If does not work, it may depend on your specific software version or vehicle year:

Drive safely, and keep your Peugeot’s software healthy.

Users in the Peugeot Forums and Facebook Groups have identified several codes used for specific functions: : Main entry code for newer IVI systems. 1111 : Often used for basic system info or GPS status. 1122 : Secondary diagnostic code for some NAC versions. 0000 : Default test code for certain limited functions. Features Available in Engineering Mode

Note: Type the code and press or the green checkmark to confirm. What Can You Do Inside Engineering Mode?

Try these codes in order:

Engineering Mode is a specialized diagnostic, maintenance, and debugging menu designed for technicians. It allows Peugeot engineers and specialized mechanics to troubleshoot infotainment system issues, update firmware, and configure system parameters without requiring external diagnostic tools. Checking firmware/software versions. Viewing system logs and diagnostic information.

To access the (also known as "Expert Mode" or "Spy Mode") on a Peugeot 2008, you typically use a specific button sequence and a numeric code. This hidden menu allows you to view technical diagnostic data, software versions, and internal system logs. 🔓 Accessing Engineering Mode