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Old 19th November 2019, 18:02   #1
elnoxx
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Question Rover 75 Key Fob Stopped Working

Hi guys,

So after driving my lovely Rover 75 for some months with zero issues i had to discover my key not working earlier today.

I first thought its a battery problem so i drove home just fine changed the battery and nothing.

I pressed the keys multiple times, helt the keys down, started the car and tried the same, opened and closed all doors just to make sure they are closed correctly.

But sadly nothing helped.


Does this seem to you guys like a broken key or maybe a sync issue?

I tried looking up ways to sync but nothing seems to work.


All doors open / close just fine using the lock.

I also took the new battery out for some time and put it back in to make sure it fits correctly.
The chance its a dead battery is quite small tbh and the old battery showed no signs of being empty prior to today.




Any tips or links to a quality replacement dealer are appreciated
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Old 19th November 2019, 18:10   #2
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The micro chip in the key is very small and can easily fall out while changing the battery.---
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Old 19th November 2019, 18:15   #3
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Also the red lights on the key work
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Old 21st November 2019, 17:43   #4
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[QUOTE=COLVERT;2776876]The micro chip in the key is very small and can easily fall out while changing the battery.---[/QUOTE

Do you still have this bit.---( Transponder. )
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File Type: jpg Key transponder..jpg (110.3 KB, 30 views)
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Old 22nd November 2019, 10:00   #5
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[QUOTE=COLVERT;2777277]
Quote:
Originally Posted by COLVERT View Post
The micro chip in the key is very small and can easily fall out while changing the battery.---[/QUOTE

Do you still have this bit.---( Transponder. )


Thank you for your answer but ive had 2 keys which worked and now none works.

I also changed the battery after it stopped working on one of the keys which means it couldnt have fallen out besides there is a 2nd key which has not been opened and is pretty new
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Old 22nd November 2019, 13:30   #6
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The keys may need a reset place key in door lock and press lock or unlock button four times to re-sync the fob, the chip is inside the key hence the physical connection.

Worth a try - if no luck i would seek advice of BigRuss - drop him a PM.
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Old 23rd November 2019, 12:26   #7
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[QUOTE=COLVERT;2777277]
Quote:
Originally Posted by COLVERT View Post
The micro chip in the key is very small and can easily fall out while changing the battery.---[/QUOTE

Do you still have this bit.---( Transponder. )
Transponder is for the immobiliser only, not linked to the remote locking/unlocking in any way.
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Old 19th November 2019, 18:17   #8
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I'm guessing we're talking about the remote operation ...

A member here in Sweden had the same problem a few days ago. Tried the sync procedure as per handbook, didn't help. Then tried what he referred to as a "Norwegian re-set": took one of the cables off the main battery and held it briefly against the other. Tried the sync procedure and it worked. First time I've ever heard of it.

Otherwise people tend to recommend a main battery disconnect for half-an-hour, if that fails then Toaf can reactivate remote boards.

Regards
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Old 19th November 2019, 18:36   #9
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Yes i was talking about the remote function key it self works fine.

Are you talking about the cars battery or the keys?

Thanks.
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Old 19th November 2019, 18:57   #10
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Quote:
Originally Posted by elnoxx View Post
Yes i was talking about the remote function key it self works fine.

Are you talking about the cars battery or the keys?

Thanks.
The car's main battery. His method, I've never hear of it before, use at your own discretion.

Regards
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