So, here are a few symptoms of a bad IOD fuse:
- Interior dome/reading/map lights
- Power locks
- Open-and-close door module & window motors
- Radio/CD/Cassette player (the unit may still show trim lighting)
- The trip odometer memory (would reset each time the car is shut down)
- Left/Right visor vanity and underhood lamps
- DLC connector
- Electric or memory seats
- GPS equipment
- Wireless control module or WCM
- Clock
- Remote key receiver
- Remote engine start module
- Heater fan on warm engine detect
Here is a tip to pull the fuse and check the IOD fuse terminal or fuse holder itself for corrosion. Found this on the interwebz:
"...once you raise the holder, how the top of the holder flips up from the front and is hinged on the rear, exposing the top of the fuse. Then you can push one of the fuse legs up with a screwdriver to remove it. The fuse legs were surface corroded just a bit."