Connect terminal b of the zr1328a to 12 volts dc supply through a 15 amp fuse using 2803mm red wire. Connect the white wire from the 12s socket 7 core cable to vehicle earth 0 volts using a blue 64mm ring earth terminal.

Towbar Information Towbar Electrics Wiring Diagrams
Pct towing interface zr1328a wiring diagram. Fitting instruction zr2500 logicon towing interface suitable for use on 12v negative earth vehicles only not jaguar s or xjs designed and manufactured by pct limited sheffield s20 3ghuk. Complete with a color coded trailer wiring diagram for each plug type this guide walks through various trailer wiring installation solution including custom wiring splice in wiring and replacement wiring. When installing in vehicles with a single wire supplying the side light pulse width modulated and. Fitting this universal bypass relay to your car between the wiring system and trailer plug socket bypasses all of the fault finding and diagnostic systems created by can bus. You will need twin electrics if you require more power than what a single 7 pin socket can provide on a pre 2008 manufactured uk caravan post 2008 uk caravans are fitted with 13 pin connectors. The zr2500 logicon towing interface prevents any faults on or the additional load of the towed units road light system damaging the towing vehicles road light system.
This basically leaves you with a standard 12v power supply. Pct are one of europes leading designers manufacturers and distributors of towbars towing electrics and automotive products. 7 way universal bypass relay wiring diagram. Pct logicon zr1328b 7 way bypass towing relay interface used other car parts accessories for sale in gort galway ireland for 2000 euros on advertsie. Research fully committed to research and development extensive investment in new technology and production methods including state of the art towbar test equipment. Twin electrics is a 2 plug system which combines the single 7 pin 12n electrics socket with a 12s electrics socket.
Connect terminal a of the zr1328a to vehicle earth 0 volts using 903mm black wire and a red 64mm ring earth terminal. Should a fault arise with the towed unit the relay will only shut down the area at fault for instance the side light circuit and not blow the main module fuse as alternative products would. The logicon towing interface is designed to switch power directly from the towing ve. Telephone 44 0845 123 1111 email techsupport at pctautomotivecom fitting diagram 2008 rev 0 note. If your vehicle is not equipped with a working trailer wiring harness there are a number of different solutions to provide the perfect fit for your specific vehicle. Appropriate zr1328a output terminals as specified in the fitting diagram.
The logion towing interface module exclusive to pct automotive incorporates auto reset thermal current trips on all road light channels. 7 way universal bypass relay wiring diagram. Connect the white wire from the 12n socket 7 core cable to vehicle earth using a red 64mm ring earth terminal.