Last Updated: Feb 24, 2015
The blue wire on the blower motor is positive and the other negative, so test the blower motor itself to the battery by hot-wiring those two wires to battery positive and negative. The blower motor should also work in highest fan speed, as there is no resistor in the blower resistor module for that, it's straight through.
The blower resistor can be accessed after removing the glove box door and glove box by removing a bunch of screws. The blower resistor is on the top of the housing; remove the wire connector by the beloved "push tab in while pulling" technique. The resistor is removed by taking out two screws and then lifting it up. Visually inspect the resistance coils; a break is bad. The side of the blower resistor with the terminals has markings C, L, M, H2 AND H1. Here's about what the blower resistor should test, with an ohmmeter, all in ohms, all measured from the C terminal to the ones listed:
L about 2.0
M about 0.9
H2 about 0.3
H1 continuity (0 to 0.1)
Created By: Cusser