The 12 pin caravan plug wiring diagram shows the different pins and their corresponding colors. This information is crucial for correctly connecting the caravan's electrical system to the towing vehicle.. (Grey): Fridge connection. Pin 10 (Purple). Connect the 12 pin plug to the corresponding socket on the towing vehicle and check if.. 12 Fridge Sensor Wire Pink ECA4 1.85 This is an ignition signal that activates the 12volt circuit in the fridge automatically. For the fridge to operate on 12-volt this pin needs to have 12-volt power. This needs to be sourced from the ignition. - Grey Anderson Plug - 8mm or above Your caravan will be fitted with a Grey Anderson plug, this
General Instructions for Wiring 12S Socket to a Vehicle (12 Volt Negative Earth) Wire the socket as shown in Chart 'B' Take the Grey 7-core (or 13-core) cable into the boot through a suitable entry point.. * On caravans post 1996 this feed is automatically switched during towing by a relay in the caravan to charge the caravan battery. When.. Caravan 12S Wiring Diagram, showing fridge, battery charging, live & reversing light connections as well as the cable sizes from Western Towing This is the standard UK wiring of a the supplementary socket and plug otherwise known as 12S. There have been slight variations over the years as most newer caravans control the battery charging in the.