Question about 2006 Chevrolet Cobalt

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Door locks my door locks just all the sudden started locking and unlocking by themselves and the alarm will go when i open the door. it constantly does this when i am driving or it is in park with then engine off. what do i do?

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  • djnl96 Sep 13, 2008

    I have the same problem, word for word. it comes and goes, 3 times in last year, usually last 1 week. Tis time it wont stop.

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I had this problem and changed the drivers side door lock switch. JUST the switch. It had gotten wet and shorted out my motherboard, and bam, haven't had the problem since.

Posted on Sep 26, 2009

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First I would try replacing the battery in your remote for the car. That's what it sounds at this point. Please let me know how you make out.

Cheers

Posted on Aug 22, 2008

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1 Answer

What causes auto locks to go off by themselves constantly. What causes auto locks to go off by themselves constantly


Many newer vehicles use a voltage-differential method of locking/unlocking the doors. This uses a resistor to create the voltage difference between lock and unlock commands depending upon which way you toggle the lock switch. They do this so that if the car battery starts to fail, and the voltage drops to a certain point, the doors will unlock automatically rather than staying locked, allowing you from entry if the battery dies (seeing as some newer cars do not have key-type door locks anymore). The problem could be that your charging system is not putting out the proper voltage or you could have a faulty lock switch or resistor.

Sep 22, 2015 | Cars & Trucks

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My 98 kia sportage wont start


It sounds like the key sensor in the drivers door is malfunctioning, the drivers door is the only door that can enable/disable the alarm, if you try to unlock any of the others it will trigger the alarm.

Sometimes with my Kia I have to (without opening the door), cycle lock and unlock several times before the alarm is disarmed.

Have you tried this is succession, with all the doors locked:-

put the key in the drivers door, turn to lock and then to unlock, the alarm should disarm.

Also, if any of the door locks are jammed, the alarm will still activate when you try to unlock the drivers door.

If that fails and the alarm still activates, then it's a problem with the key sensor in the door.

Mar 30, 2014 | 1998 Kia Sportage

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Door locks unlock and lock by themselves


sounds like you alarm is malfunctioning or shorting out, look under the dash and try unplugging the alarm box and see if this stops the issue. if alarm has engine cutoff it wont start with alarm unplugged. i would test unplugging alarm first and seeing if it stops the issue , then deal with alarm cutoff. It is very common for low end alarm guys to miss wire alarms and over time many issues come up with electrical shorting out, ect.

Jan 11, 2014 | Ford Expedition Cars & Trucks

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I bought a 1996 Subaru Impreza L 4dr 5speed AWD that runs and starts fine but when I was installing fog lights i noticed that there appears to be an alarm hooked up (it says "code alarm elite DM...


Battery Constant 12v+ Positive Wire (+): Black/Yellow
Battery Constant 12v+ Positive Wire Location: Ignition Switch Harness

Starter Positive Wire (+): Blue/Red
Starter Positive Wire Location: Ignition Switch Harness

Ignition Positive Wire (+): Red
Ignition Positive Wire Location: Ignition Switch Harness

Accessory Positive Wire (+): Red/Yellow
Accessory Positive Wire Location: Ignition Switch Harness

Parking Light Positive Wire (+): Red
Parking Light Positive Wire Location: Low In Drivers Kick Panel

Power Door Lock Negative Wire (-): Add Actuator. This vehicle uses a central door locking system. When connecting a keyless entry, you will need to add a door lock actuator and some units will also require (2) extra relays.
Power Door Lock Negative Wire Location: To Drivers Door Only

Power Door Unlock Negative Wire (-): Add Actuator. This vehicle uses a central door locking system. When connecting a keyless entry, you will need to add a door lock actuator and some units will also require (2) extra relays.
Power Door Unlock Negative Wire Location: To Drivers Door Only

Door Trigger Negative Wire (-): Red/White
Door Trigger Negative Wire Location: In Black Plug, Above Hood Release

Domelight Supervision Wire: Use Door Trigger, Requires Relay
Domelight Supervision Wire Location: N/A

Horn Negative Wire (-): Red/Green
Horn Negative Wire Location: At Steering Column Harness

Tachometer Wire Negative Wire (-): Black/Blue
Tachometer Wire Negative Wire Location: At ECM, Under Drivers Side Dash

Brake Light Positive Wire (+): White/Black
Brake Light Positive Wire Location: At Switch Above Brake Pedal

CODE ALARM SYSTEM

Used on:
Impreza 1996-2001
Legacy 1995-1999
Forester 1998-2000

codealarmremote2.jpgBattery GP-23A

Lock: Left button will lock all doors. Double chirp indicates locked.
Unlock: Right button will unlock driver's door only. Hold unlock button app 6 seconds, it will unlock all doors including rear gate. Single chirp indicated unlock.
If the car chirps or lights flash 4x the alarm was triggered.
Panic. Press both buttons to activate emergency honk and flashing lights.
Valet mode: With optional alarm onlyPress the red alarm button on the left of the steering wheel. The light will quickly double flash. To re-set back to normal mode, press the red alarm light button again

Battery failed and lights flashing?
Parking lights will flash when the vehicle's battery is disconnected and reconnected.
To stop lights from flashing, either:
Press remote transmitter "UNLOCK" button once OR turn the ignition switch to the "ON" position and press programming button for one second (see below).
The vehicle interior (courtesy) light and door open warning light (DOOR AJAR indicator) will then illuminate for 60 seconds when the ignition is turned off, or until the doors are locked with the remote transmitter. Yes, the dashboard instrument panel lights will flash when the parking lights flash.

Programming or Overriding the Alarm when you have lost the remote
Open driver's door.
Turn ignition key to 'On'
Press and *hold programming button* in (see diagram, button under dashboard)
After 15 seconds the the door locks will cycle 3 times. Do not release Programming button.
Press lock (left) button the remotes to be programmed. The door locks will cycle one time. Exit programming mode by releasing Programming button under dashboard and turning key to off.


codealarmremote1.jpgCode Alarm Programming Button is under dashboard on the kick panel by the driver's left knee, left of the steering column. If you can't find it, it might still be tucked up in the wiring harness higher up in that same general area. The botton is recessed in a plastic ring (see diagram).
This button must be pressed while programming remotes or if the battery was disconnected and the lights are flashing.

Jan 05, 2011 | Subaru Impreza Cars & Trucks

1 Answer

Although I lock my doors, the unlock by themselves after a short (approximately 40 second) time. The alarm stays on however.


Sounds like the central locking system thinks a door is open, check the bonnet and tailgate switches are indeed closing (and sunroof if fitted) make sure the boot light is not staying on. Try locking it from the passenger side door lock key cylinder instead of the drivers side or the remote and see if it is ok then

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1 Answer

Electronic lock/unlock not working


Apparently the "LOCK" function is working normally because the burglar alarm is being activated when you 'lock' the car. Is this right?
The fact the engine won't start when the burglar alarm is activated is NORMAL If the doors will not UNLOCK front the driver's door manual switch, I believe you have a bad DOOR UNLOCK relay in the control module.






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Aug 10, 2009 | 2001 Hyundai Elantra

1 Answer

Door locks and alarm!


dealer only ,encrypted software needed to diagnose the fault

Aug 04, 2009 | 2006 Chevrolet Cobalt

1 Answer

1993 Nissan Maxima SE Car Alarm freaks out, and other electrical


Im no professional but i did recently buy a 93 maxima and i have the same security alarm problem and my powered locks dont work at all. im taking off the door panel today to take a look and see if the alarm sensor is loose or damaged, if it is, ill probably just disconnect it. one thing i have noticed though is that when i hit the lock or unlock button, i hear a faint click from the dashboard area which im assuming is the solenoid on a transistor which would mean that the buttons work but the transistor isnt delivering power. Semi-Solution for Locks: Listen for very quiet click when you lock/unlock doors, if you hear it, uve got major work to do, if you dont, then take apart the door and check the switch connections. Semi-Solution for Alarm: take off the door panel and disconnect the sensor.

May 06, 2009 | 1993 Nissan Maxima

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