A9b7 Peugeot !free!

The engine bay fuse box containing heavy-duty relays.

Follow the Peugeot "3-minute" rule (shut doors, wait for BSI to sleep, disconnect battery, wait, reconnect, and wait again before turning ignition) to allow the modules to reboot correctly.

If the code A9B7 returns immediately after clearing, the hardware fault is still present. 💡 Quick Reset Options a9b7 peugeot

To provide more specific advice, please tell me: What is the exact Peugeot model and year (e.g., 2016 308)?

Modern Peugeots are essentially computers on wheels. Sometimes they just need a reboot. The engine bay fuse box containing heavy-duty relays

If the internal relay is shorted, you will need to buy a replacement under-hood fuse box. Ensure the replacement box matches the designation (e.g., L04, L11, B5) of your original unit. Thankfully, unlike the interior BSI, the engine-bay BSM is generally a "plug-and-play" module that does not require VIN re-coding.

If you see A9B7 and A9B8 appear together, the issue is highly likely to be an electrical feed problem affecting multiple modules simultaneously. 💡 Quick Reset Options To provide more specific

Diagnostic scanners may show a "No Communication" error when trying to access the Engine Control Unit (ECU).

If you read a consistent with the key completely removed from the car, a short to positive is confirmed on that line. Step 5: Isolate the Fault

Owning a Peugeot is often about appreciating the blend of French style and engineering. Understanding these internal codes empowers owners in several ways: