Wiring Additional Back-Up Lights
08-06-2010, 05:02 AM
#11
JK Super Freak
Join Date: Oct 2008
Location: Sussex County, NJ
Posts: 1,415
Likes: 0
Received 0 Likes
on
0 Posts
The only issue with using the backup lights as a trigger for a relay, is that should you need to get light back there, you must be in reverse to do so. Take the extra time, and put them on a switch. There's ways to make both a switch or the backup lights work... but at least give yourself the option of switching it directly.
In order to wire your aux reverse lights to come on by using a dash mounted switch AND also be activated by shifting into reverse, follow the wiring diagram below. Note that you will need a relay with an 87A pin (available at napa). The factory reverse light wire you will need to tap is the white wire with gray stripe. Just remove the 4 screws that secure your tail light lens to acess the wires behind it. Locate the reverse light bulb and then find the white wire with gray stripe.
Here ya go...Excuse my shitty microsoft paint rendering
RELAY:
86: to ground
87: to aftermarket fog lights (white wire)
87A: to center terminal on switch
85: to white wire w/ gray stripe (factory reverse)
30: to battery with inline fuse
Here ya go...Excuse my shitty microsoft paint rendering
RELAY:
86: to ground
87: to aftermarket fog lights (white wire)
87A: to center terminal on switch
85: to white wire w/ gray stripe (factory reverse)
30: to battery with inline fuse
08-07-2010, 07:24 PM
#13
JK Enthusiast
Thread Starter
Join Date: Nov 2006
Location: San Antonio TX
Posts: 232
Likes: 0
Received 0 Likes
on
0 Posts
In order to wire your aux reverse lights to come on by using a dash mounted switch AND also be activated by shifting into reverse, follow the wiring diagram below. Note that you will need a relay with an 87A pin (available at napa). The factory reverse light wire you will need to tap is the white wire with gray stripe. Just remove the 4 screws that secure your tail light lens to acess the wires behind it. Locate the reverse light bulb and then find the white wire with gray stripe.
Here ya go...Excuse my shitty microsoft paint rendering
RELAY:
86: to ground
87: to aftermarket fog lights (white wire)
87A: to center terminal on switch
85: to white wire w/ gray stripe (factory reverse)
30: to battery with inline fuse
Here ya go...Excuse my shitty microsoft paint rendering
RELAY:
86: to ground
87: to aftermarket fog lights (white wire)
87A: to center terminal on switch
85: to white wire w/ gray stripe (factory reverse)
30: to battery with inline fuse
is that a 3 position switch? also, would the lights always have "hot power" tied to it with the feed from the battery vs. an ignition switch power source?
i really appreciate everyone's input and patience...
08-07-2010, 08:08 PM
#14
JK Super Freak
Join Date: Oct 2008
Location: Sussex County, NJ
Posts: 1,415
Likes: 0
Received 0 Likes
on
0 Posts
Its a switch with an LED light, so it has three prongs. You can use a constant or switched source. For my reverse lights, I like the constant in case I need to flick em on while camping or something and I dont want to start the engine...
08-08-2010, 12:28 AM
#16
JK Enthusiast
Thats a dual setup. yes the manual switch has a constant power and you can turn them on manually without the vehicle being started. The switch overrides the relay.
If you tie into the reverse light wires according to the diagram, the lights will come on when you put it into reverse with the manual switch turned off.
If you tie into the reverse light wires according to the diagram, the lights will come on when you put it into reverse with the manual switch turned off.
12-18-2010, 10:35 AM
#17
JK Enthusiast
Join Date: Feb 2010
Location: Damascus, md
Posts: 135
Likes: 0
Received 0 Likes
on
0 Posts
Curious if anyone could help me out please.
I ran the wires from the lights to behind my tail light. From the relay ran a fused power wire to the battery. Spliced the "switch" wire in to the white wire with a gray stripe. Grounded the black.
Checked the lights, nothing. Not sure where I went wrong. Appreciate any ideas you may have.
I ran the wires from the lights to behind my tail light. From the relay ran a fused power wire to the battery. Spliced the "switch" wire in to the white wire with a gray stripe. Grounded the black.
Checked the lights, nothing. Not sure where I went wrong. Appreciate any ideas you may have.
12-18-2010, 02:55 PM
#18
JK Junkie
Curious if anyone could help me out please.
I ran the wires from the lights to behind my tail light. From the relay ran a fused power wire to the battery. Spliced the "switch" wire in to the white wire with a gray stripe. Grounded the black.
Checked the lights, nothing. Not sure where I went wrong. Appreciate any ideas you may have.
I ran the wires from the lights to behind my tail light. From the relay ran a fused power wire to the battery. Spliced the "switch" wire in to the white wire with a gray stripe. Grounded the black.
Checked the lights, nothing. Not sure where I went wrong. Appreciate any ideas you may have.
1) 12 volt + from battery - to - #30 on relay.
2) #87 on relay - to -lights ( ground lights ).
3) From reverse light - to - either 85 or 86 on the relay. ( doesen't matter witch one ).
4) 85 / 86 on relay ( witch ever one is left )- to - ground.
