Hi, we have a 307 on an 03 plate, HDi Rapier. On one of the passenger doors, the lock unit is not operating, leaving the door unlocked. Upon locking the car, the indicators are flashing about 11 times - but I do not know if this is an error code, and what it means. We have dismantled the door, changed the lock unit, but this has not worked. It is near-side, and know that the earth is common in the Passenger Footwell, inspected that, it is very good, and very dry. All other doors and tailgate lock OK. All connectors to the BSI appear good.

Not wanting to spend £120 on a replacement BSI yet, is there any advice anyone can provide please?

Thanks