Ok, so my key fob unlocks the doors of the car like once a month if I’m lucky. Also, I changed the failing battery with a used one which probably isn’t that healthy either. So, will installing a fresh new 12 v bring my keyless entry back to life, I’m sure it is that because after charging the battery overnight the keyless lock unlock and Keyless starting was working as well. Thanks
Only if the old one is weak or has bad connections. You have almost proved that......so I think it is worth the gamble, especially if it is over 4 years old (the battery that is).
