Essentially, the car's central computer (BSI) detects that a circuit that should only have power when the ignition is "on" is receiving power unexpectedly, or there is an internal relay failure. 🔍 Common Symptoms When this fault is active, you may experience:
(Invoking related search term suggestions.) a9b7 peugeot
Unlike older cars where a radio was just a speaker amplifier, the A9B7 screen is a slave to the . The BSI acts as the central computer. If the A9B7 fails, the BSI continues to function. This means: Essentially, the car's central computer (BSI) detects that
A faulty or sticking internal relay within the engine fuse box (PSF1/BM34). Wiring/Harness Issues: If the A9B7 fails, the BSI continues to function
If the code A9B7 returns immediately after clearing, the hardware fault is still present. 💡 Quick Reset Options
: Since BSI issues can be complex and affect multiple systems, using a professional tool like Service My Car