foRD ‘neUtRAl toW’ vehicleS
4.
Reinstall the brake light fuse, which you removed
in step 1.
5.
Test to verify that the diode has been properly in-
stalled — the towed vehicle’s brake lights will illuminate
when the brake pedal is pressed.
to wire the vehicle for towing…
There are three methods available which will allow
a towed vehicle’s turn signals, brake lights and running
lights to work in conjunction with the motorhome’s: 1)
install a taillight wiring kit (also called a ‘bulb and socket
kit,’ part number 155); 2) install magnetic tow lights
(part number 2100 or 2120); or 3) wire the vehicle’s
turn signals, taillights and brake lights for towing.
Instructions for the third method are below; instruc-
tions for the first two methods are included with the
kits.
1.
After you have installed a diode downstream from
the brake light switch (Figure 20), wire the vehicle’s
turn signals, taillights and brake lights for towing by
installing six diodes.
Before installing the diodes, verify that the towed
vehicle has
separate
brake and turn signals — on each
side, there are amber or red turn signal lights which
are
separate
from the brake lights (Figure 19).
Note: if the motorhome has combined brake and
turn signals, use Figure 21 to wire the towed vehicle.
If the motorhome has separate brake and turn signals,
visit www.roadmasterinc.com. Use the ‘Separate towed
vehicle to ‘separate’ motorhome’ wiring diagram, under
‘Tech Support.’
Note: if a 3-to-2 converter has been installed in a
motorhome with separate brake and turn signals, wire
the towed vehicle according to Figure 21.
To test for a 3-to-2 converter, use a test light to find
the turn signal and brake light circuits on the motorhome
electrical socket. If the same circuit energizes both the
turn signals and the brake lights, a 3-to-2 converter
has been installed. If the turn signal and brake lights
continued on next page
S
ome Ford vehicles, such as the Explorer, are
equipped with a ‘neutral tow’ kit. Use the instructions
below to wire these vehicles for supplemental braking,
and for towing.
to wire the vehicle
for supplemental braking…
if brakemaster is to be installed in any ford
vehicle with a ‘neutral tow’ kit, do not install a
brake-lite Relay. Using a brake-lite Relay in these
vehicles may prevent disengagement of the trans-
mission for towing, causing severe damage to the
transmission.
install a diode, rather than a brake-lite Relay,
according to the instructions below.
1.
Locate the towed vehicle’s brake light switch and,
with a test light, find the “cold” side of the brake light
switch. (The “cold” side of the switch does not register
voltage unless the brakes are applied.) With a 12-volt
meter, verify that you have found 12 VDC
+.
Then, remove the brake light fuse, located in the
vehicle’s fuse panel.
failure to remove the brake light fuse from the
vehicle’s fuse panel may activate the vehicle’s theft
deterrent system, or other electrical system indi-
cators, if the brake pedal is pressed during the
installation. this may require non-warranty repair
to the vehicle.
2.
Next, cut the brake light wire, a few inches down-
stream from the “cold” side of the brake light switch.
3.
Install the diode in line, as shown in Figure 20.
Mount the diode under the dashboard, a few inches
away from the brake light switch.
figure 20
17
Содержание BrakeMaster 9100
Страница 4: ...2...
