Page 2 of 3 Revision 01 10/03/19
VLM5 Towing Kit Installation & User Guide
4
Towing Harness Installation
The towing wiring harness is designed to plug into the VLM5, connect to an earth stud under the vehicle and then run
rearwards to the 13-pin socket.
The following describes the basic steps to install the towing harness. It does not cover normal workshop practices for
routing the harness, fixing the 13-pin socket, sealing through the floor and / or other mounting / fitting operations.
If you are unsure how to install the towing harness please ask your dealer or installation professional for help /
advice.
3) Referring to the overview photo, unplug the Power Input plug
from the VLM5 and plug it into connector C on the towing
harness.
4) Plug connector B of the towing harness into the VLM5 power
input connector.
5) Plug connector A of the towing harness into the Trailer Lights
output connector on the VLM5.
6) Connect ring terminal D to the earth bonding bolt in the chassis
below the vehicle.
7) Complete the installation by clipping / fixing the harness and
the 13-pin socket. Seal any apertures as required.
1) Firstly, locate the VLM5 and the earthing
stud below the vehicle and route the
towing harness from the VLM5 via the
earth stud to the 13-pin socket location.
2) The 13-pin socket E is usually prewired,
but if not please connect the individual
cables as per the diagram below.
View looking into the socket from the front
(mating surface under flap)
5
Testing
After installation of the harness the unit should be tested for correct operation as follows:
1)
Ensure the Sargent PSU is turned ON.
2)
View the VLM5 and look for a red LED illuminated (this LED in located on the circuit board near the power input
connector).
If you do not see an LED illuminated, please turn the side-lights on and recheck.
Vehicle
3)
With a helper viewing the rear of the vehicle, turn each light on / off confirming their correct operation.
4)
If you wish to force a failure to test the dashboard indication, turn on the left or right indicator, and with it flashing
disconnect / unplug the light cluster / indicator connection. This should then cause the dashboard warning to
show a ‘failure’ and the red LED on the VLM5 to start flashing. Reconnect the indicator to clear the fault.
Light board, trailer or caravan
5)
With the vehicle ignition OFF, plug the light board, trailer or caravan into the 13-pin socket.
6)
The vehicle will now detect the trailer a
nd flash each indicator to ‘learn’ the extra indicators fitted on the light
board, trailer or caravan.
