trailer wiring

[jleary3rd]

I have a 1990 full-size bronco and was checking to see if you need the special T-connector for connecting a 7 wire trailer connector.

 

[andre]

sry look like first post did not work

yes here where u can get some

http://www.rockauto.com/catalog/raframecatalog.php

look in connection you're find it

 

[miesk5]

yo;

Also

Trailer Harness Wiring Colors TSB 89-14-17 for 90 Bronco & F Series

Source: by Ford

TSB 89-14-17 Trailer Wiring Colors

Publication Date: JULY 14, 1989

LIGHT TRUCK: 1990 BRONCO, F-150, F-250, F-350

ISSUE: Trailer tow wire harness color codes have been revised to be compatible with SAE color code standards. When hooking up a vehicle to a trailer that has been wired according to the SAE standard, the wire color/circuits will match.

ACTION: Refer to the following Circuit Color Code Chart for the correct color/circuit usage.

CIRCUIT COLOR CODE CHART

CIRCUIT FUNCTION - OLD COLOR* - SAE COLOR*

Trailer LH Turn/Stop - LG/O - Y

Trailer RH Turn/Stop - O/LB - DG

Trailer Brake Lamp From Controller - R/LG - R/LG

Trailer Electric Brakes Solenoid - BL/BR - DB

Trailer Back Up - BK/PK - R/Y

Trailer Ground - W - W

Trailer Running/Tail - W/R - BR/W

Trailer Power (Battery Charge) - Y - O

Trailer Brake Control Feed - R - R

Color Key - Color Abbreviations

BL-Blue

BK-Black

BR-Brown

DB-Dark Blue

DG-Dark Green

LB-Light Blue

LG-Light Green

O-Orange

P-Pink

R-Red

W-White

Y-Yellow

 

[vivalaporkchop]

i have a 91 bronco and i am not gettting any power to my plug for the trailer and im not sure where or how to look for the problem. any hints or advise??

 

[miesk5]

i have a 91 bronco and i am not gettting any power to my plug for the trailer and im not sure where or how to look for the problem. any hints or advise??

YO CHOPS,

Check Fuse 4

but since you did not mention that any ext lights are out such as brakes and turn signals,

Check for power and Grounds with a test lamp or meter using this Wiring Diagram in 87-91

Source: by Chilton

I THINK the Ground is in same location as my 96



Item Part Number Description

1 13A409 Wiring Assembly

2 N801846-S36MG *****

3 14405 Wiring Assembly

4 Locators, Position in Holes Provided (Part of 14405)

5 Trailer Tow Ground Wire (Part of 14405)

6 14086 Wiring Assembly

A Tighten to 5-7 Nm (44-62 Lb-In)

Fusible Link Location in Wiring Diagram in a 90; Fusible Link A-Brown 18ga to Rear Window Defroster; L-Brown 18ga to C202; M-Blue 20g to C202 (Engine Bay at Firewall to Dash Harness); G-Blue 20g to Exterior Lamps; W-Blue 20g to Fuel Pump Relay; N-Blue 20g to EEC Power Relay; G-Blue 20ga to Trailer Adapter; P-Blue 20ga to Splice 115 to Connector 202 & Exterior Lamps & Daytime Running Lamp (DRL); J-Green 14ga to Alternator

Source: by Seattle FSB (SeattleFSB) at http://www.supermotors.net/registry/media/854314