problems remote starting when hot outside
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=114631
Printed Date: June 11, 2024 at 3:19 AM
Topic: problems remote starting when hot outside
Posted By: cpuguy06
Subject: problems remote starting when hot outside
Date Posted: June 22, 2009 at 9:59 PM
I have a Viper 771XV installed in my 2002 Nissan Maxima. I did the install myself about three years ago. Everything works fine when the vehicle is in the garage, but as soon as it sits out in the sun on a hot day the remote start will start the vehicle and immediately kill it...it will continue to do this for thirty seconds or until I stop the remote start sequence. I have tried remote starting with my key in the ignition to see if it is a problem with my 556w bypass module but the problem still exists even with my key in the ignition. Anybody have any other ideas to try? Things to check? Thanks!
Replies:
Posted By: tommy...
Date Posted: June 22, 2009 at 10:09 PM
Is it hooked to tach or tach-less??
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M.E.C.P & First-Class
Go slow and drink lots of water...Procrastinators' Unite...Tomorrow!
Posted By: cpuguy06
Date Posted: June 23, 2009 at 5:37 AM
The tach is hooked up, but I believe the jumper is set so it is tach-less.
Posted By: i am an idiot
Date Posted: June 23, 2009 at 6:40 AM
When you tried the key in the ignition, did you unhook the 556? I have never heard of this happening with heat, but they are infamous for not starting when extremely cold. If it starts with the key in ignition and the 556 disconnected, try repositioning the loop that goes around the ignition switch. I really have no clue if this bypass has a loop. If it does, try the above. If it does not have the loop, read my username and forgive me for taking up the space. ------------- Let's Go Brandon Brown. Congratulations on your first Xfinity Series Win. LGBFJB
Posted By: cpuguy06
Date Posted: June 23, 2009 at 9:37 AM
When I put the key in, I did not unhook the 556. I have had no problems with it starting when cold and I even used this when I lived in North Dakota for a year and had no problems with it. I wonder if heat is another temperature extreme which causes the 556 to quit working? But if I stick the key in and it still doesn't start...kinda leads me to believe I need to do a tach relearn. I'll have to double check my jumper to see if it's tach-less or not.
Posted By: i am an idiot
Date Posted: June 23, 2009 at 9:56 AM
If you insert the key and do not disable the 556, it is now seeing 2 keys. The only way to test this is to insert a key and disable the 556. If it starts OK in that situation, You can be pretty sure that the halo needs to be repositioned.
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Let's Go Brandon Brown. Congratulations on your first Xfinity Series Win. LGBFJB
Posted By: richl68
Date Posted: June 23, 2009 at 11:21 AM
So your saying that it starts fine when it is not hot outside right? so why are we concentrating on the 556uw bypass instead of a tach problem? Take out the jumper and set the the remote start to tach mode and program tach and see if it still has the same problem. Let us know what you find out about it.
Posted By: KarTuneMan
Date Posted: June 23, 2009 at 11:46 AM
I vote for a tach issue! The bypass don't care if it's hot outside...
Posted By: KPierson
Date Posted: June 23, 2009 at 12:57 PM
What happens if you start the car with the key when it is hot, then remote start it and remove the key? This will completely, 100% eliminate the bypass from being the problem. If the car continues to run with no issues then it is most likely a bypass issue. If the car shuts off and restarts it is an engine feedback issue (ie not getting tach or voltage or whatever you are using for feedback). ------------- Kevin Pierson
Posted By: cpuguy06
Date Posted: August 15, 2009 at 3:03 PM
KPierson wrote:
What happens if you start the car with the key when it is hot, then remote start it and remove the key?
This will completely, 100% eliminate the bypass from being the problem.
If the car continues to run with no issues then it is most likely a bypass issue.
If the car shuts off and restarts it is an engine feedback issue (ie not getting tach or voltage or whatever you are using for feedback).
I was finally able to get my car to exhibit this problem again. It started fine with the key, but not remotely...it wouldn't stay started. I got in and started the car with the key, double tapped the start button on the remote like I would normally do when I want the car to run, but take the keys with me. I turned the key to the off position to pull them out. At this point the car is still running. As soon as I pulled the keys out of the ignition there was a slight grinding sound and the car died. I take it my tach wire is messed up?
Posted By: t&t tech
Date Posted: August 15, 2009 at 4:56 PM
Yup that grinding sound is the starter engaging again even though the engine is running, which says that the tach is faulty, either it needs to be re-learnt or the wire needs replacing, try the relearn firstly it's the easier thing to start with. Also i'm not sure but doesn't that bypass connect to the keysense wire which would cause the bypass to drop out when you insert the key you use to start the vehicle, i'm almost certain it does, if this is the case then the bypass was ruled out a long time ago.
Posted By: richl68
Date Posted: August 16, 2009 at 1:04 PM
t&t tech wrote:
Yup that grinding sound is the starter engaging again even though the engine is running, which says that the tach is faulty, either it needs to be re-learnt or the wire needs replacing, try the relearn firstly it's the easier thing to start with. Also i'm not sure but doesn't that bypass connect to the keysense wire which would cause the bypass to drop out when you insert the key you use to start the vehicle, i'm almost certain it does, if this is the case then the bypass was ruled out a long time ago.
if its a 556uw bypass with the keybox the harness only has power, ground and the blue/white, i think 
Posted By: t&t tech
Date Posted: August 17, 2009 at 4:36 PM
I said i was almost certain, i didn't say i was sure that it had the keysense.
Posted By: JWorm
Date Posted: August 17, 2009 at 10:21 PM
The 556u has a keysense wire, but it rarely gets hooked up.
Posted By: richl68
Date Posted: August 24, 2009 at 9:28 AM
t&t tech wrote:
I said i was almost certain, i didn't say i was sure that it had the keysense.
i know thats why i said i think those are the only colors....its been a while since i used a 556uw 
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