24-01-2013, 11:41 AM
You need the security code so you can reprogram a key to match a BSI/ECU combo that come without a key, otherwise you won't disable the immo and start the car.
As per numbers, hardware numbers ideally need to match.
Quite a lot you can get away with weird combos of all sorts and cars still work, but then other times you can't. If you want 100% good result all you need is same HW number ECU, BSI and matching key trio... simple as that really.
But since your ECU works again, you don't need to worry
Dave
As per numbers, hardware numbers ideally need to match.
Quite a lot you can get away with weird combos of all sorts and cars still work, but then other times you can't. If you want 100% good result all you need is same HW number ECU, BSI and matching key trio... simple as that really.
But since your ECU works again, you don't need to worry
Dave