Hey guys, I have a 2000 Olds Silhouette van that has a battery drain. Turns out the drain stops if I pull the Radio Fuse. When I do this, it also disables the keyless entry/alarm. Also, when I start the vehicle the Change Oil light will always come on for about a minute then go off.

Any tricks to troubleshoot what the issue really is? Radio, alarm, keyless entry?

I need to get this vehicle in for a smog test and afraid they may not do it if the Change Oil light comes on.

Thanks for any assistance you may provide.

Steve

Disconnect the electrical supply from each component on the circuit one at a time until the drain goes away. For example, pull the electrical connector off the back of the radio.