Towbar wiring Guides
Guides for towbar electrics and wiring kits
This page contains wiring guides and diagrams for the kits available from P F Jones.
- 7 Way Bypass
- The By-Pass Relay is needed on some vehicles to protect the vehicle's bulb failure system and management control unit to ensure that the lights work correctly on your trailer or caravan.
- 12N Socket
- The 12N socket is used to supply power to your trailers/caravans exterior lights when towing.
- 12S Socket
- The 12S socket is used to provide power for your caravan appliances such as fridge, auxiliary battery and your lighting and water pumps.The 12S is made up of 7 wires.
- Split Charge Relay
- The split charge relay is used to supply power to pins 2 & 6 of the towbar's S-Type socket. This is to power the fridge and charge the auxiliary battery.
- 13 Pin Socket
- Please call for information.
For information on any of these wiring guides please call 0800 5200 478 and ask for Brian Glover