Does your other key work? If so, then I think you can rightly surmise that this key is defective. Depending on the exact fault, board level repair might be possible by someone with the appropriate skills but more likely a new key would be the easiest (and possibly cheaper) route. Unfortunately 'cheaper' is relative; they aren't inexpensive to buy and they can only be coded by a Volvo franchised dealer.
You can't just take the internals from a second hand key.
__________________
2007 XC90 V8 Sport
|