Should they be fused?
Should they be fused? Should these wires be fused?
The hot wires to the relays activating the FANS and ECM? I suspect no...but not sure.
The hot wires to the relays activating the FANS and ECM? I suspect no...but not sure.
Last edited by badazz81z28; Dec 23, 2012 at 07:31 PM.
The fan schematic is in the first post, in this link, and has the fuse size.
https://ls1tech.com/forums/conversio...chematics.html
https://ls1tech.com/forums/conversio...chematics.html
I'm having a hard time reading that diagram...You are both referring to the relay activating power and not the main power right? These 12V wires are for activating the solenoids, not powering the components. Still say they need to be fused?
I took a look at the diagrams again. Its a good thing...Looks like the Fan Relays are wired always HOT with a 10 amp fuse.
I didn't see anything for the ignition switch...The power to the relay to turn the ECM on. This 12V wire powers the relay to ground. It does not power the ECM
I didn't see anything for the ignition switch...The power to the relay to turn the ECM on. This 12V wire powers the relay to ground. It does not power the ECM
I took a look at the diagrams again. Its a good thing...Looks like the Fan Relays are wired always HOT with a 10 amp fuse.
I didn't see anything for the ignition switch...The power to the relay to turn the ECM on. This 12V wire powers the relay to ground. It does not power the ECM
I didn't see anything for the ignition switch...The power to the relay to turn the ECM on. This 12V wire powers the relay to ground. It does not power the ECM
Trending Topics
I think I will fuse it anyways, but according to that schematic it doesn't looked fused. In my harness that relay I keep referring to as the ECM is actually acting as the Power-train ignition in the PSI harness to start the whole system.
LS1 Tech Stories
The Best V8 Stories One Small Block at Time
6 Common C5 Corvette Failures and What's Involved In Repairing Them
Pouria Savadkouei
Retro Modern Bandit Pontiac Trans AM Comes With Burt Reynolds' Autograph
Verdad Gallardo
Top 10 Greatest Cadillac V Series Performance Models Ever, Ranked
Pouria Savadkouei
Top 10 Most Powerful Chevy Trucks Ever Made!
Hennessey's New Supercharged Silverado ZR2 Has 700 HP
Verdad Gallardo
Coachbuilt N2A Anteros Is an LS2-Powered C6 Corvette In Italian Clothes
Verdad Gallardo
Awesome K5 Blazer Restomod Comes With C7 Corvette Power
Verdad Gallardo
10 Camaros You Should Never Buy
10 LS Engine Myths That Refuse to Die
Verdad Gallardo
The wire coming from the pcm is just a ground trigger
It does not get a fuse.
The fuse is on the hot activation side of the Relay... its part of a group of ignition on hot wires
The fan master power has a fuse on the always hot from battery power That connects to pin 87 of the relay
It does not get a fuse.
The fuse is on the hot activation side of the Relay... its part of a group of ignition on hot wires
The fan master power has a fuse on the always hot from battery power That connects to pin 87 of the relay
The wire coming from the pcm is just a ground trigger
It does not get a fuse.
The fuse is on the hot activation side of the Relay... its part of a group of ignition on hot wires
The fan master power has a fuse on the always hot from battery power That connects to pin 87 of the relay
It does not get a fuse.
The fuse is on the hot activation side of the Relay... its part of a group of ignition on hot wires
The fan master power has a fuse on the always hot from battery power That connects to pin 87 of the relay
I'm not sure of how your harness is built, but it sounds like you are either saying it is built incorrect, or they did t give any instructions for termination...
Add a fuse in-between your ignition hot 12v activation wire and the relay, and use the pcm to trigger the ground side of the coil on the relay(pin 85 or 86)
Pin 30 is connected to the chassis ground, and pin 87 is connected to a Fuse and your main power source for the fans.
Add a fuse in-between your ignition hot 12v activation wire and the relay, and use the pcm to trigger the ground side of the coil on the relay(pin 85 or 86)
Pin 30 is connected to the chassis ground, and pin 87 is connected to a Fuse and your main power source for the fans.
Last edited by soundengineer; Dec 27, 2012 at 05:20 PM.
Also, you can make a main junction point for all of your ground activated relays so that you can use one fuse, and branch off to all your relays.
But that only works for relays that are ground activated.
But that only works for relays that are ground activated.
TECH Junkie
Joined: Dec 2005
Posts: 3,092
Likes: 11
I'm not sure of how your harness is built, but it sounds like you are either saying it is built incorrect, or they did t give any instructions for termination...
Add a fuse in-between your ignition hot 12v activation wire and the relay, and use the pcm to trigger the ground side of the coil on the relay(pin 85 or 86)
Pin 30 is connected to the chassis ground, and pin 87 is connected to a Duse and your main power source for the fans.
Add a fuse in-between your ignition hot 12v activation wire and the relay, and use the pcm to trigger the ground side of the coil on the relay(pin 85 or 86)
Pin 30 is connected to the chassis ground, and pin 87 is connected to a Duse and your main power source for the fans.