Hi all. Long while since I last posted. I have a (new to me) 2011 sterling eccles topaz fitted with LED road lights which I tow with a 2014 T32 nissan xtrail with 13 pin plug with dedicated wiring. The probem I have is that the trailer light on the dashboard is not flashing with the indicators on the caravan. On my old van which had 12n & 12S which connected to the car via a converter cable the trailer dash light flashed OK with caravan indicators. Has anyone any ideas what could be causing this and any remedies.