Yes, rescued three 70A fuses. Plugged one in and now have 9.5V (with 12.5V across the battery) at the heavy red wire at the module. Seems strange that it is only 9.5 so I changed the fuse but still got the same 9.5V. But still no output from the module to the trailer lights. Having said that, I am relying on my trailer for diagnosis. But it worked perfectly with the module etc. in the other car. I tried disconnecting/reconnecting the battery with all precautions but still no trailer lights. Progress, but not success.
Hugh
Hugh