FITTING OF TOWBAR & TRAILER ELECTRICS for CAR VAN CARAVAN CAMPER HGV
PLANT EQUIPMENT Mobile Service to Telford (TF) and Shrewsbury (SY), Shropshire areas.
Auto electrical component supply , Installation
of wiring , sockets, relays, Fault finding, and repair. Trailer &
Semi-trailer lights repair Telephone 01952 247007
Towbar Accessories
Quality Towing Accessories for use on car trailer,caravan, boat trailer,heavy goods vehicle semi trailer, agricultural tractor , recovery vehicle, etc: Click the image or the details link for more information about the product, or just click
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12N METAL 7 PIN PLUG
Price: £2.50| Pack size:1
12N METAL 7 PIN SOCKET
Price:£2.80net Pack size:1
7 CORE CABLE
for trailer & Caravan lighting applications
Part No SARB703 10 Metre Roll £12.62 net
Top tip
A common fault with trailer electrics results in all lights dimming and flashing when brake or indicators are switched on can be caused by a bad earth return connection on vehicle or trailer wiring, possibly due to corrosion at a wiring plug.
12N Terminal No.
12N Wire Colour
12N Function
1 (L)
Yellow
Left Hand Direction Indicator
2 (54G)
Blue
Rear Fog Lamp
3 (31)
White
Earth
4 (R)
Green
Right Hand Direction Indicator
5 (58R)
Brown
Right Hand Tail Lamp, Sidelamp,
No. Plate Lamp
6 (54)
Red
Brake lights
7 (58L)
Black
Left Hand Tail Lamp, Sidelamps.
7 PIN PLUG 12S GREY PLASTIC
Price: £2.40 | Pack size:1
24N HGV SEMI TRAILER 7 PIN PLUG
"
Price: £9.99 | Pack size:1
24N HGV TRACTOR UNIT 7 PIN SOCKET
Price: £12.95 | Pack size:1
Many modern vehicles have computerised vehicle electrical systems often known as CANbus systems.
Vehicles using CANbus wiring may require fitment of a bypass relay or even vehicle specific wiring kit when fitting towing electrics. Some vehicles may also require a computer software update to modify suspension settings whilst towing.
12N SOCKET READY WIRED WITH 7 CORE CABLE AND MOUNTING
Auxilliary Power supply and refrigerator wiring from the vehicle should be supplied via a relay wired to activate only when the vehicle engine is running, to prevent high current draw from the auxilliary battery as the vehicle starter motor operates. This power circuit should also be fitted with a fuse close to the vehicle main battery.
12S auxiliary circuit plug and socket wiring for 12 volt towing electrics
- Dual towbar electrics
12S Terminal No
12S Wire Colour
12S Function
1 (L)
Yellow
Reversing Lamp
2 (54G)
Blue
Battery Charging from Split
charge Relay (Pre 1997) or
Spare (Post 1997) Switched output
from relay on vehicle
3 (31)
White
Earth
4 (R)
Green
Power Supply permanent 12 volt
(Caravan Interior lights)
5 (58R)
Brown
Sense (not used in some
applications)
6 (54)
Red
Fridge
7 (58L)
Black
Spare or Earth for pin 6
FLASHER UNIT (L)
Price: £11.38 | Pack size:1
12 Volt Direction indicator flasher unit (L) Price: £11.38
General details: Flasher unit with pin C2 may be required on some vehicles to operate dashboard trailer indicator warning lamp. Check with the specific vehicle manufacturers information to make sure this item is suitable for the intended application
Connection details:
Terminal 49 : Power input
Terminal 49a : Power output to Left / Right indicator switch or Hazard warning switch