Just bought a 99 s70, and I love it.

It came with the factory keyless remote, but it doesn't work. 'Replaced the battery in remote, no dice. I've read in the forums that several have had to have the receiver replaced, so it seems a real possibility that the receiver could have died. Short of taking it to the dealer, where do I start troubleshooting it?

Thanks in advance,

Bob

Don't guess at a receiver as that'd be highly unlikely AND still won't fix it w/o the dealers PC to program it SO you'll be wasting your time and money.
In '99s on up, the dealers PC is required to program those remotes and it's likely that you'll need new remotes (plus programming) as what often happens with used cars is that a salesperson finds any ol' remotes and throws them in w/o testing them first. If so, they owe you two remotes IMHO (assuming it was purchased by a dealer?).

Note! Used remotes can be programmed to 98-00 S/V-70, and 98-02 C-70. On 98's, the volvo scan tool and a pin code are used to enter programming mode, and a button on the remote is pressed, and the car will recognize it. 99-00 S/V, and 99-02 C require Vadis software download to enter program mode, press remote button, car recognises remote. This also applys to 00-02 S/V-40. The dealer also has a remote tester so you can verify the remote is indeed transmitting before attempting to program it.