Autostart 2300 TW Tech Question
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=48810
Printed Date: July 13, 2025 at 6:07 PM
Topic: Autostart 2300 TW Tech Question
Posted By: Sierra2700
Subject: Autostart 2300 TW Tech Question
Date Posted: January 28, 2005 at 12:43 PM
Installed a Autostart 2300 Two way, works fine except it doesn't usually start on the first try. It usually fails to start then try's again then starts fine. Once in a while it will start on the first attempt. So heres what I did to trouble shoot -Nissan sentra has 2 Crank wires so I hooked up the purple wire from Autostart unit to Starter 1, then hooked up 5th relay from autostart unit (onboard relay) to the second starter wire of vehicle. I tried to swap them, hooking up 5th relay to the 1st starter wire and second starter to the normal wire but would not crank. -Is this a problem with the Tach adjustment that should be done? or is this a problem with the starter wires/5th onboard relay? The second starter wire should not require a relay correct? Because it has a onboard relay?
Replies:
Posted By: Velocity Motors
Date Posted: January 28, 2005 at 12:49 PM
Did you change the jumper on the side of the CPU to 2nd CRANK ? From the sounds of it you did, but check to make sure that it's on 2nd CRANK. Otherwise, try relearning the tach or switch the tach wire location to another wire for a better signal.
-------------
Jeff
Velocity Custom Home Theater
Mobile Audio/Video Specialist
Morden, Manitoba CANADA
Posted By: Sierra2700
Date Posted: January 28, 2005 at 1:04 PM
Yep switched the jumper to the 2nd crank.
Posted By: extreme1
Date Posted: January 28, 2005 at 7:28 PM
if swapping green and purple wires resulted in a no crank situation then one of those 2 wires is not coming on properly.
When the jumper is on 2nd crank both wires energize and power down at exactly the same time.
I would check your power wires make sure both have 12V and then both green and purple to make sure they're going to 12V during the crank cycle.
-------------
Shaughn Murley
Install Manager, Dealer Services
Visions Electronics
Red Deer, Alberta
Posted By: Sierra2700
Date Posted: January 29, 2005 at 1:34 AM
well, as far as the 12volt goes, there is only 1 12 volt wire in the harness, should I possibly try to get the other 12volt to the battery lead? Basically I have both 12volt wires (coming off the autostart)connected to a single 12volt hot wire in the ignition harness. And since its a nissan, i figured they have 2 wires, 1 main for normal use, and the second one is for extra help during cold weather situaitons.
Posted By: Sierra2700
Date Posted: January 31, 2005 at 1:01 PM
Ok i swapped brains to check to see what would happen, same problem. Can someone double check my wiring (and yes i tested all wires) 12V-WHITE/ Red Ignition-BLACK/ red Accessory-White Starter-BLACK/ White Starter2-BLACK / YELLOW
Does anyone else think I could need to do something else with the above wires? I tested all the above wires and all test true. I have the jumper on the correct "crank" pin. I even took 12volt straight from battery to check to make sure I was getting enough juice. I then tested both crank wires, both tested about 9-10 volts during crank of vehicle.
Posted By: kgerry
Date Posted: January 31, 2005 at 1:17 PM
is it possible you just need to program for a bit longer crank time? i've had a few older throttle body units like that, that wont start on the first attempt but fire up right away on the second, and programming for a slightly longer crank duration solves the problem every time.....
-------------
Kevin Gerry
Certified Electronics Technician
MECP First Class Installer
Owner/Installer
Classic Car Audio
since 1979
Posted By: Velocity Motors
Date Posted: January 31, 2005 at 1:23 PM
What year Sentra is this ?
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Jeff
Velocity Custom Home Theater
Mobile Audio/Video Specialist
Morden, Manitoba CANADA
Posted By: Sierra2700
Date Posted: January 31, 2005 at 1:34 PM
2002 Sentra. How do you program it for a longer crank time? Using manual tach mode adjustment? Edit: Actually i dont think i can adjust the tach mode because the 1 way units only allow you to program using Auto tach mode and manual, but doesnt allow you to adjust it, the 2 ways allow yout o adjust it.
Posted By: Velocity Motors
Date Posted: January 31, 2005 at 1:43 PM
There an additional ACC wire that MAY need to be powered up, but seeing that is starts the 2nd time, it leads me to believe that it's not a necessary wire, but you never know. What you need to do is wire up a relay like this: https://www.velocitymotorsport.com/images/install_notes/2nd_accessory_relay.jpg Try this out and see if this helps. ------------- Jeff
Velocity Custom Home Theater
Mobile Audio/Video Specialist
Morden, Manitoba CANADA
Posted By: Velocity Motors
Date Posted: January 31, 2005 at 1:43 PM
Also, changinf tach locations may help as well.
-------------
Jeff
Velocity Custom Home Theater
Mobile Audio/Video Specialist
Morden, Manitoba CANADA
Posted By: Sierra2700
Date Posted: January 31, 2005 at 2:04 PM
Do I have to power up both 86 and 87 with seperate fused wires 12v wires or can I use a single fused 12 volt wire from the harness? Also is there a way to test if powering up accessory 2 is the solution with out a relay temporarily? Like hooking up 12volts straight from battery to the second accessory wire?
Posted By: kgerry
Date Posted: January 31, 2005 at 2:14 PM
BTW, changing the crank time has nothing to do with tach... it just controls how long the RS unit cranks for... this is separate from learning tach..... ------------- Kevin Gerry
Certified Electronics Technician
MECP First Class Installer
Owner/Installer
Classic Car Audio
since 1979
Posted By: Sierra2700
Date Posted: January 31, 2005 at 2:40 PM
Kgerry, do you know if it is possible to extend the crank time on "AUTOSTART" Units?
Posted By: Velocity Motors
Date Posted: January 31, 2005 at 3:12 PM
Sierra2700 wrote:
Do I have to power up both 86 and 87 with seperate fused wires 12v wires or can I use a single fused 12 volt wire from the harness? Also is there a way to test if powering up accessory 2 is the solution with out a relay temporarily? Like hooking up 12volts straight from battery to the second accessory wire?
One fuse for the two pins is OK. ------------- Jeff
Velocity Custom Home Theater
Mobile Audio/Video Specialist
Morden, Manitoba CANADA
Posted By: kgerry
Date Posted: January 31, 2005 at 3:49 PM
the older ones you could but it doesnt look like you can on this series ( at least i'm looking at a 2500TW manual and you cant on it )....
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Kevin Gerry
Certified Electronics Technician
MECP First Class Installer
Owner/Installer
Classic Car Audio
since 1979
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