Volvo V40 CEM (Body Control Module) How to Remove Faulty Unit & Program (Clone) replacement + Refit 

Thanks for watching, VVDI doesn’t work on all boards, we only use it to read the EEPROM to gain access to the units PIN number, we then use other tools to clone the BCM, my advice is to first test fit a donor unit, make sure there is no brake light faults then send us the unit to us to be cloned properly.. or get the eBay programmer to put the donor files back into your donor unit, test fit it again & then if all ok send it to us to do it, for more info visit our website: ecuconnection.co.uk/product/volvo-v40-body-control-module-cem-module-fusebox-lear-programming-service/

There could be many reasons - Key fault, BCM fault, wiring or ECU.. on some models with a SID803/A ECU there is a common fault after a flat battery with data getting corrupted - if this is the case then we can help!

Oh dear!.. thanks for watching & for your comment.. as for your issue, I really can’t say what could be the issue, maybe you have had a random fuse blow at an inconvenient time! I assume by EMC you mean Engine Control Module (ECM) - there is no reason why unplugging & plugging in again should cause a problem - hopefully it is just a blown fuse, or possibly a bent pin on the ECM multiplug? Good luck! 🤞

Sorry, I’m going to need far more information! Please contact us via the website with your enquiry, thanks: www.ecuconnection.co.uk

Sorry, I really wouldn’t like to say what the fault may be here.. intermittent faults are always the hardest to track down…

Hi, thanks for watching! Sorry but without having the part number it’s not possible to give you a accurate price, please get the part number from the ECU & check on our website - www.ecuconnection.co.uk or call us with your part number, thanks

I would imagine you would need to replace the LEDs in the dash…

How can I get in touch with you? I have some questions because my volvo is badic edition so it is without reverse camers or P assistance. Display looks different and the steering wheel has no wheel button

Carefully with small screwdrivers & patience!

Thanks, we are based in Norwich (U.K.) we offer a postal service for component programming regularly throughout Europe but also have dispatched to the USA, Japan & Australia!

Right now, I'm back in Plymouth/Devon. Keep up the epic videos/good work.

@@IchibanMo thanks! I wish I had more time to make them!!

Hi & thanks for watching!.. no, there is no need to disconnect battery, just have the ignition off & key out of the ignition..

The first & 2nd tools (VVDI & O5) do not read the full data on some of these units & does not clone them correctly, although it does give us enough information to read the password, we can then access the full data with the 3rd tool, also this tool accesses the data via CANBUS, we can therefore verify the units power up correctly after programming so we can make sure the units haven’t ‘bricked’, thanks for watching!

@@JC-ECUConnection I know of the tools, can omit them from your comment if you so wish. Haven't had to do one before, just wondered. Thank you

@@MrAsadEp No probs!