User Tag List

Reply
 
Thread Tools Rate Thread Display Modes
Old 01-24-2020, 02:01 PM #1
judoant's Avatar
judoant judoant is offline
Member
 
Join Date: Aug 2005
Location: Lexington, KY
Posts: 359
judoant is on a distinguished road
judoant judoant is offline
Member
judoant's Avatar
 
Join Date: Aug 2005
Location: Lexington, KY
Posts: 359
judoant is on a distinguished road
Accessory wiring

I am in the processes of some rock light wiring and plan to make my own harness. I have a question though and I have found conflicting information.

Does the power for the switch need to be fused separately from the power for the lights? I want the ability to opperate the lights with the truck off so I plan to draw power for the switch directly from the battery.

The top attached diagram show a 3 amp fuse for the switch and a 20 amp fuse for the lights. I know the lights will not need that large of a fuse.

The bottom picture and the harness I currently have for my LED bar only has 1 fuse.
Attached Images
Accessory wiring-screen-shot-2020-01-24-12-52-36-pm-png  Accessory wiring-screen-shot-2020-01-24-12-52-16-pm-png 
__________________
99 4 Runner Limited. 3" Toytec Ultimate lift with SuperFlex rear coils. 231mm Tundra calipers. Rear diff breather extension. 285/75-16 Nitto Trail Grapplers. Savage full skids & sliders w/ kickout. ISR mod. LED gauges. Shrockworks front plate bumper w/ loop. 4xInnovations rear plate bumper.

Last edited by judoant; 01-24-2020 at 02:16 PM.
judoant is offline   Reply With QuoteReply With Quote
Old 01-24-2020, 02:34 PM #2
Wraytex Wraytex is offline
Junior Member
 
Join Date: Apr 2018
Location: San Antonio
Posts: 9
Wraytex is on a distinguished road
Wraytex Wraytex is offline
Junior Member
 
Join Date: Apr 2018
Location: San Antonio
Posts: 9
Wraytex is on a distinguished road
I would fuse the switch/relay circuit separate with a low value fuse as it is a separate circuit that could have a relay coil defect such as shorted internally. Just run both circuits off a constant hot that has the capacity for your amp draw and you should be fine. Is your switch lighted? When i got my 2000, there were two aux lighting circuits powered direct from the battery and the led's on the switches themselves ran 24/7. I rewired them to an accessory hot so they wouldn't run all the time. Which I know is opposite what you are trying to do here.
Wraytex is offline   Reply With QuoteReply With Quote
Old 01-24-2020, 02:43 PM #3
TheDurk's Avatar
TheDurk TheDurk is online now
Elite Member
 
Join Date: Nov 2006
Location: New Jersey
Posts: 7,273
TheDurk is a jewel in the rough TheDurk is a jewel in the rough TheDurk is a jewel in the rough TheDurk is a jewel in the rough
TheDurk TheDurk is online now
Elite Member
TheDurk's Avatar
 
Join Date: Nov 2006
Location: New Jersey
Posts: 7,273
TheDurk is a jewel in the rough TheDurk is a jewel in the rough TheDurk is a jewel in the rough TheDurk is a jewel in the rough
The lower circuit only has one fuse, because the fuse is upstream from both the switch and the load. One fuse covers both circuits.

The upper has a separate fuse, which is sort of belt and suspenders. If the tap is on a vehicle circuit that is fused, it is optional. I don't fuse switches which are tapped to fused circuits, but in theory, the low value fuse provides a more precise level of protection. If it's pre-wired into a harness, use it.
__________________
'99 4Runner SR5 5spd 3.4L V6 4WD(U.S), original '99 Talls in front, OME 906s in back, Hella fogs, Trekmaster shocks in front, Billy in back, no running boards, FIAMM horns, Alpine sound, Michelin LTX M/S2's, owned since new.
'97 HiLux SW4 5spd 4WD(Japan model bought in Brazil assembled in Argentina, very close to a 3.0 4Runner/Surf)
'71 FordWillys Jeep CJ5 (with straight six Ford Maverick 3.0 liter engine--lives in the mountains north of Sao Paulo Brazil)
My Backyard Frame Swap

Last edited by TheDurk; 01-24-2020 at 02:50 PM.
TheDurk is online now   Reply With QuoteReply With Quote
Reply

Tags
fuse , lights , power , switch , wiring

Thread Tools
Display Modes Rate This Thread
Rate This Thread:

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is On

Forum Jump

Similar Threads
Thread Thread Starter Forum Replies Last Post
Wiring air on board switch to Amazon wiring harness. Btmannin Engines / Suspension / Wheels / Tires / Audio / Accessories 3 06-18-2018 03:33 PM
Going to Moab For A Few Weeks in the summer, Accessory Wiring DanielMaat89 4th Gen T4Rs 0 12-03-2015 02:26 AM
Rear view mirror/accessory wiring snowjay Engines / Suspension / Wheels / Tires / Audio / Accessories 14 02-22-2004 08:02 PM

Powered by vBadvanced CMPS v3.2.2

All times are GMT -4. The time now is 07:25 PM.

Powered by vBulletin® Version 3.8.11
Copyright ©2000 - 2020, vBulletin Solutions Inc.
Search Engine Optimisation provided by DragonByte SEO (Pro) - vBulletin Mods & Addons Copyright © 2020 DragonByte Technologies Ltd.
Feedback Buttons provided by Advanced Post Thanks / Like (Lite) - vBulletin Mods & Addons Copyright © 2020 DragonByte Technologies Ltd.
User Alert System provided by Advanced User Tagging (Lite) - vBulletin Mods & Addons Copyright © 2020 DragonByte Technologies Ltd.
***This site is an unofficial Toyota site, and is not officially endorsed, supported, authorized by or affiliated with Toyota. All company, product, or service names references in this web site are used for identification purposes only and may be trademarks of their respective owners. The Toyota name, marks, designs and logos, as well as Toyota model names, are registered trademarks of Toyota Motor Corporation***Ad Management plugin by RedTyger
 
Copyright © 2020