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VE HVAC Whats the Difference between different Modules

Discussion in 'VE Holden Commodore (2006 - 2013)' started by VFSV6FORME, Nov 28, 2019.

  1. VFSV6FORME

    VFSV6FORME Well-Known Member

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    Daughter typing, shes faster than me.

    I have decided to open a different topic about the HVACs used on the VE's. Now I bought a replacement HVAC module for my cheap VE and the one I got is for an omega, anniversary or any other single zone HVAC system.

    Unfortunately I did not record the part numbers off the original HVAC on the car now. The one that forgets to turn on the front face vents every now and then. Yes I shouldve taken part numbers when I had the glove box out but when the ebay replacement arrived I removed the existing HVAC unit out today and found that both were completely different in their numbers. I dont know which one is the part number.

    Now I still tried it and it worked perfect for the first 20 minutes. Everything was accounted for. All vents worked perfectly. Everything was 100% but one time it forgot to start the air con on my face or ignition on it was on my face but as soon as you start the car it disappeared. Now it only did this once and after this it was okay. I cannot test it all the time like this, stop and start, stop and start. The car and the air con just for testing purposes only otherwise I might end up damaging something else.

    I will give you the figures of both HVAC control modules and possibly someone might know why they are different considering it should come from the same car.

    Original factory HVAC control module
    VE HCM
    A2C53246143
    AIPL H071085016
    20080916093511
    OP: 4003
    SW: 15
    HW: 7
    CL OR CI: 03

    Ebay HVAC control module
    VE HCM
    A2C53246143
    AIPL: H071036061
    20100422125520
    OP: 2940
    SW: 15
    HW: 9
    Cl OR CI: 05

    Can anyone that knows these HVACs, what do all the specs mean? They must mean something e.g. SW = 15, HW = 9, CI OR CL = 05 for the ebay one of course its different on the genuine unit. So the million dollar question is, what does these specs mean?
     
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  2. VFSV6FORME

    VFSV6FORME Well-Known Member

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    The one thing that I have noticed with the ebay HVAC is when I select the mode for just the windscreen ONLY I feel some Air (very Little) coming from the Face Vents. Now I think that the Original HVAC did not do this. No doubt those parameters/codes on the HVAC has something to do with this
     
  3. Fu Manchu

    Fu Manchu Well-Known Member

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    I noticed ours (dual zone) did that for a bit after I rebuilt it all.

    It doesn’t now though.

    It bugged me because, of course, I had just disassembled it and a feeling of dread came over me thinking I might have put something back in wrong and could see myself redoing the huge job I thought I had just completed.
     
  4. VFSV6FORME

    VFSV6FORME Well-Known Member

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    They not to much work to removing the HVAC. The big plug is harder as it to close to a item and you need two hands to disconnect or a special tool that pushed a clip out then you need to pull it out. I trying to find out what does OP, SW, HW, and CL or CI mean. Also looked at ebay no one has the one like the original one from the Ve (the specs Above)
     
  5. Fu Manchu

    Fu Manchu Well-Known Member

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    The module is easy.

    The HVAC assembly is not, and requires the entire forward interior to be removed except the steering column.
     
  6. VFSV6FORME

    VFSV6FORME Well-Known Member

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    O yes I can have the HVAC Modle out in 5 minute but not the Later.
    I need to find out what the specs are those OP,SW,.HW and CI or Cl
     
  7. syked

    syked Donating Member

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    The eBay module is definitely looks newer.
    20100422125520 looks like a time stamp i.e
    Year 2010
    Month 04
    Date 22
    Then time in hour, minutes and seconds

    This also matches up with newer HW (hardware) revision

    SW is software revision

    no idea what OP is (maybe options) or CI or CI is

    Main thing is that it's working :D
     
  8. Fu Manchu

    Fu Manchu Well-Known Member

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    I'm digging through stuff in Midsomer (Factory manual) and haven't even come close to Detective Inspector Syked break down.

    (I've stayed in the real Midsomer last year, we survived)
     
    Last edited: Nov 29, 2019
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  9. VFSV6FORME

    VFSV6FORME Well-Known Member

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    Yes i was Digging for Acronyms for HVAC and I came up with the same but Still want to purchase the same as the original so what I Need it the Part Number so WHICH ONE IS the Part Number out of that lot.
    I say Hardware and Software is important.
     
  10. VFSV6FORME

    VFSV6FORME Well-Known Member

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    Yesterday I dismantled the HVAC Module to see if I can find Swollen Capacitors/ dry joints/ other and the Main 3 Capacitors were ok but what I was surprised when the car is off the key is out of the Ignition the Main Cable on the PCB is marked as Motor and ground have 12.3Volts on the ends of the red and black lead. Strange to have power to go into them when the ignition is off but the printed Circuit Board say its Motor and Ground so does the lid but how does it has 12 volts going to the motor and has 12.3v is there if its a motor lead itself. Need to investigate.
     
  11. VFSV6FORME

    VFSV6FORME Well-Known Member

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    Yes the Main issue I have with Air Con is.
    1/ Make sure you select the first setting face only, Turn the Ignition on, Start the Fan the Fan starts, start the Engine and the Fan stops same goes if you select the compressor
    after two or 3 goes it goes to
    2/ Make sure you select the first setting face only, Turn the Ignition on, Start the Fan the Fan DOES NOT START, start the Engine and the Fan starts up same goes if you select the compressor. Yes its opposite.

    Re- learn it and it behave for a while but eventually fails. PLEASE Take note that both HVAC modules have the same issue. Possible they are both defective, being the original and the Ebay one. I'm trying to identify one component on the PCB, it look like a battery but if it is is the strangest PCB battery I have ever seen. tested the two legs and has only 0.5V coming out. The PCB is made from siemens and has good quality soldering on board.
     
  12. Fu Manchu

    Fu Manchu Well-Known Member

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    Don't forget there is a delay for the accessories etc after the key is removed.
    Ours won't go off until the door is opened and then when it is closed again and locked, lights stay on for the set time and the dash has kms showing for a certain time. Then everything shuts down.
    Maybe a minute or two all up.

    The HVAC modules are often defective and could easily be that you also got a dodgy one from the wrecker. They wouldn't know it was. It wouldn't be deliberate.
     
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  13. Fu Manchu

    Fu Manchu Well-Known Member

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    Part number 20100422125520.
    Remember part numbers often change with supplier changes or updated components. They don't mean they aren't interchangeable.
     
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  14. syked

    syked Donating Member

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    @VFSV6FORME pass on the last 8 digits of your VIN and check what GM part number pops up. I have a feeling it's 92227831

    But there so many different ones of these modules
     
  15. VFSV6FORME

    VFSV6FORME Well-Known Member

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    Forgot about this, same as other on the car
     
  16. VFSV6FORME

    VFSV6FORME Well-Known Member

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    I put the Original one back in the Car, Do not learn anything, and it ok. Tried all tricks to stuff it up and worked perfectly but tomorrow is another day and tomorrow take the car to get the front painted.
     
  17. syked

    syked Donating Member

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    Hopefully it stays that way. 92227831 is the correct GM part number anyway
     
  18. syked

    syked Donating Member

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    looks like there was another update in part numbers from October 2010. Newer part number is 92251463
     
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  19. VFSV6FORME

    VFSV6FORME Well-Known Member

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    Thank you for this, will write this info down. So far the HVAC Module is behaving itself (Sound like my Sons Statesman)
     
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