Resetting key fob after Battery change

[Iggy]

I just had to change the battery in the key fob. I was wondering if I can use the nanocom to set it up to work again, or is there another way??
Cheers Iggy

[Charlie]

What model vehicle?

[Iggy]

TD5 Defender

[Charlie]

Too new for me to assist you!

You may have a better chance getting a response in 'Techical Chatter'?

[justinc]

With the Td5 Defender alarm system, it is a Lucas 10AS like the D1 and freelander. (oops, sorry shouldn't say that word in this section)

The easiest way to re-synchronise is to repeatedly press one of the buttons on the fob until the thing unlocks/ locks. I have found most are set up only as central locking, and can actually be configured as a complete immobiliser etc using Rovacom ar testbook etc.

If it STILL won't work, then it will need re-learning, and this requires the use of Rovacom or Testbook, (I'm not sure whether Nanocom does this?) Both remotes need to be done at the same re-learning session.

The other thing to note, is that the key fobs sometimes break the battery connections on the PCB. Have a look carefully to see if this has happened. This is unusual for so late a vehicle though.

JC

[101RRS]

As Justinc said - repeatedly press each button four or five times. I can also confirm they break the circuit board where the battery connects - can be soldered up though.

And what is wrong with mentioning Freelanders - hmmmm??

[Iggy]

Thanks
I will give this a try. When I initally brought the second fob from a stealer they had to do it with their test book and charged quite a bit for it.
Cheers Iggy

[101RRS]

Thanks
I will give this a try. When I initally brought the second fob from a stealer they had to do it with their test book and charged quite a bit for it.
Cheers Iggy

If the one you have worked on the car before the battery change then pushing the buttons alternatively about five times should work. However if it is a different fob that has not been used on the car before, then it has to be coded to the alarm computer - this can only be done on a nonocom or equivalent.

Garry

[Iggy]

Have checked the battery connections and they seem to be solidly soldered on to the circuit board. Pushed buttons repeatedly and nothing is happening, it is the original key fob that came with the car. When it stopped working I assumed it was only the battery that had died (brought new in 2004), maybe something else is knackered. Any other ideas ????
Cheers Iggy

[LandyAndy]

The D2 has a LED on the key that glows as you press.Has the Defender got the same?,will tell you if the battery is working.
You did put the fresh battery in right way up????
Fresh battery also flat????
I didnt need to reprogram my D2 keys when I swaped the batteries.
Any chance you accidentley "switched off" the alarm system whilst "exploring" Nanocom???
Goodluck
Andrew