
BX88269
Clear LED Bulb & Socket Tail Light Wiring Kit
Installation Instructions
WARNING: Improper wiring may result in blown 
fuses, damaged wiring, re, and/or bodily injury. Blue 
Ox® recommends that a trained professional install 
the tail light wiring kit. Blue Ox® will not be 
responsible for any personal property damage or 
bodily injury caused by improper wiring or misuse of 
this product.
Tools Required
Wire Terminal Crimper  Wire Stripper 
Small Wire Cutter  Phillip Screw Driver 
Electrical Tape  9/16" Drill Bit
Parts List
Part 
No.  Qty.   Description
201-0654 .........1 ........#10-16 x 1" Self Tapping Screw
229-0540 .........1 ........................8' 16 Ga. Brown Wire
229-0541 .........1 ........................8' 16 Ga. Green Wire
294-0250 .........6 .................16-14 Ga. Butt Connector
294-0327 .........1 ...................10-12 Ga. Ring Terminal
294-0562 .........1 ........................... 26' Wiring Harness
294-0990 .........2 ........ Clear LED Bulb & Socket Assy.
Installation
1. Starting in the engine compartment of the towed 
vehicle, run the 26 ft. harness through the re 
wall, under the driver's side door sill plate, under 
the back seat, into the trunk area or run harness 
through engine compartment and beside frame 
rail to the back of vehicle. Depending on the 
motorhome set up, the wire at the front of the 
engine compartment should be wired into either a 
4 or 6 pin connector that is mounted to the front of 
the towed vehicle.
2. The bulb and sockets are installed into the 
backside of the vehicles tail light assemblies. 
The location should be as at as possible, with 
enough clearance for the bulb on the inside and 
the socket on the back side. Use a 9/16" drill bit 
to drill a hole into each housing at the selected 
location.
4. Insert the bulb and socket into the holes by gently 
pushing them into place. Seal socket to tail light 
housing with a good silicone caulk.
5. Run the black/red and brown/white wires from the 
passenger's side socket to the drivers side where 
the four wire loom is.
6. Crimp the three brown/white wires together. Now 
crimp the green turn signal/brake wire from the 
four wire loom, the green wire and the black/red 
(brake/turn signal) wire from the passenger's side 
together. The white/green (ground) wires should 
be grounded to the frame with ring terminals and 
self tapping screws. The white wire from the four 
wire loom should be connected with the white/ 
green wire from the driver's side socket then 
grounded. Refer to Figure 1.
7. At the driver's side socket connect the black/red 
(brake/turn signal) wire and the yellow (brake/turn 
signal) wire from the four wire loom. See Figure 1.
8. Place the wires out of the way. Test the system 
before attaching the tail light assemblies back onto 
the vehicle. To test the system, a 4-wire or 6-wire 
trailer plug must be installed on the front of the 
towed vehicle using the 4-wire harness installed.  
Once installed, plug the vehicles together with 
coach and test each turn signal and the brake 
lights. If lights do not work properly, there must 
be a loose connection, or a wiring error. Recheck 
to insure all connections were made correctly, 
especially the ground connections.
NOTE: If the towing vehicle is equipped with separate 
amber turn signals and red brake lights, a tail light 
converter (not included in wiring kit) is needed 
to convert the amber/red 5-wire system to the 
standard “red only” 4-wire system.
NOTE: A heavy duty asher unit may be required in 
the towing vehicle to power the added circuit load 
of a towed vehicle.
3. The black/red wire is the brake/ turn signal wire 
and the brown/white is the tail light wire. The 
white/green wire is used for the ground wire.
405-0245  Page 1 of 2  8/21/13 

BX88269
Clear LED Bulb & Socket Tail Light Wiring Kit
Installation Instructions
TROUBLE SHOOTING
PROBLEM - LIGHTS ARE DIM AND/OR ACTIVATES 
ANOTHER LIGHT.
POSSIBLE CAUSES/SOLUTIONS
• Short circuit in the system on either or both vehicles
• Towing vehicle alternator too small
• Towing vehicle wiring is too light to handle extra   
 power requirements
• Towing vehicle may require a heavy duty asher unit    
 to handle the extra load
PROBLEM - DOESN'T WORK WHEN ACTIVATING 
BLINKER, TAIL LIGHTS OR BRAKES.
POSSIBLE CAUSES/SOLUTIONS
• Wiring error to the bulb and sockets. 
• Bad ground on either or both vehicles.
• Fuse in towing vehicle is blown. Check continuity 
 of all wires to ground to assure harness is not short  
 circuited
• Bad connection between female and male plugs
• Check for solid connection.
• Clean both four way connections.
WHITE
BROWN
YELLOW
GREEN
YELLOW
BLACK/RED
BROWN/WHITE
WHITE/GREEN
DRIVER'S SIDE
Note: Original inventory of the wiring kits were received 
with red/green/white wiring. The newer inventory has the 
standard black/brown/white wiring.
Please reference the above diagram for proper wire colors.
GREEN
BROWN/WHITE
WHITE/GREEN
BLACK/RED
PASSENGER'S SIDE
CUSTOMER SERVICE COMMITMENT
Blue Ox® is committed to providing you with exceptional customer care throughout your lifetime with our 
products. Our team is here to assist you with any questions you may have regarding the performance of your 
product. Simply call (402) 385-3051 and you can speak with our customer care team. 
Additionally, please visit our website to see which rallies our Destination America team will be attending. For a 
nominal fee, our service technician will service your towing system to ensure it’s in proper working condition. 
Also, as a commitment to our customers, should you visit our factory, you can stay at our full service Blue Ox® 
campground at no charge along with enjoying a factory tour.
Again, thank you for being our customer and for the condence you have shown in the performance of our 
products. It is because of customers like you we enjoy the success we have today.
One Mill Road, Industrial Park
Pender, Nebraska 68047
405-0245  Page 2 of 2  8/21/13 
© 2013 Blue Ox 
Phone: (402) 385-3051 
 Fax: (402) 385-3360
www.blueox.com