Renault Clio III 2010 onwards

Just a bit of insight for anyone who has not come across this problem...

A good few weeks back I was asked to remove an electric power steering column that I was told had failed. The power steering assistance was not present. I removed the steering column. A secondhand ECU/motor was aquired and I fitted them to the original column. Checking the part number of the old ECU against the replacement ECU, both numbers were the same. After completion the engine started okay several times. One morning the ignition key installed and turned the engine would not start. A communication fault code between the power steering ECU and main ECU had developed somehow? After checking the fuses and wiring connections, which I knew would not be at fault, reading online subscription autodata brought to my attention the immobiliser. Something I'd not thought about and had not changed. No communication was possible between these two components, but why! The engine started okay several times before it failed!

It's a simple fix...

I didn't think the Snap On scanner would have had the facility to reprogram immobilisers, but on this occassion the steering column ECU could be reprogrammed to the engine immobiliser. Enter the app for immobiliser and enter the full vin number and press okay. Follow the onscreen instructions and you should be good to go. 

Just can't bring myself to understand why the engine started several times over a couple of days and then just stopped starting!