[Mysterytrain]

If you are digging into the 3 position switch that lives between the seats you can do some testing there. You can remove the console from between the seats by taking out the four mounting screws. Gently pry off the switch dial. Flip the unit over and you will see 3 screws that hold the switch assembly in place, remove them. Once you free the switch assembly you will have a good laugh at this tehnology. Mounted on that hunk of plastic are 3 micro switches [ made by Cherry on my console]. The first two are beefy enough to handle the current required for the low and medium speeds of the blowers.... they will have a black wire going to each of them and a white wire coming from one and a white and black from the other. If you have power [with the ignition in run] where the black wire is attached to the switches you can test each of those switches by triggering the levers with your finger and see if the voltage flows to the pole with the white and white/black wires attached. If there is no voltage on the black wire you need to trace that back and find out why. The third micro switch is a bit wimpy but it is left to do a wimpy job. Its function is to provide a switched ground for the solenoid on the infamous Aux relay that provides the high speed voltage. There are two wires connected to this switch one in Brown [ground] and the other is brown/blk, [switched ground]. You can test this switch for continuity buy flipping the lever to open and close it also check the ground connection by tracing back that brown wire yo where it is connected to the chassis. If all that stuff is working. Then you can button it all back up and look for the resistor pack and the high speed relay. The resistor pack is located in the trunk in the area behind the glove box. I'm not sure about the location of the aux relay maybe someone here can jump in. Testing the resistors again requires a meter. You can measure voltage coming in and going out..should be 12 volts in and less then that on each of the other terminals. You can also just measure the resistance. one should be .85 ohms and the other 2.3 ohms. You need to understand that the parts common to all of your issues are the microswitches under the red levers between the seats and the engine compartment controller. Those red levers switch on the controller..the controller then turns on the rear blower and the footwells..if nothing is working you might want to ck these guys out first. The microswitches get dirty, corroded or out of adjustment. With the ignition in the run position you can slowly lift the levers and listen for the relay [engine compartment controller] to click on.