Brake controller install help

[OLDBULL8]

What was referred to above is NOT a TEE TAP. A TEE TAP kind of clamps on the wire you want to splice into and the wire you want to connect to it uses a spade terminal and connects into the TEE TAP. There is 3 or 4 sizes of TEE TAPS for different wire gauges, Brown, Yellow and Blue.

You must be registered for see images attach

 

[MTKirk]

The only reason i can see why they want you to get the brake signal from the turn signal harness is that most shops use t-taps on the brake wire at the switch and the wire breaks off after awhile which will **** off the rabs and pcm, electrically both points are the same wire with nothing in between them.

Ford made a mistake on the 87-91 trucks with the turn signal switch, when you turn on your hazards it doesnt disconnect the brake switch from the brake lights, what this does is makes your brake controller turn on and off with the hazard on (also locks and unlocks the torque converter on autos). The only way to fix this is to put a diode between the brake switch and turn signal switch and add a 3rd brake light or resistor to the brake switch.

92 and later trucks solve this problem by disconnecting the brake wire from the brake lights when you turn the hazards on and they add the 3rd brake light to providing a constant load for the brake wire.

In the end just hook to the green wire at either the brake switch, steering column, rabs or cruise control and you'll be fine.

Just ran into this hauling my travel trailer to southern California and back. When I turned the emergency flashers on to run slow up grades in the truck lanes the damn trailer brakes were pulsing on with the flashers! When I felt the need to use the flashers I pulled the connector off the back of the brake controller. What a bone head move by Ford!