It sounds like you blower motor went out but to be sure please follow this guide which shows how to replace it and how to see if the motor has power.
You can test for power with the test light but to check for a ground with it you would need to hook the alligator to a power source on the cars electrical system.Turn the blower on high with the key in the run position.Then wiggle the plug at the blower motor see if it starts working.
Also smack the blower motor with your hand see if it starts working.Also unplug the blower motor and see if ethier terminal looks open.Check and see if your getting power to the blower motor.You should invest in a multimeter there cheap and have a lot of uses.
Check out the diagrams (Below)
Let us know what happens and please upload pictures or videos of the problem.
Images (Click to enlarge)
Monday, August 22nd, 2011 AT 6:06 PM