Key fob not responding

Hi had this problem a while now but has got to a point where the key fob will light up but the car is not picking it up. Have resynched the key by putting the key in the lock and locking it and pressing the key and the light flashes quickly and then centralising, and then opening the car on the lock and pressing the key fob until the light flashes quickly and again centralising. When I put the key in the ignition there is no response from the car when prompted to press key fob and the engine is still disabled.
The car appears to not respond to the key fob when pressed, so car is not opening or closing automatically on the key. Any ideas?

Have you tried emergency key access code to disable engine immobiliser??
Car battery good?? Key fob batteries? RF receiver?

kevwill said:

Have you tried emergency key access code to disable engine immobiliser??
Car battery good?? Key fob batteries? RF receiver?

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All good, except RF receiver was replaced a few years ago for the same problem, maybe its that that is the problem again.

andy545 said:

All good, except RF receiver was replaced a few years ago for the same problem, maybe its that that is the problem again.

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Replaced RF Receiver car still not responding. Emergency Access Code inputted still not responding, car dead in the water so to speak. The breakers yard is calling.

Worth checking the information in the owners handbook re battery removal & replacement.
When removing battery you should turn ignition key to 'on' then 'off' and disconnect battery within 17 seconds.
When reconnecting battery you need to turn starter switch to position '1' to deactivate alarm.
Is the new battery earthed correctly? Follow the earth leads all the way to check.

Low battery voltage?

sounds like it has lost its coding if the EKA code is not allowing the engine to start best bet is to buy the sync mate tool off ebay to resync the system

sambo634 said:

sounds like it has lost its coding if the EKA code is not allowing the engine to start best bet is to buy the sync mate tool off ebay to resync the system

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That is not the best bet, a Syncmate resync's the BECM to the engine ECU, nothing at all to do with FOB operation. For this problem a Nanocom would be better, it would allow you to see if the BECM is receiving a code.