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  1. #1
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    Default WJ Blend Doors/Heater Codes

    Hello,

    So last night I randomly stumbled across a YouTube video describing a no heat situation with the internal heater. I have a similar problem in that my heater only seems to heat on high and even then not very well.

    The video seems to suggests that this is a common problem with the Jeep GC as the plastic hinges on the blend doors break. The video also shows a trick whereby you hold in the A/C and recirculation buttons and using the LEFT temperature control knob you can access some type of code...

    Does anybody know what the numbers represent/have a definition? Mine cycle from 53 through 56 - at first I thought it was the heat output in Fahrenheit however I am not so sure as the video suggest that they are error codes

    Cheers

    David

  2. #2
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    OW have you had a look at this site ? Tell you all you need to know about the problem.
    2004 Jeep Grand Cherokee Laredo (WG) 4.7L V8 - Oh the joy

    <a href="http://www.fuelly.com/driver/mfour/grand-cherokee" target="_blank"><img src="https://badges.fuelly.com/images/smallsig-metric/118642.png" width="135" height="50" alt="Fuelly" title="Share and compare MPG at Fuelly" border="0" style="border:solid #ccc 1px;padding:4px;background:#fff;"/></a>

  3. #3
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    Thanks mfour!

    It was their video I was watching last night.... the website has far more information - error codes below.

    Have you fixed your blend doors?


    Input faults

    01 = IR thermister circuit open
    02 = IR thermister circuit shorted
    03 = Fan pot shorted
    04 = Fan pot open
    05 = Mode pot shorted
    06 = Mode pot open
    07 = IR sensor delta too large
    08 = Reserved
    09 = Reserved
    10 = One of four motor drivers has drive "A" shorted to ground
    11 = Engine air intake temperature bus message missing
    12 = Country code bus message missing

    System faults

    13 = Mode motor not responding
    14 = AI (Recirc) motor not responding
    15 = Left temperature door not responding
    16 = Right temperature door not responding
    17 = Mode door travel range too small
    18 = Mode door travel range too large
    19 = AI (Recirc) door travel too small
    20 = AI (Recirc) door travel too large
    21 = Left temperature door travel too small
    22 = Left temperature door travel too large (Result is no heat - Our kit repairs this)
    23 = Right temperature door travel too small
    24 = Right temperature door travel too large (Result is no heat - Our kit repairs this)
    25 = Calibration check sum error
    26 = Engine coolant temp bus message missing
    27 = Vehicle speed bus message missing
    28 = Engine RPM bus message missing
    29 = OAT bus message missing
    30 = Display intensity bus message missing
    31 = VIN number bus message missing
    32 = Raw OAT buss message missing

    Input faults

    33 = IR thermister circuit was open
    34 = IR thermister circuit was shorted
    35 = Fan pot was shorted
    36 = Fan pot was open
    37 = Mode pot was shorted
    38 = Mode pot was open
    39 = IR sensor delta was too large
    40 = Reserved
    41 = Reserved
    42 = One of four motor drivers had drive 9A9 shorted to ground
    43 = Engine air intake temperature bus message missing
    44 = Country code buss message missing

    System faults

    45 = Mode motor was not responding
    46 = AI (Recirc) motor was not responding
    47 = Left temperature door was not responding
    48 = Right temperature door was not responding
    49 = Mode door travel range too small
    50 = Mode door travel range too large
    51 = AI (Recirc) door travel range too small
    52 = AI (Recirc) door travel range too large
    53 = Left temperature door travel too small
    54 = Left temperature door travel too large (Result is no heat - Our kit repairs this)
    55 = Right temperature door travel too small
    56 = Right temperature door travel too large (Result is no heat - Our kit repairs this)
    57 = Calibration check sum error
    58 = Engine coolant temp bus message missing
    59 = Vehicle speed bus message missing
    60 = Engine RPM bus message missing
    61 = OAT bus message missing
    62 = Display intensity bus message missing
    63 = VIN number bus message missing
    64 = Raw OAT bus message was missing
    65 = Reserved
    66 = Reserved
    67 = Reserved

    Sourced from http://www.jgcparts.com/faultcodes.html I will be buying this kit shortly....

    David

  4. #4
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    No prob OW. Nope I got clever and got a Laredo, which does not suffer the same problem as it only has one blend door, not two
    2004 Jeep Grand Cherokee Laredo (WG) 4.7L V8 - Oh the joy

    <a href="http://www.fuelly.com/driver/mfour/grand-cherokee" target="_blank"><img src="https://badges.fuelly.com/images/smallsig-metric/118642.png" width="135" height="50" alt="Fuelly" title="Share and compare MPG at Fuelly" border="0" style="border:solid #ccc 1px;padding:4px;background:#fff;"/></a>

  5. #5
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    OW, David, I have that problem too and it's freaking cold in Cape Town this year!!!! If you plan to attempt this operation let me know what the solution / outcome is please!!!
    It's a J e e p thing...........you would'nt understand!!
    Ek ry met stok-ou Jeeps, want dan dink almal ek's al lankal ryk!!
    Gee vir my 'n Coke......skoon Coke......met 'n dubbel Brannas in asseblief!!

  6. #6
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    Yip, laredo is the way to go... Haha.

  7. #7
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    I too am watching this thread closely ... I have a No heat but also no aircon (that's cause there is no gas in it Allan ... tut tut)

  8. #8
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    Brilliant found OceanWanderer
    KTM 950 Adventure
    Opel Zafira 1.9 CDTi Panoramic
    Sold: 2004 GC CRD Overland

  9. #9
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    Hello All,

    Quick update for everybody, I sent an email to the States this morning asking for a total price on:
    Jeep Badges: $9.95 (two Jeep badges)
    Blender Flaps: $150
    Door panel clips: $9.95

    If I get no response or one that I don like (in terms of postage cost) I am going to get a premium subscription on myus.com and take it from there....

    I will let you know when I get a response.

    David

  10. #10
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    $89 for a Full 2" lift kit. Not bad at all.
    KTM 950 Adventure
    Opel Zafira 1.9 CDTi Panoramic
    Sold: 2004 GC CRD Overland

  11. #11
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    Quote Originally Posted by Fillistyn View Post
    $89 for a Full 2" lift kit. Not bad at all.
    From where?

  12. #12
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    Quote Originally Posted by cainslie View Post
    From where?
    http://www.jgcparts.com/faultcodes.html
    KTM 950 Adventure
    Opel Zafira 1.9 CDTi Panoramic
    Sold: 2004 GC CRD Overland

  13. #13
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  14. #14
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  15. #15
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    Ebay

    Aluminium Blend doors for sale.

    http://www.ebay.co.uk/itm/JEEP-WG-WJ...item5d34bb18c3
    KTM 950 Adventure
    Opel Zafira 1.9 CDTi Panoramic
    Sold: 2004 GC CRD Overland

  16. #16
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    I'm in for a set. Who can bring them in for us?
    It's a J e e p thing...........you would'nt understand!!
    Ek ry met stok-ou Jeeps, want dan dink almal ek's al lankal ryk!!
    Gee vir my 'n Coke......skoon Coke......met 'n dubbel Brannas in asseblief!!

  17. #17
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    I ordered door panels clips from jgcparts.com today. Paid for them. They are already shipped and on their way. I am sure one of use can order 5 or 10 sets of the door blenders and bring them in with one shipment. JGCPARTS offer free shipping world wide.

    i want to see what happens with the small parts before moving onto the larger parts ... value I mean

  18. #18
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    Allan,

    Please keep me updated on what happens, I have had zero feedback from the email address.

    David

  19. #19
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    Will do.

    I got a reply to say my goods have been shipped. Shipped the same day I paid for them. I'm impressed so far.

  20. #20
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    Allan

    Have your door clips arrived?

    Cheers

    David

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