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Climate control module

Discussion in 'Cherokee' started by Gwh1953, Aug 26, 2019.

  1. Aug 26, 2019 at 2:04 PM
    #1
    Gwh1953

    #1
    Gwh1953 [OP] Member

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    George
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    99 grand Cherokee
    My1999 jeep grand Cherokee has a problem with the climate control module or auto zone control module as it may be called. I have no power on the unit. I checked possible fuses and they good. What are the possible causes for this problem. Can it be a bad blower relay or bad blower resistor. If anyone has an ideas as to where to looking to troubleshooting the possible problems causes of this problem. I would greatly apperciate any help to fixing this problem thank you
     
    Gwh1953, Aug 26, 2019
    #1
  2. Aug 26, 2019 at 2:25 PM
    #2
    Awrench

    #2
    Awrench Well-Known Member

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    first we need to know which system manual or AZC ?

    WJ HVAC.jpg
     
    Awrench, Aug 26, 2019
    #2
    JKBob 25 likes this.
  3. Aug 26, 2019 at 3:11 PM
    #3
    Gwh1953

    #3
    Gwh1953 [OP] Member

    Joined:
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    Messages:
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    First Name:
    George
    Vehicle:
    99 grand Cherokee
    The bottom control the auto zone control can the manual system interchange
     
    Gwh1953, Aug 26, 2019
    #3
  4. Aug 26, 2019 at 4:48 PM
    #4
    Awrench

    #4
    Awrench Well-Known Member

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    3 jeeps
    no cannot swap controllers.

    does it light up ?

    in cab junction box fuse #7, #20, those are the easy fused power input.

    Next will need to remove controller and check wiring pin outs.

    Any other issues with your jeep?
     
    Awrench, Aug 26, 2019
    #4
    aggrex and JKBob 25 like this.
  5. Aug 26, 2019 at 5:04 PM
    #5
    Gwh1953

    #5
    Gwh1953 [OP] Member

    Joined:
    Jul 23, 2019
    Member:
    #3572
    Messages:
    12
    Gender:
    Male
    First Name:
    George
    Vehicle:
    99 grand Cherokee
    I got it for 500 dollars the previous owner put mismatched size tires on it and tore up transfer case and parts in the differentials for the quadre track. Once I get matched tires on it I will be able to know more an it 2wheel drive is fine but the heating system will be needed with winter coming
     
    Gwh1953, Aug 26, 2019
    #5
    JKBob 25 likes this.
  6. Aug 26, 2019 at 5:34 PM
    #6
    Gwh1953

    #6
    Gwh1953 [OP] Member

    Joined:
    Jul 23, 2019
    Member:
    #3572
    Messages:
    12
    Gender:
    Male
    First Name:
    George
    Vehicle:
    99 grand Cherokee
    It was fuse #20 that was bad replaced it and it works fine. Thank you very much.
     
    Gwh1953, Aug 26, 2019
    #6
    JKBob 25 likes this.
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