Question 1

What does the B2AAA fault code mean?

Accepted Answer

B2AAA is a generic body-system fault code pointing to a communication or internal error inside the Body Control Module (BCM). The BCM is the electronic brain that manages lights, wipers, windows, central locking, and dozens of other comfort and safety functions. When it logs B2AAA, something has gone wrong with how it processes or transmits data.

Question 2

Can I drive with a B2AAA fault code showing?

Accepted Answer

Short trips are usually possible, but the fault can cause unpredictable behaviour — wipers activating alone, windows failing to close, or central locking not securing the car. We recommend booking a diagnostic appointment as soon as convenient and avoiding long or overnight trips until the root cause is confirmed.

Question 3

How much does B2AAA BCM diagnosis and repair cost in North London?

Accepted Answer

Our diagnostic fee covers a full read of all modules, live-data analysis and a written report of findings. BCM repair or cloning costs depend on the vehicle make and whether a new, remanufactured or cloned unit is appropriate. We give a fixed price before any work begins — no surprise bills.

Question 4

Do you replace the BCM or can it be repaired or cloned?

Accepted Answer

Often the BCM can be repaired at component level or cloned from your existing unit, which is significantly cheaper than a dealer-supplied replacement and avoids lengthy programming procedures. Our technicians assess which route is most cost-effective and reliable for your specific vehicle.

Question 5

Do you cover my area of North London?

Accepted Answer

MnF Motors is based in Edmonton N18 and serves the whole of North London and surrounding areas within roughly 20 miles — including Enfield, Tottenham, Walthamstow, Haringey, Barnet, Waltham Cross and beyond. Nationwide service is available by arrangement for specialist mechatronic and engine work.