Installation Guide

8/13/09
51500
UNIVERSAL BRAKE CONTROL
WIRING KIT
REFER TO ILLUSTRATIONS ON BACK OF
PAGE FOR DIRECTIONS BELOW.
1. Mount the 30 Amp circuit breaker near the tow
vehicle’s positive battery terminal. Determine the
length of 10 ga. wire needed to connect one side
of circuit breaker with the positive side of battery.
Once length is determined, cut that length of
black wire from duplex and strip 3/8” of
insulation of each end of the wire. Continue by
crimping one #10 ring terminal to one end of the
wire and one 3/8” or 1/2”ring terminal
(determined by battery terminal size) to the other
side of the wire. Attach #10 ring terminal side of
wire to stud on circuit breaker labeled “BAT”.
Tighten nut with 3/8” box end wrench.
Attention: The opposite end of the wire will be
attached to positive side of battery in the last
step.
2. Feed the 10 ga. duplex wire from the brake
controller into the engine compartment to the
battery. Cut length as necessary.
Attention: When passing the duplex wire
through the fire wall into the engine
compartment, utilize an existing grommet, add
a grommet or fill the hole with silicone rubber
to insulate and protect the wire.
3. On the end of the duplex wire you just ran to
the battery, crimp a 3/8” or 1/2” ring terminal to
the white wire and a #10 ring terminal to the
black wire in the same manner as Step 1.
4. Attach the black wire to the circuit breaker
stud labeled “AUX”. Tighten nut with 3/8” box
end wrench.
5. In the cockpit, attach the black duplex wire to
the brake controller’s battery wire(typically black)
using one of the supplied yellow butt connectors
or by soldering the leads together and insulating
with heat shrink tubing.
6. Attach the white duplex wire to the brake
controller’s ground wire(typically white) using one
of the supplied yellow butt connectors or by
soldering the leads together and insulating with
heat shrink tubing.
7. 1989-1991 E & F Series Van and Trucks with
Anti-Lock Brakes. (All other vehicles continue to
Step 8.
Locate the semi-circle turn signal harness
connector (as shown) located on the steering
column under the dash. The connector will have
two rows of wires, a row of four and a row of
seven. Attach the stop signal wire(typically red)
from the brake controller to the light green wire
using a wire tap.
Do NOT connect to the Red wire with green
stripe as serious damage may occur.(continue to
step 9.)
8. Locate the brake pedal switch on the back side
of the vehicles brake pedal. Determine which
side of the switch is the “cold” or switched side
by probing the terminals of the switch with a test
light or volt meter. The cold terminal will only
indicate power when the brake pedal is
depressed. Attach the stop signal wire(typically
red) from the brake controller to the cold side of
the stop signal wire using a wire tap.
9. Feed the 10 ga. blue cross-linked wire from the
brake controller to the trailer connector at the
rear of the vehicle, taking up any slack in the wire.
Attention: When passing the cross-linked wire
through any sheet metal, utilize an existing
grommet, add a grommet or fill the hole with
silicone rubber to insulate and protect the wire.
10. Attach the blue cross-linked wire to the brake
controller’s electric brake wire(typically blue)
using one of the supplied yellow butt connectors
or by soldering the leads together and insulating
with heat shrink tubing.
11. At the rear of the vehicle, trim any loose blue
wire. Attach the blue wire to the vehicle’s trailer
connectors electric brake terminal. (see the
connector’s wiring diagram for the correct
terminal location.
12. Secure any loose wires with the cable ties
provided.
13. Connect the black power wire from the circuit
breaker to the positive side of the battery.
Connect the white ground wire from the brake
controller to the negative side of the battery.
Reconnect the tow vehicle’s negative battery
cable to the battery.
Attention: The Black Power wire must be
connected directly to the tow vehicle’s
positive(+) battery terminal via the
self-resetting 30 amp circuit breaker. Do not
attempt to connect this wire to the vehicle’s
fuse panel or any other accessory wiring.
Failure to connect directly to the vehicle’s
battery may damage vehicle wiring and cause
trailer brake failure.
KIT INCLUDES:
(1) 30 AMP CIRCUIT BREAKER
(2) #10 RING TERMINALS
(2) 3/8” RING TERMINALS
(2) 1/2” RING TERMINALS
(3) 12-10 GAUGE BUTT CONNECTORS
(1) 10’ - 10 GA BLK/WHT DUPLEX WIRE
(1) 20’ - 10 GA BLUE X-LINKED WIRE
(8) 8.5” CABLE TIES
TOOLS NEEDED:
TEST LIGHT
WIRE STRIPPER/CUTTER
CRIMP TOOL
3/8” BOX END WRENCH
LIGHT GREEN WIRE