Chrysler Repair: Blower not working on 2 settings, blower motor resistor, resistance values

Question
2002 sebring------------------------
Followup To
Question -
Hi I hope you can help with this one. What could be wrong when the blower for the heat and air work fine on settings 3 and 4 but not at all on settings 1 and 2?
Answer -
Hi Curtis,
Although you didn't give me the year or the model the most likely reason is that the resistors for the speeds 1 and 2 are burned out. There is a "resistor block", whose location depends upon the model, that has 3 resistors and dependiung upon which position you have the switch the current for the blower goes thru one of them and that reduces the voltage on the blower to a greater or lesser degree for slower or faster motor operation. Let me know which year and model it is and I can tell where to look for it.
Roland

Answer
Hi Curtis,
The blower motor resistor block is located under the dash on the air duct of the heater/ac unit proper. To get to it you may have to remove the glove box which is just a matter or releasing the restraint and then the screws on the hinge. But if you can see under the dash without removing it, you will see the blower and its shroud is attached to another housing that in-board to it, and in the front (facing you) of that housing you will see an electrical 4 or 5-wire lead plugged in to a rectangular fitting that is held in place by two screws. If you release the plug and remove the screws the resistor block will come out for replacement. I have the resistance values of the resistors: the low speed is 1.83 ohms, the medium-low is 0.87 ohms, and the medium high (which appears to be ok is 0.31 ohms, and of course there is no resistor for position 4 the high speed setting. So you can either try to get some replacement resistors of the same size (wattage rating) as the ones that are burned out at trade electronics supply company, or get a used block at a wrecking yard (pull-it-yourself), or buy a new block at a dealer. I don't know the relative cost of those three approaches. Please let me know if this is not sufficiently clear and also if you could let me know which route your took to fix and the cost I would be most appreciative.
The location and ohm value come from a '95 Sebring manual that I own, but I am pretty sure that the location is correct. Chrysler began to put the resistor block in the internal air distribution duct in the mid-90s after having mounted in the air intake duct on the firewall for many years earlier. They mount in an air duct to keep the resistors from overheating and starting a fire.
Roland