Back up lights
Carpenter Local 745
Joined: Apr 2006
Posts: 5,794
Likes: 11
From: on da beach
Splicing to the reverse wire only trips the relay ON, the power to the lights
Comes from another source, say the battery.
I have lights on our 07 Explorer and never had any problems with the set up.
Place the relay and connections behind a taillight for easy, dry installation.
Senior User
Joined: May 2011
Posts: 103
Likes: 0
From: Wausau Wisconsin
It wouldn't matter what Amps they are drawing if you hook them up with a relay as described.the relay takes the load not the factory reverse lights sys.
Carpenter Local 745
Joined: Apr 2006
Posts: 5,794
Likes: 11
From: on da beach
Post Fiend
Joined: Jan 2009
Posts: 6,521
Likes: 11
From: Greenwood, SC
Yea, the relay would be best but it sounds like a single light or a pair of LED lights would work wired straight.
In my case, and food for thought for y'all, might want to add a switch to disable the lights. If you have a trailer in tow you are likely to blind yourself with nice bright lights hitting the front of your trailer.
In my case, and food for thought for y'all, might want to add a switch to disable the lights. If you have a trailer in tow you are likely to blind yourself with nice bright lights hitting the front of your trailer.
Senior User
Joined: Dec 2008
Posts: 218
Likes: 0
https://www.fleet.ford.com/truckbbas.../Q-190R3v2.pdf
last page of this document states:
INSTALLATION OF ADDITIONAL REVERSE LAMPS
In 2011MY Super Duty vehicles, the reverse lamp circuit is monitored for over-current conditions. If the Body
Control Module (BCM) detects current draw that exceeds design parameters, it will trigger a Diagnostic Trouble
Code (DTC) and disable the reverse lamp circuit.
When installing additional reverse lamps you may encounter this situation. To remedy this, use the trailer tow wiring
reverse lamp circuit (CAT16, gray with brown stripe) found in the blunt cut wires at the end of frame. If your vehicle
is equipped with the trailer tow connector, the reverse lamp circuit (CAT16, gray with brown stripe) is found on pin 7
of the 7-way connector.
Alternately a relay may be installed to provide power to additional reverse lamps or LED-style reverse lamps may be
used provided they do not trigger a DTC.
If you have any questions, please contact the Ford Truck Body Builders Advisory Service as shown in the header of
this bulletin.
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