Tail Lights, Brake, & Blinker
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Tail Lights, Brake, & Blinker
I am a novice at all of this, and am hoping you can help.
I have a 1969 F100 4X4 Ranger
I have no tail lights, no brake lights, and no blinkers. (They used to work, until we recently did quite a bit of work on the truck, including pulling the bed off to access the frame, Just for fun I will have to post some photos)
So, first I replaced all of the bulbs, then I thought of the fuse for the B/U Lamp, and Signals.
The fuse seems to be okay, but my tester shows power to only one side of the fuse. The other fuses seem to have power to both sides.
My tester shows no power at the factory connectors to the rear lights.
Can anyone help me by suggesting what I should check next.
Thank you.
Susan
I have a 1969 F100 4X4 Ranger
I have no tail lights, no brake lights, and no blinkers. (They used to work, until we recently did quite a bit of work on the truck, including pulling the bed off to access the frame, Just for fun I will have to post some photos)
So, first I replaced all of the bulbs, then I thought of the fuse for the B/U Lamp, and Signals.
The fuse seems to be okay, but my tester shows power to only one side of the fuse. The other fuses seem to have power to both sides.
My tester shows no power at the factory connectors to the rear lights.
Can anyone help me by suggesting what I should check next.
Thank you.
Susan
Fleet Owner
Joined: Jun 1999
Posts: 24,552
Likes: 74
From: Creedmoor, North Carolina
Susan Welcome to FTE. 
Your truck has 3 wires going from the cab to the rear. The wire has a factory connection just off the drivers side frame rail at the rear. You may have broken the connection or damaged the wire, or unplugged it.
I would start at the left rear corner. I can never remember which color does what but, one is for tail- license plate, first pull on light switch should power up.
You may have to have the ign. switch on to complete. Pull turn signal lever on to one side. If flashing on the front you will be off to a good start, you will have to find that wire at the rear. The brake and turn signal share the same wire as do the bulbs. One for left, one for the right, the 3rd tail.
I prolly didn't splain it very well but it is pretty simple, and while a little tricky not overly complicated.
Since you removed the bed it's most likely in that area.
John
Your truck has 3 wires going from the cab to the rear. The wire has a factory connection just off the drivers side frame rail at the rear. You may have broken the connection or damaged the wire, or unplugged it.
I would start at the left rear corner. I can never remember which color does what but, one is for tail- license plate, first pull on light switch should power up.
You may have to have the ign. switch on to complete. Pull turn signal lever on to one side. If flashing on the front you will be off to a good start, you will have to find that wire at the rear. The brake and turn signal share the same wire as do the bulbs. One for left, one for the right, the 3rd tail.
I prolly didn't splain it very well but it is pretty simple, and while a little tricky not overly complicated.
Since you removed the bed it's most likely in that area.
John
Cargo Master
Joined: Jul 2003
Posts: 2,735
Likes: 20
From: Four Oaks, NC
I am a novice at all of this, and am hoping you can help.
I have a 1969 F100 4X4 Ranger
I have no tail lights, no brake lights, and no blinkers. (They used to work, until we recently did quite a bit of work on the truck, including pulling the bed off to access the frame, Just for fun I will have to post some photos)
So, first I replaced all of the bulbs, then I thought of the fuse for the B/U Lamp, and Signals.
The fuse seems to be okay, but my tester shows power to only one side of the fuse. The other fuses seem to have power to both sides.
My tester shows no power at the factory connectors to the rear lights.
Can anyone help me by suggesting what I should check next.
Thank you.
Susan
I have a 1969 F100 4X4 Ranger
I have no tail lights, no brake lights, and no blinkers. (They used to work, until we recently did quite a bit of work on the truck, including pulling the bed off to access the frame, Just for fun I will have to post some photos)
So, first I replaced all of the bulbs, then I thought of the fuse for the B/U Lamp, and Signals.
The fuse seems to be okay, but my tester shows power to only one side of the fuse. The other fuses seem to have power to both sides.
My tester shows no power at the factory connectors to the rear lights.
Can anyone help me by suggesting what I should check next.
Thank you.
Susan
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New User
Joined: Apr 2011
Posts: 4
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Thank you for the help. I replaced the fuse, but still do not have lights to the rear. I have looked underneath at the frame rail, and under the hood at the connection coming down from out of the firewall. The marker lights in the front work & blink. In the rear, none of the lights work.
I have what looks to be the original harness. Under the hood, lighting harness connections to the rear are:
Four Pin Plug: Green, Yellow, Black/Red, Black
Two Pin Plug: Pink, Pink (one of these wires is broken off of the supply side of the plug)
Loose Wires: Black with Red Stripe (two wires) These were never hooked to anything, and just hang loose off of the harness.
Single Pin Plug: Orange (Not Hooked to Anything)
I would really appreciate any indication as to what these different wires are for. Also, if anyone has a wiring diagram for this pickup, and finally, if anyone could suggest where I may be able to purchase a replacement wiring harness.
I have what looks to be the original harness. Under the hood, lighting harness connections to the rear are:
Four Pin Plug: Green, Yellow, Black/Red, Black
Two Pin Plug: Pink, Pink (one of these wires is broken off of the supply side of the plug)
Loose Wires: Black with Red Stripe (two wires) These were never hooked to anything, and just hang loose off of the harness.
Single Pin Plug: Orange (Not Hooked to Anything)
I would really appreciate any indication as to what these different wires are for. Also, if anyone has a wiring diagram for this pickup, and finally, if anyone could suggest where I may be able to purchase a replacement wiring harness.
Cargo Master
Joined: Jul 2003
Posts: 2,735
Likes: 20
From: Four Oaks, NC
Well a possibility is that you have a short somewhere causing your known-good fuse to blow as soon as you put it in.
I worked on my wiring last year and kept a notebook of the different color wires and what they went too.
Hope this is some help:
Rear:
Left side
Tail light - brown
Brake light - yellow
Backup light - black/red
Right side
Tail light - black
Brake light - green
Backup light - red/blue
I worked on my wiring last year and kept a notebook of the different color wires and what they went too.
Hope this is some help:
Rear:
Left side
Tail light - brown
Brake light - yellow
Backup light - black/red
Right side
Tail light - black
Brake light - green
Backup light - red/blue
Fleet Owner
Joined: Jun 1999
Posts: 24,552
Likes: 74
From: Creedmoor, North Carolina
Cracker, I don't know where you found all those wires from, but they are not factory. There would be a 4th wire going to the rear for backup, but backup & tail light share sides no left & right.
I'm still betting the prob is behind the cab and before the taillight bulbs.
John
I'm still betting the prob is behind the cab and before the taillight bulbs.
John
Cargo Master
Joined: Jul 2003
Posts: 2,735
Likes: 20
From: Four Oaks, NC
Cracker, I don't know where you found all those wires from, but they are not factory. There would be a 4th wire going to the rear for backup, but backup & tail light share sides no left & right.
I'm still betting the prob is behind the cab and before the taillight bulbs.
John
I'm still betting the prob is behind the cab and before the taillight bulbs.
John
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