Alarm has stopped activating and unlocking doors - Nissan Murano Forum
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post #1 of 18 Old 02-17-2015, 02:19 PM Thread Starter
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Alarm has stopped activating and unlocking doors

Hi all. A few days ago i tried my key and i could not unlock the Murano. I tired my second key and this also failed.. hmm.. I changed both the batteries even though i thought it would be unusual for both keyfobs to fail and still it wont unlock or lock the doors OR set the alarm on or off. I can unlock the drivers door with the key and i can also lock all the doors using the internal door lock switch - I can also start the car... It was working perfectly and then it just stopped... I have tried removing the negative battery lead and leaving it for a while and then reconnecting but still the key fobs refuse to communicate with the car.
Does anyone have an idea as to what may be causing this issue as i am totally lost here.
For your info the car is a 2007 Murano UK model with a factory fitted alarm / immobiliser and two key fobs with a lock and unlock button on each.

Thank you in advance.

Paul
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post #2 of 18 Old 02-18-2015, 07:53 AM
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When you say that your MO starts fine, is that without inserting your key fob into the dash receiver port or?
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post #3 of 18 Old 02-20-2015, 09:19 AM Thread Starter
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Originally Posted by DarkMeth View Post
When you say that your MO starts fine, is that without inserting your key fob into the dash receiver port or?
Hi, I dont have a push button start. I mean that the key is correctly matched to the car and will start it . It really seems to be that the signal from the keyfob that a activates the alarm and locks all the doors is not being received by the car.
Does anyone know if there is a fuse or a relay that could have blown making the receiver/sensor not work??
I know the doors will all lock as i can test this on both passenger and driver side button. I know the battery is ok in the key as they are both brand new and car starts. I can see the flashing car with key symbol when i close the doors and remove the key.
It's a strange one... like i said earlier, its the standard NATS that comes with the Murano.
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post #4 of 18 Old 02-20-2015, 02:52 PM
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Maybe for some reason your car and remotes are no longer synched.

Try to program your remotes. This procedure works only if you do NOT have the push button start.

1- Get in the car and using the switch on the door panel lock the doors.
2- Insert the key in the ignition and pull out, in and out about once per second until you see the hazards flash. Usually after 6 times.
3- When hazards flash, insert the key and turn to on position.
4- With ignition on, press any button on your remote.
5- The hazard lights should flash indicating it took the programming.
6- If you have more remotes to program, with the ignition still on, press the unlock then lock buttons on the door switch, then press any button on the second remote. If you have a third one, repeat.
7- Once you are done, turn off the ignition and take out the key.
8- Open the door and get out. Programing is done!

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post #5 of 18 Old 02-22-2015, 08:59 AM Thread Starter
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@zebelkhan I have tried this procedure many times and it does not work. The indicators / hazards NEVER flash . I have tried timing it to perfection using various timing methods available. I can only assume this method does not work on a European Murano.

If the remotes and car were not synched would the engine still start??

I have searched to see if a fuse could be causing a problem and there is nothing that says the NATS alarm has a fuse or relay. I find that remarkable.
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post #6 of 18 Old 02-22-2015, 12:33 PM
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Thanks for the clarification.. I'm so used to the push to start feature that it's like second nature now for me to assume all Nissans have it. lol

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post #7 of 18 Old 02-22-2015, 07:19 PM
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Does your remote look like this? If so, then the programing steps are what I mentioned. You may want to contact Nissan through their customer service number and see if they can help.

If you have that kind of remote, then it locks and unlocks the doors, and also turns on and off the security immobilizer system. So yes, it can interfere with starting the car. If it does, then you have to use the metal key to lock and unlock the doors (which resets the immobilizer system) and then you should be able to start the car normally.
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post #8 of 18 Old 02-23-2015, 09:22 AM Thread Starter
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Does your remote look like this? If so, then the programing steps are what I mentioned. You may want to contact Nissan through their customer service number and see if they can help.

If you have that kind of remote, then it locks and unlocks the doors, and also turns on and off the security immobilizer system. So yes, it can interfere with starting the car. If it does, then you have to use the metal key to lock and unlock the doors (which resets the immobilizer system) and then you should be able to start the car normally.

Thank you for your reply. No, mine is a Key with the lock and unlock button on the actual key base itself. There are three keys in total, one is a spare and the other is the valet key. The key is also "fixed" so it doesn't flip out or anything like that. The system is acting like the key and car are not synched but if I sit in the car and put the key in the ignition the interior lights come on and the car will be ready to start. The flashing symbol on the dash of "car with key symbol" also goes out when i start the car. This indicates that part fo the process, ie: starting the car, met the requirements needed as in the right key was used in the ignition barrel. Surely there is a sensor that receives the signal from the lock/unlock button on the key and then tells the car to lock or unlock the doors and arm or disarm the alarm ? If this is the case then maybe a fuse or a relay or something has failed and therefor is not sending the signal to the alarm and the door actuators. I am totally stumped on this one and really appreciate your replies so far.

Paul
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post #9 of 18 Old 02-23-2015, 01:47 PM
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...mine is a Key with the lock and unlock button on the actual key base itself...
The only other key/fob combination I know of is the intelligent one. They look like the attached picture. If yours is neither one of these two then I am afraid I cannot help you. Maybe you have an aftermarket one?
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post #10 of 18 Old 02-23-2015, 07:44 PM Thread Starter
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The only other key/fob combination I know of is the intelligent one. They look like the attached picture. If yours is neither one of these two then I am afraid I cannot help you. Maybe you have an aftermarket one?
Thank you for trying to help. It must e a Euro thing going on,. The keys are made by nissan and the NATS booklet that comes with it shows the key i have. I dont know how to upload pictures so i cant show you..
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post #11 of 18 Old 02-23-2015, 08:09 PM
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I dont know how to upload pictures so i cant show you..
Get a free account at Photobucket.com. Upload photos to that account. Copy URL of each desired photo one at a time. Come here, start a reply and use the "Insert Image" icon to insert the URL of the image. Done.

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post #12 of 18 Old 02-25-2015, 12:04 AM
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So you're saying your alarm doesn't arm at all? Even if you hit lock on the door lock switch before you shut the doors? Does the red security light blink after doing this 30 seconds later? What if you roll the window down, lock then shut the doors and after about a minute, reach in an unlock the door from inside through the window and open the door, the alarm should sound and you should need to put the key in the door and unlock the car to turn it off.

If that still doesn't work then there may be something wrong with the body control module or another module. You may need to visit the dealer.


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post #13 of 18 Old 02-26-2015, 04:40 AM Thread Starter
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So you're saying your alarm doesn't arm at all? Even if you hit lock on the door lock switch before you shut the doors? Does the red security light blink after doing this 30 seconds later? What if you roll the window down, lock then shut the doors and after about a minute, reach in an unlock the door from inside through the window and open the door, the alarm should sound and you should need to put the key in the door and unlock the car to turn it off.

If that still doesn't work then there may be something wrong with the body control module or another module. You may need to visit the dealer.


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It must be a fuse or a relay somewhere.. the correct key program procedure for my Murano is to insert key in ignition and turn it on and off six times. the indicators flash twice, you then hold the unlock button on the key and press the lock button three times. the indicators flash once. then you turn the ignition to "on" and the indicators flash twice. Well, the indicators flashed twice but did not flash once when i hit pressed the buttons on the key. This means the unit is not receiving the info. The alarm and key are made by Seimens and there is a seimens VDO behind the steering wheel which controls all of this.
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post #14 of 18 Old 06-14-2015, 11:45 AM
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I am in exactly the same situation as you, I have a UK Murano one minute the central locking on the key was working fine then nothing, did you ever get anything sorted?
I have tried the steps to link the key with the car again but with no success I cant even get the hazard lights to flash.
I have checked all the fuses both inside the cabin and under the bonnet.
Think next step will be to speak to a specialist or even Nissan.
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post #15 of 18 Old 12-20-2016, 07:35 AM
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This exact problem has just occurred for me yesterday.

I've got the car booked in with Nissan in the New Year so will report back. Fingers crossed the keys just need re-syncing with the car.
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