Figure 16
Figure 17
2.
Route the harness to the vehicle's aftermarket tow
light harness.
3.
Find a convenient point to attach the wires to the
aftermarket tow light harness.
With a test light, identify the ground, right turn, left
turn and taillight wires in the tow light harness.
Typically, the wires are color-coded as follows:
white .......................................................... ground
green .....................................right turn and brake
yellow ......................................left turn and brake
brown ....................................................... taillights
any color ...................................................... brake
CAUTION
Color coding is not standard with all manufac-
turers. Use the color codes listed above for ini-
tial reference only; confirm the function of each
wire with a test light.
The vehicle's lighting system may not function,
or function improperly, if the wires are not connect-
ed correctly. Cross-wiring may also cause a short
circuit, a blown fuse or other electrical damage.
4.
Refer to Figure 16 or 17 and to the complete wiring
schematics near the beginning of these instructions to
attach the four-wire flat harness.
5.
All connections have now been made to the con-
troller. With two of the 3/8" self-tapping screws, at-
tach the controller at the mounting point you chose
earlier.
If the mounting point is carpeted and hidden from
view, you can attach the controller by cutting two small
slits in the carpet. This method eliminates the two
self-tapping screws. Position the controller and cut a
1¼-inch slot at the point where one of the mounting
continued on next page
Note: the following wiring instructions are based on
a typical connection from the motorhome. For other
wiring applications, contact ROADMASTER.
CAUTION
If the towed vehicle’s turn signals, taillights and
brake lights have been wired for towing, the connec-
tion you are about to make to the aftermarket tow
light harness must be upstream of the wiring diodes.
If it is not, InvisiBrake will not function prop-
erly. Severe damage to the towed vehicle’s tires
and brakes, as well as other consequential, non-
warranty damage, may also occur.
(If a bulb and socket wiring system has been
used, diodes are not necessary.)
CAUTION
Failure to establish good ground connections
WILL CAUSE non-warranty electrical damage to
InvisiBrake. Other consequential non-warranty
damage may also occur.
A good ground connection MUST EXIST…
• …between the towed vehicle and motorhome;
• …between InvisiBrake and the towed vehicle;
and
• …between InvisiBrake and the motorhome.
If the towed vehicle has been wired for towing,
check to make certain a good ground exists be-
tween the towed vehicle and the motorhome; refer
to the illustrations below and to the complete wiring
schematic near the beginning of these instructions
for InvisiBrake ground wire connections.
1.
Attach the four-wire flat harness with the six-pin
connector (page one) to the corresponding connector
on the controller.
Attach the four-wire flat harness; attach the controller
13
