Hey all, been a while....

In all my previous vehicles, when the blower motor's ballast resistor blew out, it would only leave the fan operable in the High position.

However, in my wife's '04 Libby, the fan works in both position 3 and 4; positions 1 and 2 are dead. Is this characteristic of the KJ ballast resistors, or do I need to dig deeper with this?

Thanks -

Could be a resistor.

Ive not looked into it real deep but it sounds like its just a multiplexer. It has 3 different resistors with different resistance and any of those 3 resistors can go bad. The 4th position doesnt use a resistor so only 3 is needed.

Could be wrong, Im just thinking out loud.

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LOST KJ'S
Where are you going???
Current Jeep: 2004 Jeep Liberty
-Atlantic Blue
-Air Ride Rear Suspension ; OME/Rustys Lift ; Powertrax Locker ; Moog Lower Ball-Joints ; 245/70/16 Yokohama Geolander A/T-S's on MOABS ; Flowmaster 50 SUV
Lost #007082
http://www.cardomain.com/id/jeepjeepster

Ta-da!

Blower Motor Resistor

It's easy as pie to change.

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02 Liberty Limited
Silver Outside & Taupe Inside
Heated Seats, Sunroof & Infinity speakers
USA Spec I-Pod adaptor, Mopar Sub, Garmin GPS
Tow Package, Select-Trac
Rock Rails, Tow Hooks

Hmmm...never seen one blow and leave TWO speeds working...

Oh well...they're cheap enough - I'll give it a try. Thanks!

Replaced mine in the last couple of weeks, on our '02, because speeds 1 and 2 didn't work.