HOW TO: Replace the Blower Control Resistor Block

Discussion in 'How To' started by lavalva, Feb 21, 2005.

  1. lavalva

    lavalva New Member

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    My heater/AC resistor went, and I'm trying to make it easy on my mechanic friend by finding out where to replace it. Anyone know offhand where on the Liberty I can find this?
     
  2. TRAILN

    TRAILN Full Access Member

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    Behind the glove box
     
  3. TRAILN

    TRAILN Full Access Member

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    Book calls for .6 so it should only take a few minutes
     
  4. TRAILN

    TRAILN Full Access Member

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    REMOVAL
    WARNING: ON VEHICLES EQUIPPED WITH AIRBAGS,
    DISABLE THE AIRBAG SYSTEM BEFORE
    ATTEMPTING ANY STEERING WHEEL, STEERING
    COLUMN, OR INSTRUMENT PANEL COMPONENT
    DIAGNOSIS OR SERVICE. DISCONNECT AND ISOLATE
    THE BATTERY NEGATIVE (GROUND) CABLE,
    THEN WAIT TWO MINUTES FOR THE AIRBAG SYSTEM
    CAPACITOR TO DISCHARGE BEFORE PERFORMING
    FURTHER DIAGNOSIS OR SERVICE. THIS
    IS THE ONLY SURE WAY TO DISABLE THE AIRBAG
    SYSTEM. FAILURE TO TAKE THE PROPER PRECAUTIONS
    COULD RESULT IN AN ACCIDENTAL
    AIRBAG DEPLOYMENT AND POSSIBLE PERSONAL
    INJURY.

    (1) Disconnect and isolate the battery negative
    cable.
    (2) Open the glove box door to gain access to the
    blower motor resistor.
    (3) Pull out the lock on the blower motor resistor
    wire harness connector to unlock the connector latch.
    (4) Depress the latch on the blower motor resistor
    wire harness connector and unplug the connector
    from the resistor.
    (5) Remove the two screws that secure the resistor
    to the HVAC housing.
    (6) Remove the resistor from the HVAC housing.
    INSTALLATION
    (1) Install the new resistor in the HVAC housing.
    (2) Install the two screws that secure the resistor
    to the HVAC housing and tighten to 2.2 N·m (20 in.
    lbs.).
    (3) Plug in the blower motor harness connector.
    (4) Push in the lock on the blower motor resistor
    harness connector.
    (5) Close the glove box door.
    (6) Connect the battery negative cable.
     
  5. lavalva

    lavalva New Member

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    Wow, awesome... Thanks a lot.
     
  6. TRAILN

    TRAILN Full Access Member

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    (biggthumpup)
     
  7. 2003KJ

    2003KJ Member

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    LOL! Thats something you'd see Homer Simpson do. Dum dee deee deee, i'll just pull this fuse right here and i'm good to.....POOF!!!!! Dammit!!!!!"
     
  8. TRAILN

    TRAILN Full Access Member

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    lol
     
  9. Corwyyn

    Corwyyn Full Access Member

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    re:airbags

    D'OH!!!!! #-o Stupid air bags!
    DAMN YOU, Ralph Nader ](*,)
     
  10. SRotblat

    SRotblat Full Access Member

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    Re: re:airbags

    your blaming Nader for airbags (Aeh)
     
  11. BluPhant

    BluPhant Full Access Member

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    I had same problem, JUST out of factory warranty. Called dealer, they did it for me for free (under warranty) with my last oil change. I can now use the "1" setting again!

    :)

    -Blu
     
  12. Bennett

    Bennett Active Member Administrator

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    Setting 1 just went out on the blower... anybody know what size resistor i need?

    Thanks
    Bennett
     
  13. Trodo

    Trodo Full Access Member

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    Maybe this should be put in the How-To Section, it comes up alot.
     
  14. Bennett

    Bennett Active Member Administrator

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    Will do.

    Thanks
     
  15. Corwyyn

    Corwyyn Full Access Member

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    This is from the 2003 manual:

    The resistor is a credit card resistor that utilizes
    resistor circuit tracers to reduce current flow to the
    blower. The blower motor switch directs the ground
    path through the correct resistor circuit to obtain the
    selected speed.
    The blower motor resistor cannot be repaired and,
    if faulty or damaged, it must be replaced.
     
  16. valvestem

    valvestem Full Access Member

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    Pic of Resistor Block Location

    [​IMG]
    [​IMG]

    Sorry I think the host for these pics is down at this time, 4-10-07, 1902Hrs., EST.
     
    Last edited: Apr 10, 2007
  17. Bennett

    Bennett Active Member Administrator

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    Ok, so I got the red tab to pull out... but what is the other tab the arrow is pointing to, do I squeeze that as I pull??

    Thanks,
    Bennett
     
  18. BluPhant

    BluPhant Full Access Member

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    Yes.

    -Blu
     
  19. Bennett

    Bennett Active Member Administrator

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    Ok I just got around to doing it...

    I got this out...
    [​IMG]

    What is there to replace? the whole thing?

    any idea on the part number

    Thanks,
    Bennett
     
  20. Bennett

    Bennett Active Member Administrator

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    Alright... I just went to the dealer and got the part.

    Part Number:
    05139719AA


    My blower controls now work again.


    Bennett