Thread: I really need help - Central locking/Alarm/Key fobs etc etc

RACQ guy managed to get bonnet open. He disconnected the battery as the alarm went off and key fob would do nothing. We reconnected the battery a few times and no luck with the fob. Battery is new and fully charged. He had been working on it for over an hour and I have to move it as I move in to my new house tomorrow and check out of hotel so i said break the rear right window. He had to make a few hits. I told him they are tough. Before he climbed in the window he reconnected the battery and alarm went off again, he pressed the fob and it worked. Car unlocked. Breaking the window was unnecessary after all that. Perhaps just having the battery disconnected for a few minutes did the trick. The fob is not working again. I have removed everything from the car and left it unlocked. The spare key is in my removal. Anyone know where I can get a cheap rear right door window? I swear that car is possessed sometimes. It gives me great joy at all other times. My other car arrives tomorrow so nothing is urgent.

Same as mine - battery replaced and fobs only unlocked intermittently and then stopped working. However disconnection of the battery would usually bring them back to life for a day or so - but would still not lock the vehicle. Fortunately (for me) the key would still lock it - once I replaced the driver's door lock mechanism.

Update from 11 Jan:

Service Manager rang and apologised for the delay as he had been away at his father's funeral.

Said that LR are adamant that their key is correct for the VIN. Key does not match vehicle!

I am helping the dealer backtrack vehicle history to find out if there was a change of lock and ignition barrel etc. at some stage that did not get recorded against the VIN.

I bought it off the second owner. He didn't have the keys, locks or ignition barrel changed in the time he had it. Told me who he bought it off (Independent Specialist in Vic) and so the dealer rang them. They had no record of a key change.

Tonight I have photocopied the delivery record and service records and will drop that into the service manager tomorrow so he can chase up the delivering dealer.

Will be interesting to find out what the reason for the wrong key code for the VIN is.

Has anyone ever heard of that happening - particularly with a Land Rover?

I had not heard anything from the dealer for over four weeks so made contact yesterday asking what was happening.

I was rung back to be told that the vehicle had left the factory and been delivered in Australia with a 315MHz remote system. At some time the whole locking system (barrel, door lock & remotes) have been changed and it now has a 433MHz system that has not been recorded in TOPIX. Hence there is no record of the change and so there way of knowing what has been put in and no way of ordering a key that will match the current locking system.

I was offered two options.

Option 1. Order a complete new 433MHZ system (ignition barrel, door lock, 2 matching keys and remotes) and have that installed. Total Cost $2180.

Option 2. The dealer could order a 315MHZ key and remote and and they try and get it to work with the vehicle - no guarantees. Cost $580.


In an earlier post I mentioned I had changed the receiver in the vehicle. This I ordered from a dealer interstate (who I usually order parts from). I order the receiver having given my VIN and a 433MHz receiver was sent. When I placed this in the vehicle the remotes would occasionally 'unlock' the vehicle - lights flashed etc. as happened with the original receiver. To me this says two things - yes I do currently have a 433MHZ system AND that it was 433 when it was built. Maybe I'm wrong on the second thing but I think not.

Hence I was amazed that they told me what Option 2 was!

So what do we do? We have chosen Option 3.

Option 3. I will retrieve the second key and remote from the dealer on Monday and we will continue to lock and unlock the vehicle manually.

At least we'll have two keys again - the other has been with the dealer for the past 3 months.

Like others, I am waiting for Nanocom to release either their Beta or next full release firmware which should allow me to learn new keys to the vehicle. I'll give this a try, unless my trip to Alice Springs in October comes first, in which case I might chat to the dealer there about it.

On another note, the rear wheel bearings were replaced yesterday so it can be driven as it should be again

So does locking it with the key mean the alarm or immobiliser don't work?

Sent from my GT-P5210 using AULRO mobile app

Originally Posted by DiscoMick

So does locking it with the key mean the alarm or immobiliser don't work?

Sent from my GT-P5210 using AULRO mobile app

5 Seconds after the key is removed from the ignition the engine is immobilised.

The indicator on the instrument cluster tells me "the alarm is disarmed but the vehicle is immobilised (key out of starter switch)".

I ended up being too busy and frustrated to take a photo of the key that had been at the dealers for the last 3 months which I picked up yesterday, but I spent this afternoon putting the key back together in one piece with its remote.

To try and get the (incorrect) new key that had been ordered to work, they had removed the pin in the key blade assembly (see new blank below) of my existing key.



Because the fob attached to it was new with a new battery installed, I had not glued it together when I gave it to them 3 months ago. Hence it was returned to me without the pin and sticky taped together.

Today I inserted a small piece of wire as a temporary pin and glued the case together. The key opened the passenger side door, turned the ignition but would not start the vehicle.

I then updated the firmware on the Nanocom with the Beta that was kindly emailed to me earlier in the week. I was then able to 'relearn 2 keys' and both keys are now usable.

I took the vehicle for a drive and got the 'Low Key Battery' alert in the message centre when I got home. Went for another drive and still had the same message when I got home. However... using the remote - the vehicle would occasionally lock! It would also unlock via the remote.

We decided a trip to the Darwin wharf for dinner was needed (where the vehicle was locked manually) and after returning home the key battery message did not appear. Upon using the remote to lock the vehicle some weird things happened. Sometimes it would lock as soon as the remote lock button was pushed. Sometimes it would unlock when the remote lock button was pushed. Sometimes pushing the remote lock button would be done 6 times in a row and each time the vehicle would unlock. Next try and it would lock!

Looking for an upside - at least I have finally got it to lock - even if ever so intermittently! And we also now have two functioning keys so that we can lock the vehicle manually and (hopefully) not have to worry about locking the only key inside...

More investigation tomorrow me thinks...