Can I test a blown fuse with a tester screwdriver? ?
My computer does not power on Isuspect the fuse but the fuse is white and not transparent glass I can't see the wire insideBesides the tester screwdriver lights on both ends of the fuse Is that the right way to test the fuse?
- realtor.sailorLv 71 month agoFavourite answer
If I'm following you, you need to remove the fuse to check and you need a multi meter, set on ohms, and touch each end of the multi meter to the fuse.
- ScottLv 71 month ago
A test light checks for voltage. You need a volt-ohm-multimeter set to continuity or ohms (resistance).
- Anonymous1 month ago
Power supply unit could be bad.
- thebax2006Lv 71 month ago
If you turn the key to the ON position and the CEL lights up as it should your computer is getting power. I don't have a clue why you're thinking it doesn't have power. Did you check all the sensors for the 5 volt reference signal? If you don't have 5 volts at each sensor you need to unplug each one to see which sensor is shorting out the 5 volt reference signal. One bad sensor shorting to ground will take down all the reference signals and keep the motor from running.Source(s): Mitsubishi Master Tech