As usual, after buying a used 98 Legacy Outback and repairing head gaskets, I thought it would be nice to have the keyless entry working. I bought an ebay keyless clicker, then noticed the fuses had been pulled from the KE harness. Also the anti theft Ignition 2 pin plug was disconnected and bridged. The 4 pin plug next to it was also disconnected.
Put fuses in KE harness which made the tiny dealer installed dash lamp flash and click an under radio area relay. Under dash reset button did nothing.
Check Engine light is now FLASHING and rad. fan is cycling with clicking of many relays under hood and under radio.
Cleared codes ;
P0500, P1120, P1121, P1130, P1131, (don't know what these are) and both O2 Sensor Codes
I'm probably lucky that it's still running.