citroën electronics. You can find specific procedures for this on community resources like the Peugeot Forums or via video tutorials like the BSI Reset Procedure.
When this code is active, the vehicle typically exhibits security-related failures, including: No-Start Condition
The engine may fail to crank or start because the immobilizer is active.
The issue can range from simple battery problems to hardware failures: Weak Key Fob Battery
Let’s cut through the technical jargon. In plain English, translates to: "Air Quality Sensor - Circuit Malfunction" or sometimes listed as "Ambient Air Quality Sensor / Pollen Filter Sensor Signal Incorrect."
