Thanks for your reply I already have the training manual & a mechanic with all the diagnostic equipment but I need to know the routing of the wiring & where the controller module is. I found the fuses & relay after extensive searching but I really need to speak to an expert.If my memory serves, what you have is an x290. Fiat changed policy and did not publish an eLearn for the x290. The best fit is eLearn for the x250, but this is a lengthy document. May I suggest that you browse the Downloads link at the top of the page, selecting Commercials, and then Ducato. I believe that there is also a Conformatic Training Manual available in there.
Thanks, I've found that one but it's the engine ECU & I'm looking for the gearbox oneAs I have previously stated I am not familiar with the x290. On the Ducato, the Engine Control Unit (ECU) is typically located on the LH inner wing near the air filter. On the x290 you will probably have to remove the LH headlamp for access.