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central locking, 93 isuzu fargo motor home

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=120381
Printed Date: July 03, 2025 at 11:55 AM


Topic: central locking, 93 isuzu fargo motor home

Posted By: claret
Subject: central locking, 93 isuzu fargo motor home
Date Posted: February 26, 2010 at 4:52 PM

hi i have a 1993 isuzu fargo motor home i have bought a alarm system with remote central locking its does have central locking which works with the key it opens drivers door and passenger door i have wired it all up but the doors dont lock or unlock there is 3 wires coming from the door 1 black wire/1 red with green stripe/ 1 yellow with green stripe does anybody have any info please

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claret



Replies:

Posted By: tommy...
Date Posted: February 26, 2010 at 9:41 PM
Do you have a DMM...? Is there a switch to unlock/lock...Or it only locks/unlocks per what the drivers door does...So there is no switch...But when you lock the drivers door,the passenger door locks and then the opposite...You might have to add an actuator to the drivers door...A little more info might negate that option...!

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M.E.C.P & First-Class
Go slow and drink lots of water...Procrastinators' Unite...Tomorrow!




Posted By: howie ll
Date Posted: February 27, 2010 at 2:32 AM
It either needs a motor in the driver's door, have you tried locking and unlocking from the passenger door, if that doesn't do all doors then a motor needed. Or it could be a single wire control system, neg. to unlock and open circuit to lock.




Posted By: claret
Date Posted: February 27, 2010 at 3:14 AM
hi the central locking will open both doors   drivers and passengers door if i put the key in passenger door it will only lock the passenger door

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claret




Posted By: howie ll
Date Posted: February 27, 2010 at 12:31 PM
What does your first sentence mean? How does the central locking work? From the driver's door only? From a switch?




Posted By: tommy...
Date Posted: February 27, 2010 at 12:39 PM

 will have to add an actuator in drivers door to control both doors...A little more complicated...but you can't install the unit like normal keyless entry's are done...Actuators are not expensive...but are moderately labor intensive...Basically you will install the actuator near the lock/unlock rod on the inside of the door...Then attach attach the rod provided with the actuator to the rod in the door...Then you will have to wire up relay's... then attach the lock/unlock wires from the keyless unit to the relays...which will tell the actuator which way to move...which either locks or unlocks the doors...Here is the diagram for the relays...

posted_image Actuators / Reverse Polarity
This is practically identical to the 5 wire alternating 12V(+) system above. The only difference is there's no switch! Both motor legs rest at ground at the relays. To lock or unlock the vehicle, polarity is changed on one motor leg.
 
posted_image



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M.E.C.P & First-Class
Go slow and drink lots of water...Procrastinators' Unite...Tomorrow!




Posted By: tommy...
Date Posted: February 27, 2010 at 12:45 PM
posted_imageHere's a pic of a common actuator...The mounting and install of the rod might be the most diffucult part...Might get it on first try...Just to remember what position the factory rod is in(up/down-lock/unlock) when attaching the actuator rod...You can use a drill battery 12-14.4 volts to check the actuator once installed and see if it is properly moving(locking/unlocking) when voltage is applied(so you dont have to wire up the keyless and run wires into the door to check)

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M.E.C.P & First-Class
Go slow and drink lots of water...Procrastinators' Unite...Tomorrow!




Posted By: claret
Date Posted: February 27, 2010 at 1:16 PM
hi all thanks for your help i will try that i have seen them for sale on ebay posted_image posted_image posted_image

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claret




Posted By: tommy...
Date Posted: February 27, 2010 at 1:30 PM
Dont forget the relays and something to cut metal if need be(aviation snips)...Also something to drill holes(i use self-tapping screws...then use a larger screw(usually the ones supplied with the actuator) to mount the actuator...Might have to install the back-strap...Just be prepared...so much easier...and surely will have another project to use unwanted/unused stuff...!

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M.E.C.P & First-Class
Go slow and drink lots of water...Procrastinators' Unite...Tomorrow!




Posted By: claret
Date Posted: February 27, 2010 at 2:45 PM
hitommy how do i wire the relays

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claret




Posted By: tommy...
Date Posted: February 27, 2010 at 7:50 PM

................................................^ (*hint*.............see above for relay wiring...did you read the posts...maybe re-read a couple times if you missed that...!) Or the other page...posted_image



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M.E.C.P & First-Class
Go slow and drink lots of water...Procrastinators' Unite...Tomorrow!




Posted By: howie ll
Date Posted: February 28, 2010 at 4:30 AM
Perhaps this will help, what make of alarm?




Posted By: howie ll
Date Posted: February 28, 2010 at 7:01 AM
Tommy, empty your in box




Posted By: tommy...
Date Posted: February 28, 2010 at 7:15 AM
empty...

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M.E.C.P & First-Class
Go slow and drink lots of water...Procrastinators' Unite...Tomorrow!




Posted By: i am an idiot
Date Posted: February 28, 2010 at 7:55 AM




Posted By: t&t tech
Date Posted: February 28, 2010 at 8:06 AM
tommy... wrote:

 .Here is the diagram for the relays...

posted_image Actuators / Reverse Polarity
This is practically identical to the 5 wire alternating 12V(+) system above. The only difference is there's no switch! Both motor legs rest at ground at the relays. To lock or unlock the vehicle, polarity is changed on one motor leg.
 
posted_image




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COMMIT YOUR WAY TO JEHOVAH AND HE WILL ACT IN YOUR BEHALF. PSALMS 37:5




Posted By: claret
Date Posted: February 28, 2010 at 4:32 PM
hi thanks for the info the alarm i bought is called cyclone i give him my motor home details as per isuzu motor home 1992 i he says it a postive output i have tested it and its a negative output he says its the same wire ing as a isuzu trooper 4 door 4x4 but i have looked at the wireing its not the same i have ordered the parts and see how it goes thanks all i will let you know how it goes

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claret




Posted By: howie ll
Date Posted: February 28, 2010 at 5:01 PM
It's an unknown brand, probably won't work. What's pos. or neg.? wish you would explain yourself a bit better, you don't make much sense. The trooper had neg going going locks without the need for a solenoid. The smaller version, sold as a Vauxhall/Opel Frontera required an actuator, I know I did enough back in the day.
P.S. Motor = solenoid =actuator.
Could you print a wiring diagramme for the alarm?




Posted By: claret
Date Posted: February 28, 2010 at 6:09 PM
hi iam going of what the bloke told me when i bought the alarm he said nearly all isuzas are postive lock i have ordered the 2 relays and actuator and try it and see if it works i will try and scan the alarm wiring and post it on here thanks for info

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claret




Posted By: howie ll
Date Posted: March 01, 2010 at 1:19 AM
Never known an Asian vehicle even when assembled here in the UK to have ANYTHING but neg. locking or add an actuator.
Suggest you take it to an installation expert and let them either install it or have a good laugh. Please try and post the wiring diagramme for the unit.





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