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huatai remote keyless entry system

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=92337
Printed Date: May 12, 2025 at 1:26 AM


Topic: huatai remote keyless entry system

Posted By: coolpr
Subject: huatai remote keyless entry system
Date Posted: March 31, 2007 at 2:10 PM

I just got this Keyless entry system from EBay for my 91 Toyota Celica ST. The instructions  were not clear on which wires from the module need to go to the Power lock motors.  The motors have two wires one green and the other Blue any idea would help..thanks in advance..

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ETO



Replies:

Posted By: KarTuneMan
Date Posted: March 31, 2007 at 2:58 PM

I doubt this unit has built in relays, so you'll need to wire some up.

 MODEL YEAR(S)
 CELICA  1990 -1993
 KEY T-HARNESS IMMOBILIZER
  N/A   N/A   N/A
 PART  COLOR LOCATION
 12 VOLT CONSTANT  WHITE (+) or BLACK RED (+)   IGNITION SWITCH HARNESS
 STARTER BLACK/ WHITE (+)  IGNITION SWITCH HARNESS
 STARTER 2  
 IGNITION 1 BLUE/RED (+) IGNITION SWITCH HARNESS
 IGNITION 2 BLACK/ ORANGE (+) IGNITION SWITCH HARNESS
 IGNITION 3 N/A  
 ACCESSORY /HEATER BLOWER 1 GRAY (+)  IGNITION SWITCH HARNESS
 ACCESSORY /HEATER BLOWER 2 N/A  
 KEYSENSE N/A  
 PARKING LIGHTS ( - ) LIGHT GREEN (-)  @ STEERING COLUMN HARNESS
 PARKING LIGHTS ( + ) DARK GREEN (+)  IN DRIVERS KICK PANEL
 POWER LOCK BLUE/BLACK (TYPE B)  IN DRIVERS KICK PANEL
 POWER UNLOCK BLUE and GREEN (TYPE B) Use both, See NOTE *1  IN DRIVERS KICK PANEL
 DOOR TRIGGER RED / WHITE (-)  @ FUSEBOX
 DOMELIGHT SUPERVISION USE DOOR TRIGGER, Requires Part #775 Relay  
 TRUNK RELEASE N/A  
 SLIDING POWER DOOR N/A  
 HORN GREEN (-)  @ STEERING COLUMN HARNESS
 TACH BLACK or WHITE/ BLUE  @ CHECK CONNECTOR See NOTE *2
 WAIT TO START LIGHT N/A  
 BRAKE GREEN / WHITE (+)  @ SWITCH ABOVE BRAKE PEDAL
 FACTORY ALARM DISARM  N/A  
 ANTI-THEFT N/A  
 EXTRA INFORMATION
 NOTE *1 WHEN CONNECTING FOR UNLOCK, YOU MUST USE BOTH WIRES AND DIODE ISOLATE, to connect, See DIAGRAM NOTE *2 THE CHECK CONNECTOR IS LOCATED BEHIND THE DRIVERS STRUT TOWER

posted_image
Take pins 87 to ground instesd of 12volts.


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Posted By: coolpr
Date Posted: March 31, 2007 at 6:59 PM

They have internal relays and this is what the company sent me

Orange – ground
White – Actuator wire
Yellow - +12 volts, fused, constant
ORANGE / blk – Ground
WHITE/ blk – other actuator wire
Yellow/blk - +12 volts, fused, constant

I still don't understand..I connected one wire to the Green wire and one to the blue wire coming from the Actuator and vice verse .        

White to one wire and orange to the other. I hear clicking from the relays but no action on the door locks.. :(  any ideas.. Thanks  :)



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ETO




Posted By: peterubers
Date Posted: March 31, 2007 at 7:11 PM

you can just take the actuator with GREEN/ blue wires and tap one to ground while tapping another to a constant fused 12volt source to see if the actuator works...  then flip it around and do the opposite .. green to ground and blue to 12 volts... blue to 12 volts and green to ground.

If this test actuates the actuators ... then do the following

Then I would meter the white wire (actuator wire) from the brain to see that it's supplying 12 volts to the actuator during locking .. the relays are clicking therefore it seems like it's kinda working ..



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The search function is your friend.




Posted By: KarTuneMan
Date Posted: April 01, 2007 at 10:13 AM
coolpr wrote:

They have internal relays and this is what the company sent me

Orange – ground
White – Actuator wire
Yellow - +12 volts, fused, constant
ORANGE / blk – Ground
WHITE/ blk – other actuator wire
Yellow/blk - +12 volts, fused, constant

I still don't understand..I connected one wire to the Green wire and one to the blue wire coming from the Actuator and vice verse .        

White to one wire and orange to the other. I hear clicking from the relays but no action on the door locks.. :(  any ideas.. Thanks  :)


The wires you listed reperesent pins on a standard relay.

normally open, pin 87 the colors are yelow, and yellow/black.

normally closed, pins 87a  the colors are orange, and orang/black.

common pins 30. The colors are white, and WHITE/ black

The opins 86, and 85 are controlled by the alarm brain.  Take the normally open (yellow, yellow/black) to ground. never mind the fact that there are in line fuses they are there for posative door locks, your are negative.

Then take the common (white, WHITE/ black) to your lock and unlock wires in your car. Remember...you need to diode isolate the 2 unlock wires. When you need to "trigger" 2 wires with one output from your brain, theis one wire can allow current to flow from one wire to the other.

https://www.the12volt.com/diodes/diodes.asp Read about isolating negative triggers at the bottom left.



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Posted By: coolpr
Date Posted: April 01, 2007 at 2:58 PM

OK, one white wire doe the lock and the other stripe white wire does the unlock. Could I just run both white wires to the Actuator one to the green and the other to the Blue wire and connect the orange wire to the same green and blue wire according to its unlock and Lock.; So I would have a total of 4 wires to one Actuator  - + + - since the remote sends each white wire its own signal?  Thanks again for all your help... :)

Hope you can understand what I'm talking about.. I don't have any diodes and the Key less door company didn't say I would need any. Just don't want to make that trip or delay the installation if I can help it..



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ETO




Posted By: coolpr
Date Posted: April 01, 2007 at 10:41 PM

OK I Did it :).... Works great...  what I did was what the Instructions told me to do.

Orange – ground
White – Actuator wire
Yellow - +12 volts, fused, constant
ORANGE / blk – Ground
WHITE/ blk – other actuator wire
Yellow/blk - +12 volts, fused, constant

Both Orange wires to vehicle Ground,  White wire to Actuator  Blue wire , WHITE/ Black stripe wire to Actuator Green wire ( reverse wires if remote does not correspond to there action Open/Close ) Both yellow wires to +12 volts constant ( without this Actuators would not work )   I used speaker wire to run the other Actuator to the white wires and that's it.. Thanks a lot guys for all your help and determination on bringing these Vague instructions to understanding :)



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ETO





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