Brake controller

Does it have spark? And other questions...

Moderators: Greenleaf, BC847, Richie O

Brake controller

Postby mrc » Sun Mar 13, 2016 11:35 am

92 w350, would our trucks come with a factory brake controller plug or did they start in 2nd Gen? Pictures please
92 W350 flatbed with duels, club cab, stock engine, automatic (for now), 4" exhaust, air bags
mrc
fuel screw!!!!
 
Posts: 44
Joined: Sat Mar 12, 2016 8:11 pm
Location: Northern California

Re: Brake controller

Postby Philip » Sun Mar 13, 2016 3:24 pm

1st gen didn't have brake controllers or the harness for them. That started some where in the 2nd gen year ranges.
93 W350 Club/cab w/duals, buckets & console, B&W flatbed, G56, 6 spd, 3:07 rears, gages, HX40/16, 4" exhaust, 6X.018 sticks, rear air ride suspension
User avatar
Philip
14mm rotor
 
Posts: 1908
Joined: Mon Jan 08, 2007 10:50 am
Location: Indiana

Re: Brake controller

Postby 92cummins89 » Wed Nov 07, 2018 8:54 pm

Is there a write up on how to wire one in ?
1992 4x4, 4” diamond eye exhaust, nv4500, he351cw
92cummins89
fuel screw!!!!
 
Posts: 175
Joined: Sat Sep 14, 2013 8:46 pm
Top

Re: Brake controller

Postby Philip » Thu Nov 08, 2018 7:44 am

No write ups that I know of.

You will need a 20 amp power feed to the controller.

You need to run a wire to the rear of the truck for the trailer plug.

You need to tap into the output wire from the brake light switch.

Put your marker lights on a relay. Do not run the trailer markers off of the headlight switch. That burns the switch plug on our trucks.
93 W350 Club/cab w/duals, buckets & console, B&W flatbed, G56, 6 spd, 3:07 rears, gages, HX40/16, 4" exhaust, 6X.018 sticks, rear air ride suspension
User avatar
Philip
14mm rotor
 
Posts: 1908
Joined: Mon Jan 08, 2007 10:50 am
Location: Indiana
Top

Re: Brake controller

Postby matthewh » Fri Nov 09, 2018 3:09 pm

Make sure you run a fuse or circuit breaker when pulling your power, I typically run a 10ga wire to the battery, and prefer a breaker to a fuse, but it's up to you. I also like to run my ground right to the battery as well.

Same for the wire to the rear, run 10ga, to keep the wire size the same, from the controller, as well as the trailer. You'll find the brake wire and power are 10ga, the other 2 are 12ga.

2nd gens didn't come 100% wired in till late 95. Just wired my plow truck, and while it had the relay in the underhood box, didn't have the under dash wire/plug to tap into like the later models years did. After a couple hours trying to test wires, I just ran a wire to the back and spliced into the factory plug for the brake wire, and ran power/ground off my battery. Truck is a early 95 V10
'93 W350 5spd Getrag, 4.10 gears, 83k miles and counting, Mods: LPPP AKA Ma Dually
'54 Dodge M37 6.2/700R4/205, 5.89 gears, WC rear axle
matthewh
14mm rotor
 
Posts: 633
Joined: Mon Feb 18, 2013 3:07 am
Location: Boyne City Michigan
Top

Re: Brake controller

Postby justin.loehlein » Fri Nov 09, 2018 3:38 pm

this is a pretty complete writeup and includes links to parts that would be helpful
1990 D250, auto
1993 W350, 6BT, 5 speed
justin.loehlein
fuel screw!!!!
 
Posts: 30
Joined: Thu Feb 25, 2016 8:15 pm
Location: Richmond, VA
Top


Return to Electrical

Who is online

Users browsing this forum: No registered users and 1 guest

cron