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Braun Corporation FMVSS No. 403 Quick Reference Installation Sheet 31312 Rev. A
Chassis
1. Drill 1-1/8” diameter grom-
met access hole. Check
under the vehicle for
obstructions.
2. Insert grommet. Secure
grommet with two self-tap
screws.
Power Cable
Aux.
Bat.
Pos.
Neg.
1/8" x 4" x 4"
Plastic
12"
Max.
Circuit
Sentry
Lead
Cable
Grommet
Ground
Cable
Frame
T
ube
3. Route ground and power
cables through grommet.
Route cables clear of
exhaust, other hot areas
and moving parts.
4. Connect ground cable to
vehicle framing member
(see detail below).
5. Attach power cable to
Auxiliary terminal of
Circuit Sentry. Attach one
end of 18" lead cable to
the Battery Circuit Sentry
terminal.
5/16"
External Tooth
Star Washer
9/32" Diameter
Pilot Hole
Thread Cutting
Screw
Figure O
Locate Circuit Sentry within
12" of positive (+) battery
terminal. Mount Circuit
Sentry with four self-tap
screws. Sandwich 1/8"
x 4" x 4" plastic between
Circuit Sentry and mount-
ing surface.
6. Carefully connect opposite
end of lead cable to Posi-
tive (+) post of battery.
Ground Cable Mounting
Figure N
Ground Cable
Lift mounted ground
cable ground cable must
be mounted to a vehicle
framing member to pro-
vide optimum ground.
3
Attach Power and Ground Cable
Vehicle and Lift Interlock
A 2-circuit lift/vehicle interlock
interface harness is provided inside
the tower cover. The Grey/Red wire
is connected to the battery power
stud. A butt connector is provided
on the Yellow/Light Blue wire.
To meet minimum NHTSA require-
ments, connect vehicle interlock
signal wires as detailed in Figure P
(Steps 1-4):
Optional Interlock Kits
Universal Interlock Kit 30940K
is available for easy interface
with vehicle OEM electronic
signals.
Note: Detailed installation
instructions are supplied with
interlock kit(s).
+
+
100024-
REV
ON
+
+
BARRIER
LIFT
INTERLOCK
Barrier
Down
Fold
Unfold
Sensor
Limit
Limit
Limit
Limit
Threshold
Door
Up
Floor
Stow
Deploy
Limit
Limit
Limit
Limit
Limit
W16
GY/R
Y/LT. BU
W
BK
Cut
wire.
Install butt
connector.
Threshold Warning
Sensor Harness
Door Cut-Out
Switch Harness
Connect vehicle
interlock signal wires.
Disconnect
and discard.
GY/R
(V
ehicle Secure Signal)
(Lift Stowed Signal)
Y/
LT. BU
BK
GY
1
3
4
2
Figure P
W
A
RNING
Install and verify
proper operation of
all NHTSA mandated
interlocks as
specied. Failure
to do so will result
in a non-compliant
installation and may
result in serious
bodily injury and/or
property damage.
4
Connect Interlock
Ground Cable Corrosion:
When mounting ground
cables, remove undercoat-
ing, dirt, rust, etc. from
framing member around
mounting holes (minimum
5/8” diameter area). Ap-
ply protective coating to
mounting holes to prevent
corrosion. Failure to do
so will void warranty of
certain electrical compo-
nents.