One day last week my Astra Mk4’s electronic key stopped operating the central locking and disabling the car’s alarm.
I bought a new battery then tried packing it out with cardboard as advised on other threads here but still it wouldn’t work.
I took the little cct board out of the key and measured across the battery - as the buttons were depressed, the voltage dropped - so current is being drawn and something must be happening.
I imagine my alarm going off as I leave for work each day at 6am will soon p!ss off the neighbours, especially when I pull a Sunday shift.
Can anyone advise me on what to try next in the fault finding department and how to disable the Alarm’s horn (where is it?)
Thanks in advance for any advice.