He definitely had the kit for checking the **EAS** ECU? It is different to the standard ECU diagnostics kit which just read general info and will give no info on EAS faults. Most general garages don't have the kit to read info from the EAS. Was it a LR specialist, or just a general garage? I'd be surprised if a general garage bothered to invest in the kit for reading LR EAS ECU's (the leads and software don't come cheap!)
Matt
Matt