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Rover 400 Series Key Fob Problems



Rover Key Fob Out of Sync



Symptoms

Unable to unlock central locking.
Unable to dis-engage Immobiliser.

The security system uses a rolling code arrangement, when you press the key fob, not only will this operate the security and central locking system but it causes the code transmitted by the key fob to change, at the same time, the alarm module in the vehicle also changes code to match the key fob. If you keep your key fob in your pocket there is a very good chance that the buttons will be pressed, this of course puts the key fob out of sync with the vehicle.

This is fairly simply rectified by standing adjacent to the vehicle and pressing the lock button between 4 and 8 times, then the unlock button once.



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