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T3 Wiring Harness

Texas Edition

New Member
Joined
Feb 7, 2014
Messages
40
Loc.
Odessa, Texas
Does anyone have a schematic for the T3 harness? I've got it installed but have an issue and seemed to have misplaced mine. I've emailed WCB but still waiting on a reply! Any help is appreciated. I think it is not offered anymore because when you pull it up on WCB web site it says it's not available anymore! Thanks in Advance!
 

Viperwolf1

Contributor
electron whisperer
Joined
Aug 23, 2007
Messages
24,344
Is this what you're looking for?
 

Attachments

  • nwa harness.pdf
    402.7 KB · Views: 55

Dusty

Bronco Guru
Joined
Jun 28, 2001
Messages
2,965
I would suggest giving Northwest Auto Wire a call, they can probably help you work through whatever issue you're having. I worked with them back when I was at WCB on developing the Bronco-specific version T-3 with the integrated headlight relays. I always found the owner at NWA to be very helpful and receptive to tech inquiries even from customers who bought through us rather than directly from him.
 

Viperwolf1

Contributor
electron whisperer
Joined
Aug 23, 2007
Messages
24,344
Here's a modified version of the NWA harness diagram to show connections to stock '70-'73 Bronco switches. I hope it helps.
 

Attachments

  • NWA harness to 70-73 Bronco.pdf
    672.4 KB · Views: 28

Viperwolf1

Contributor
electron whisperer
Joined
Aug 23, 2007
Messages
24,344
This is awesome. Is there much difference from 69 to 70? (I have a 69)

Only difference should be the column connector. '69 should have 2 connectors, one 2-pin for the rear brake/turn lights and a 6-pin for the other wires. Match the circuit number to the function using this diagram and the list below.

Light Blue=12v from turn flasher to turn switch, circuit #44
white-blue=right front turn and indicator lamp, circuit #2
orange-blue=right rear brake and turn lamp, circuit #5
green-white=left front turn and indicator lamp, circuit #3
green-orange=left rear brake and turn lamp, circuit #9
green or red-black=12v brake switch to turn signal switch, circuit #810
yellow=12v headlight switch to horn switch, circuit #460
blue-yellow=horn switch to horn, circuit #482
 

Attachments

  • column 66.JPG
    column 66.JPG
    19.1 KB · Views: 8
OP
OP
Texas Edition

Texas Edition

New Member
Joined
Feb 7, 2014
Messages
40
Loc.
Odessa, Texas
Thanks Viperwolf for the schematics I think that will help.
If I can't figure it out I will give them a call Dusty!! Thanks for all the info, I was pretty sure someone on here could help.
TimP I installed a tilt column and used the the switch in column!
Thx everyone!!
 
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