cutting the starter wire
Printed From: the12volt.com
Forum Name: Car Security and Convenience
Forum Discription: Car Alarms, Keyless Entries, Remote Starters, Immobilizer Bypasses, Sensors, Door Locks, Window Modules, Heated Mirrors, Heated Seats, etc.
URL: https://www.the12volt.com/installbay/forum_posts.asp?tid=120745
Printed Date: May 17, 2025 at 11:27 PM
Topic: cutting the starter wire
Posted By: TROC4434
Subject: cutting the starter wire
Date Posted: March 15, 2010 at 9:49 PM
when doing a remote start, how many of you guys cut the starter wire for starter interrupt? Have you ever had problems after doing the install like this?
Replies:
Posted By: sneakycyber
Date Posted: March 15, 2010 at 11:04 PM
Its an optional feature for me. But no I have not had any problems arise because I cut the wire.
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Posted By: frozenuts
Date Posted: March 15, 2010 at 11:46 PM
Literally hundreds of alarms, never had an issue. Totally solder and stuff.
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all bad things come in moderation. do not shop at fry's. Get your own log in Omar.
Posted By: blanx218
Date Posted: March 16, 2010 at 1:52 AM
if wired correctly cutting the starter wire will give you an anti-grind when the remote start is active preventing damage to the starter of the car
Posted By: tedmond
Date Posted: March 16, 2010 at 7:11 AM
cutting the start wire for starter kill, antigrind or both is nice to have for many reason. as mentioned above, you dont haev to worryy about grinding the starter if you already have it started already.
an extra security measure. and yes solder everything ------------- Ted
2nd Year Tier 1 Medical School
Still installing as a hobby...pays for groceries
Compustar Expert
Posted By: Thack79
Date Posted: March 16, 2010 at 7:44 AM
Had many experiences where people throw thier keys around and break there remote in the process, then cant stop the alarm (or start the car). In occurances where i do use the start interupt, electrically i havent had a problem.
Posted By: TROC4434
Date Posted: March 16, 2010 at 9:06 AM
thats good to hear, ive heard some istaller dont like cutting starter wire. Just wanted to know how you guys did yours. thanks for all the feedback.
Posted By: KPierson
Date Posted: March 16, 2010 at 10:08 AM
If you don't solder the wires I wouldn't recomend cutting the wire. Crimping the heavy gauge wiring or even worse using T-Taps or other methods have a high likely hood of failure over the course of the vehicle. I've only encountered one issue when soldering the starter wire - the original installer chose a terrible place to cut the wire and then did a terrible job soldering the wire back together. Luckily, it was the key side so the remote start still worked, otherwise the customer wouldn't have been able to start the car! ------------- Kevin Pierson
Posted By: TROC4434
Date Posted: March 16, 2010 at 10:24 AM
KPierson wrote:
If you don't solder the wires I wouldn't recomend cutting the wire. Crimping the heavy gauge wiring or even worse using T-Taps or other methods have a high likely hood of failure over the course of the vehicle.
I've only encountered one issue when soldering the starter wire - the original installer chose a terrible place to cut the wire and then did a terrible job soldering the wire back together. Luckily, it was the key side so the remote start still worked, otherwise the customer wouldn't have been able to start the car!
I solder all my wires,no problem there. question, is there one type of solder better then others? I just use a cheap 25watt one now. do I need a better one when doing the thicker starter wire? how far from the key side vs car side do you cut( a few inches)?
Posted By: KPierson
Date Posted: March 16, 2010 at 10:28 AM
I wouldn't use a 25 watt iron to do a starter wire, but I bet it could be done. When working with any thicker wires in the car I use a Craftsman soldering gun. The place you cut it doesn't really matter as long as you can access the cut and it's not so close to a harness that you can't splice both sides back together. The guy in the car I had to fix cut the starter wire rigth were it comes down from the column. I had to drop the bottom of the column to get to the wire - he didn't drop the bottom of the column and the results were the connection only lasted 2 weeks. ------------- Kevin Pierson
Posted By: TROC4434
Date Posted: March 16, 2010 at 10:45 AM
KPierson wrote:
I wouldn't use a 25 watt iron to do a starter wire, but I bet it could be done. When working with any thicker wires in the car I use a Craftsman soldering gun.
The place you cut it doesn't really matter as long as you can access the cut and it's not so close to a harness that you can't splice both sides back together.
The guy in the car I had to fix cut the starter wire rigth were it comes down from the column. I had to drop the bottom of the column to get to the wire - he didn't drop the bottom of the column and the results were the connection only lasted 2 weeks.
okay, what solder gun to get for a okay price? which crafstman solder gun? what size weight solder?
Posted By: KPierson
Date Posted: March 16, 2010 at 10:56 AM
I think this is the one I have: https://www.sears.com/shc/s/p_10153_12605_00954046000P?keyword=soldering+gun I've had mine for probably 10 years now though so it may not be exactly the same. I use the same solder for everything - it's a 60/40 solder that is fairly thin - not sure on the diamerter of it. ------------- Kevin Pierson
Posted By: TROC4434
Date Posted: March 16, 2010 at 1:33 PM
I just went to sear and bought that one, 230/1500 watt heavy duty soldering gun part
954046. so the 60/40 solder is best for alarm installs?
Posted By: TROC4434
Date Posted: March 16, 2010 at 4:40 PM
hey does the hood pin switch ahve to be mounted under the hood to metal to activate and deactivate?
Posted By: i am an idiot
Date Posted: March 16, 2010 at 4:41 PM
Yes the chassis of the hood switch needs to be mounted to the chassis of the vehicle.
Posted By: TROC4434
Date Posted: March 16, 2010 at 4:57 PM
I have a 300c 2005, I think at the front of the car it hard plastic I think, i will check. any other goo spots for this car for the hood pin? does the star washer mount to the body of the car then the nut on top?
Posted By: t&t tech
Date Posted: March 16, 2010 at 6:04 PM
The hood switch doesn't necessarily have to be mounted to the chassis for it to work, i learned a trick from a fellow twelve volter, if you have to mount on plastic according to the switch you are using when you depress it there should be two parts the bottom part being seperated from the upper part, simply ground the upper part with a ring terminal around the switch crimped on to a wire where the other end goes to ground, the the bottom of the switch goes to the hood trigger wire of the alarm, there are many different types of pin switches if you gave the info on what type i may be able to help you better!
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COMMIT YOUR WAY TO JEHOVAH AND HE WILL ACT IN YOUR BEHALF.
PSALMS 37:5
Posted By: t&t tech
Date Posted: March 16, 2010 at 6:06 PM
After re-reading your post, i think you have the dei pin switch, this is easy to mount on plastic, ring terminal to ground at the top (between both lock washers), and the other end to the alarm trigger wire, as i described in my previous post! ------------- COMMIT YOUR WAY TO JEHOVAH AND HE WILL ACT IN YOUR BEHALF.
PSALMS 37:5
Posted By: jeremytravis
Date Posted: March 16, 2010 at 6:26 PM
If you do cut the starter wire and add a starter kill relay, just make sure you know how to override the alarm just in case you can't use the remote,on Viper alarms you use the valet button, with the key in the on position press the valet button 1 time within 15 seconds. After 5 seconds it should disarm the alarm, default is set to 1 (but can be changed 1-5)
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**ADVANCED MECP CERTIFIED
Posted By: TROC4434
Date Posted: March 16, 2010 at 10:02 PM
I check the front it metal, tested it with a magnet it stuck so got to be metal.
Posted By: tedmond
Date Posted: March 17, 2010 at 6:33 AM
mare sure when you bolt up the hood pin, sand down the metal so its bare metal. just a tip.
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Ted
2nd Year Tier 1 Medical School
Still installing as a hobby...pays for groceries
Compustar Expert
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