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VE Wagon Parking warning ECU location

Discussion in 'VE Holden Commodore (2006 - 2013)' started by Plainwhitevy, Jan 28, 2020.

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  1. Plainwhitevy

    Plainwhitevy Member

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    My Series 2 Sportswagon has (had) a warning sensor for if something wandered into my path when reversing. A year ago it stopped working. Not particularly bothered, but it has a warning buzzer that sounds whenever I start and there is a warning in my dash all of the time about it. This is irritating to the point that I now want to fix the stupid thing.
    Last service Holden diagnosed it as a faulty parking sensor ECU and quoted me $450 to replace. I can buy a replacement ECU and do it, but not sure where it is. The service guy at Holden said I need to drop the rear bumper to get to it, but I can’t see even Holden putting an ECU outside of the body shell. Can anyone tell me where it is located?
     
  2. krusing

    krusing Well-Known Member

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    The Reversing Sensor Module is adjacent the Battery,
    You need the remove the internal moulding around that area.
    You will see a black box just up a little, and further in from the battery.
    [As per image attached]
    Don't buy a new one, get one from a Wrecker, shouldn't be no more than $30.
    Dealer price probably $300 inc. + fitting

    When they say remove the bumper, they would of been talking about replacing an actual reversing sensor you would assume.
    If you have a Faulty Sensor, that is probably the Fault/MIL that is being displayed, best to get it scanned to see which one it is.
    If it is only a reversing sensor, the wreckers price approx. $20,
    That's when you need to remove the bumper cover to replace it.
    Remembering, you will have to try and find one of the same colour of your car,
    If not, get a spray pack and paint it yourself.

    Some of these Service Reception people have no idea what they are saying
    Remove the Bumper to replace the Reversing ECU, NFI.
    I guess it's a case of -
    " If you cant dazzle them with brilliance, Baffle them with Bull"
     

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    Last edited: Jan 29, 2020
  3. RossK

    RossK Member

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    Sorry to say, but don't trust your dealer, check it out yourself.
    Our VE had an intermittant rear parking sensor fault that the dealer could never find, this started when the car was 1 year old.
    When the car was 6 years old it stopped altogether, diagnosed as faulty ECU by the dealer.
    Cost was prohibitive so I checked it out myself and found the wiring harness from the sensors to the ECU unplugged.
    Re-connected it and they have been fine for the last 3 years.
     
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  4. Plainwhitevy

    Plainwhitevy Member

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    Thank you very much Krusing and Rossi! I’ll get on to it. Now I am clear what I am looking for I’ll locate it and check the connections, then replace the module if it still shows the fault.
    Not today though..... it’s bl@@dy hot here in Adelaide. I’ll let you know how I go.
     
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  5. krusing

    krusing Well-Known Member

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    I forgot to mention,
    the Reversing Sensor Loom route, and plug,
    is located behind Left Rear Wheel, up behind the Bumper Cover.
     
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  6. Plainwhitevy

    Plainwhitevy Member

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  7. krusing

    krusing Well-Known Member

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    They are heaps cheaper at the Wreckers.

    They should be a hot swap, especial if they are the same part number,
    Is that the same part number as yours ?
     
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  8. Plainwhitevy

    Plainwhitevy Member

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    I don’t think they are selling a part. It looks to me that you pay, then they give you an address to send your ecu, they reflash it with your VIN number and send it back.
     
  9. Fu Manchu

    Fu Manchu Well-Known Member

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    As far as I knew, these were not VIN matched. A modular extra sometimes installed by dealers.

    *Edit:
    Just learned something new :)
    Went digging. They are VIN matched and connected to the low speed serial data circuit.
    A tech 2 should be able to do that, or, yes, the service in the link.

    I'd be inclined to connect up a second hand one and just see if it works anyway.
     
    Last edited: Jan 30, 2020
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  10. krusing

    krusing Well-Known Member

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    Did we have a result/fix for this ?,
    as it would be interesting to find out.
     
  11. Plainwhitevy

    Plainwhitevy Member

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    Hopefully find out tomorrow. I pulled the ecu out yesterday and will get another one tomorrow. One plus is that the annoying noise and message has stopped with the ecu coming out. I could almost leave it there, but might as well fix it properly now....
    Edit 6 Feb. Turning into a bit of a saga. Contacted a business that fitted a head unit for another of my cars and he has a scan tool. Today he confirmed it will talk to my VE and confirmed the fault in the ECU. So I have ordered the secondhand replacement and it should be here next week. I’ll either plug it in and all will be fine, or take it back to him for him to get the ecu’s talking.
     
    Last edited: Feb 6, 2020
  12. Plainwhitevy

    Plainwhitevy Member

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    Hi Krusing, it took a while to work through, but I’ve decided to give up on it.
    Holden dealer would not agree to fit a secondhand part. Their reason , that they would have to warranty it if they fitted it doesn’t hold water. I have taken the vy there from new but now will go elsewhere.
    I found an auto electrician that had the scanner tool and was happy to help, pulled the old ecu and he checked first that he could read and work the Holden ecu. No worries.
    Then bought the secondhand part and took it too him to fit.
    Same issue. Turns out it is likely to be the buzzer rather than the ecu itself. Had a look this morning and can’t find it, so have put it all back together and called it quits.

    so, yes ecu needs to be mapped to new vehicle vin.
    Removing ecu gets rid of the alarm and dash warning, and the reverse warning.
    Still have the camera and that is OK for me......

    Have a good used parking ecu for sale.......
     
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  13. krusing

    krusing Well-Known Member

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    Pity your not in Melbourne, Southern Suburbs,
    As I would like to see the fault :confused:, and some how help to fix it,
    I'd take it on as a dare :), as its an interesting fault.o_O
     
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  14. Fu Manchu

    Fu Manchu Well-Known Member

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  15. krusing

    krusing Well-Known Member

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    Last edited: Feb 24, 2020 at 7:19 PM

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