Blue Ox BX88175 User Manual

Page 2

Blue Ox Division, Automatic Equipment Mfg. Co. • One Mill Road, Industrial Park

Pender, Nebraska 68047 • Phone 402-385-3051 Fax 402-385-3360 • www.blueox.us

292-5958 10/07 Page 2 of 10

If your vehicle has ½” ID hose, adapt to 3/8” or use clamps to “squeeze” the ½”

down securely to 3/8”

 ttings. Use the clear vinyl spacer hose to adapt up to ½” OEM

size if needed.

TOAD VACUUM HOSE INSTALLATION (continued)

d. Cut the vacuum line installed in the previous step, insert “T” and connect reservoir to the system between

our new check valve and the booster check valve.

TOAD WIRING INSTALLATION: See Fig. 2

a. The box is equipped with a four wire

 at connector that uses the following connection sources.

1.White connects to GROUND.

2.Brown connects to BATTERY 20amp fused source.

3.Yellow is NOT USED.

4.Green connects to RV COLD SIDE BRAKE LIGHT SWITCH.

NOTE: There are two diodes supplied in case there is "electrical feedback". Most of electrical feedback

problems are "bad grounds". Be sure to check all grounds, before installing diodes. Check original car
wiring & wiring kit wiring for bad grounds.

b. The orange and blue wires feed between both vehicles at the trailer wiring connector, using two spare pins

in the wiring plug connector (if spare pins are not available, upgrade the customer to a higher capacity
connector).

c. Install the breakaway switch to a central location on the front of the towed vehicle's metal frame structure

(do not install to the baseplate or any additionally installed item) and attach the lanyard to the
receiver hitch on the rear of the RV.

d. Connect one wire from the breakaway switch to the positive terminal of the battery.
e. Connect the other wire from the breakaway switch to the Green wire feed to activate braking during

breakaway.

EMERGENCY/ANTI-THEFT SWITCH OPERATION (See Figure 2 for wire hook-up.)
a. The unlighted dash switch for the operation of the box while driving is an accessory that can provide

emergency braking while driving with the simple

 ip of a switch, if something happens to the driver. It will

also provide anti-theft protection while towing or parked during solo driving.

b. To test emergency stopping while driving, apply braking by

 ipping the dash switch to activate brakes and

stop the vehicle (on some vehicles, it may be necessary to shift to neutral to stop, if a high idle condition is
present).

c. To test the anti-theft mode, turn off the engine. Flip the toggle to the “ON” position (off center, and will stay

when you remove your

 nger). Fig. 2 Start the engine, and the brake system should apply itself.

Automotive Relay Note: If the towed vehicle's brake lights will work with the key off, there is a possibility

that the towed vehicle's battery may be drained after towing as the brake lights will be activated each time
the brake pedal is depressed by the ToadStop. To keep this from happening we have included electrical
parts (relay) with the kit to automatically disconnect the vehicle's brake lights when the key is off. The only
change you will notice to the towed vehicle is that the brake lights on the car will only be activated by the
brake pedal when the ignition is in the "on" position.

FINISHING ELECTRIC CONNECTIONS TO THE TOAD VEHICLE (Fig. 2)

(RECOMMENDED) When using the relay, cut the brake wire that is HOT when the brake pedal is applied.
Connect a wire from the end of the wire that is closest to the brake switch to tab 87 on the relay, making
sure to connect with a wire that goes to the wiring connector on the front of the vehicle. Then connect a