door lock problem 2005 forenza
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=77409
Printed Date: July 06, 2025 at 2:10 AM
Topic: door lock problem 2005 forenza
Posted By: 4xwc24
Subject: door lock problem 2005 forenza
Date Posted: May 07, 2006 at 6:26 PM
I have a 2005 forenza and my problem is I cannot lock the car with the remote but i can unlock it with the remote . I have hooked all the wires up (the hood pin switch wire ,the accessory wire ,ign wire ,both door lock wires,trunk release,horn wire) everything works except the lock on the remote. i can remote start the car , unlock the car , unlock the trunk, i just can't lock the car. the alarm is a direct tech 927 their tech support said this car does not need relays but when i'm sitting in the car and i press the lock button on the remote and the doors are already locked i can hear the doors trying to lock. does this mean i need relays or do i have the wrong wires very confused appreciate any help i can get the current wires i'm using for lock is white and the unlock is PURPLE / white
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tony stewart
Replies:
Posted By: mo12v
Date Posted: May 07, 2006 at 8:47 PM
I have:
Lock = lt. GREEN / WHITE
Unlock = white or yellow
Disarm = dk. blue or lt. green
All @ Driver Door Harness ------------- MO
Don't Learn from Others Mistakes
You Might Be the One That Knows.
Posted By: 4xwc24
Date Posted: May 07, 2006 at 10:04 PM
i'm sorry you're right the lock wire i have the alarm attached to is a lt.GREEN / WHITE and the unlock wire is white but do i need a relay because i bought some five pin relays
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tony stewart
Posted By: mo12v
Date Posted: May 08, 2006 at 7:05 AM
Best way to check is to touch a GROUND wire to Lock or Unlock wire to see if both will work. If so & your 927 does NOT then you will need 2 Relays.
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MO
Don't Learn from Others Mistakes
You Might Be the One That Knows.
Posted By: 4xwc24
Date Posted: May 08, 2006 at 8:46 PM
how is the best way to hook up the relays do i need to reverse polarity
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tony stewart
Posted By: mo12v
Date Posted: May 08, 2006 at 9:30 PM
2 SPDT Relays ( Single Pole Double Throw ): Relay 1 LOCK:
PIN 87 = lt. GREEN / WHITE wire
PIN 87a = XX
PIN 30 = GROUND
PIN 85 = Negative Lock Output from 927
PIN 86 = Constant 12 volt ( + ) Relay 2 UNLOCK:
PIN 87 = white or yellow
PIN 87a = XX
PIN 30 = GROUND
PIN 85 = Negative UNLock Output from 927
PIN 86 = Constant 12 volt ( + ) ------------- MO
Don't Learn from Others Mistakes
You Might Be the One That Knows.
Posted By: 4xwc24
Date Posted: May 13, 2006 at 9:23 AM
I hooked the relays up just like you said and that caused the car to lock with the remote but not unlock does this mean i need to reverse the polarity or is there some other way to hook up the relays ------------- tony stewart
Posted By: mo12v
Date Posted: May 13, 2006 at 2:07 PM
Did you verify the UNLOCK wire in the Vehicle??
Do you have Output from the Relay?
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MO
Don't Learn from Others Mistakes
You Might Be the One That Knows.
Posted By: 4xwc24
Date Posted: May 13, 2006 at 4:11 PM
if you mean grounding the white wire in the car to see if it would unlock then yes if you mean does the relay make a clicking noise then yes is that what you mean if so then what can i do now thanx again for all of your help ------------- tony stewart
Posted By: mo12v
Date Posted: May 13, 2006 at 10:05 PM
Relay should make noise and you also should have NEGATIVE Output on PIN 87.
Be sure you are using SPDT Relays ( Single Pole Double Throw )
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MO
Don't Learn from Others Mistakes
You Might Be the One That Knows.
Posted By: 4xwc24
Date Posted: May 14, 2006 at 9:53 PM
how do i know if the relay is a spdt and do i test pin 87 for neg output ------------- tony stewart
Posted By: mo12v
Date Posted: May 15, 2006 at 7:58 AM
With Relay not activated :
PIN 30 & PIN 87a = connected.......PIN 87 has nothing
With Relay activated:
PIN 30 & 87 = connected.........PIN 87a has nothing
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MO
Don't Learn from Others Mistakes
You Might Be the One That Knows.
Posted By: 4xwc24
Date Posted: May 15, 2006 at 2:47 PM
what do you mean activated do you mean hooked up to the alarm and remote button preesed relays are spdt i really do appreciate all the help you are giving me ------------- tony stewart
Posted By: mo12v
Date Posted: May 15, 2006 at 3:31 PM
Activation:
When PIN 86 has 12 Volts and PIN 85 has Ground PIN 30 & PIN 87a break contact and PIN 30 & PIN 87 connect.
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MO
Don't Learn from Others Mistakes
You Might Be the One That Knows.
Posted By: 4xwc24
Date Posted: May 15, 2006 at 8:07 PM
sorry to sound stupid but what exactly do you mean does it have something to do with a volt meter
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tony stewart
Posted By: mo12v
Date Posted: May 15, 2006 at 9:10 PM
Read: https://www.the12volt.com/relays/relays.asp ------------- MO
Don't Learn from Others Mistakes
You Might Be the One That Knows.
Posted By: 4xwc24
Date Posted: May 15, 2006 at 11:25 PM
so while the relays hooked up i shouldn't have anything on pin 87 but when i activate it i shouldn't have anything on pin 87a and pin 30 and pin 87 should be connected but what if its not what would be the reason it doesn't
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tony stewart
Posted By: mo12v
Date Posted: May 16, 2006 at 8:44 AM
If you have Connection on 87a & 87 at the same time, then you do NOT have a SPDT Relay or the Relay is Burnt........
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MO
Don't Learn from Others Mistakes
You Might Be the One That Knows.
Posted By: 4xwc24
Date Posted: May 16, 2006 at 12:05 PM
thanx for all your help because of you i figured it out and the alarm works fine now thanx again ------------- tony stewart
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