Just Commodores Forum Community

It takes just a moment to join our fantastic community

Register

VZ Won’t Start and system not showing any faults

Discussion in 'VZ Holden Commodore (2004 - 2006)' started by Hen1999, Dec 2, 2019.

Tags:
  1. Hen1999

    Hen1999 New Member

    Messages:
    9
    Likes Received:
    2
    Trophy Points:
    3
    Joined:
    Dec 2, 2019
    Location:
    Geelong
    Members Ride:
    2004 VZ Alloytec Commodore
    Last Thursday I went into my car to go to work and it would start. The engine would turn but wouldn’t start. I thought it was the battery because the boot was left open but RACV came out, did a battery test and all was fine, he said the key was the issue.

    After getting a new key programmed the car started fine but when I got home that night it wouldn’t start at all. Next morning to go to work it started, leaving work it started but when I want to drive it when I get home it won’t start.

    The locksmith that did my key did a system check and came up with nothing. When I put the key in and turn it, everything lights up and after it does the system check it says gives the SVS signal, even though my car was serviced 3,000 kms ago. Starting to think either ignition barrel or ECU

    here’s what the car is doing
     
  2. ant797

    ant797 Member

    Messages:
    141
    Likes Received:
    10
    Trophy Points:
    18
    Joined:
    Nov 29, 2012
    Location:
    bunbury
    Members Ride:
    vx calais supercharged
    I think its the bcm that deals with the key and security
     
    Hen1999 likes this.
  3. krusing

    krusing Well-Known Member

    Messages:
    775
    Likes Received:
    281
    Trophy Points:
    63
    Joined:
    Jun 21, 2014
    Location:
    Melbourne
    Members Ride:
    2002 VY L67 Calais Sedan, 2012 VE L77 Calais Wagon
    First try pressing the unlock Button on the Key head before inserting the key,
    Then try and start it,
    It seems like the Immobiliser, going by your clip,
    or a electrical plug and/or a earthing issue.
    I read somewhere, someone else had a similar issue, with earthing,
    or it may of been the start motor connections ?
    At lease you have a starting point to look for the fault,
     
    Last edited: Dec 2, 2019
    Hen1999 likes this.
  4. Hen1999

    Hen1999 New Member

    Messages:
    9
    Likes Received:
    2
    Trophy Points:
    3
    Joined:
    Dec 2, 2019
    Location:
    Geelong
    Members Ride:
    2004 VZ Alloytec Commodore
    That’s my though, the locksmith said himself he thinks it’s the BCM as well
     
  5. Hen1999

    Hen1999 New Member

    Messages:
    9
    Likes Received:
    2
    Trophy Points:
    3
    Joined:
    Dec 2, 2019
    Location:
    Geelong
    Members Ride:
    2004 VZ Alloytec Commodore
    No luck with trying that, did that last week too. I did have a look at the wiring from the ignition and they all looked good, same with the plugs to the ecu and everything looked good. It’s annoying because I feel as though the problem is between the ignition to the ecu. But then again, I’m just a plumber :p
     
  6. krusing

    krusing Well-Known Member

    Messages:
    775
    Likes Received:
    281
    Trophy Points:
    63
    Joined:
    Jun 21, 2014
    Location:
    Melbourne
    Members Ride:
    2002 VY L67 Calais Sedan, 2012 VE L77 Calais Wagon
    If you can get the car scanned, because it may have a silent error that wont activate the MIL,
    Or
    their could be an error in the BCM history, that could hold the Key [no pun intended] to the non starting issue.
     
  7. Hen1999

    Hen1999 New Member

    Messages:
    9
    Likes Received:
    2
    Trophy Points:
    3
    Joined:
    Dec 2, 2019
    Location:
    Geelong
    Members Ride:
    2004 VZ Alloytec Commodore
    How likely is it that I stuffed the BCM from trying to start the car when the key was stuffed. By the way the key that I was using was the same one I’ve had since buying the car, for a few months though the key was falling apart and I neglected getting it fixed straight a way. There was never any problems with the car till last week and since buying a new key, I’m thinking that all the time’s I tried starting it with a stuffed key might caused problems within
     
  8. krusing

    krusing Well-Known Member

    Messages:
    775
    Likes Received:
    281
    Trophy Points:
    63
    Joined:
    Jun 21, 2014
    Location:
    Melbourne
    Members Ride:
    2002 VY L67 Calais Sedan, 2012 VE L77 Calais Wagon
    this may even be how it was programmed in to the car,
    In saying that, did they Duplicate the Key Head ?
    Because the Original Key Head programming maybe the error in the BCM,
    So they have just duplicated the error ?
    I stand corrected if I am wrong.
     
  9. krusing

    krusing Well-Known Member

    Messages:
    775
    Likes Received:
    281
    Trophy Points:
    63
    Joined:
    Jun 21, 2014
    Location:
    Melbourne
    Members Ride:
    2002 VY L67 Calais Sedan, 2012 VE L77 Calais Wagon
    I had a friend that has the exact same issue as you,
    So I said to him to wiggle the Key Head around [not to much to break the Key Off] so the pin on the key would contact the slipring around the ignition switch, and he got it started,
    I told him to come straight around [to my place] and put the scanner in it,
    it had a slip ring error [which does not activate the MIL], and he was using an old Key Head,
    I had one in stock, placed the Key Blade into the new Key Head, binned the old one, after destroying it,
    Went out and programmed the new one in,
    Started first time, and has every time, as it a daily car,
    This was 8 months ago.
    The rest is history.
     
  10. Jhovel

    Jhovel New Member

    Messages:
    7
    Likes Received:
    3
    Trophy Points:
    3
    Joined:
    Sep 10, 2019
    Location:
    Bendigo, Vic
    Members Ride:
    VZ Executive Wagon
    I had the exact same issue with my VZ - except that it made a lot of cam chain noise for the past 5000kms.
    Had all kinds of experts check everything, got a new key cut on their advice, burn out a starter motor trying to get it running (because it would start for a second or two every now and then). Tried every combination of buttons and door locks - as advised by the experts.
    In the end, aftere days and days of reearching the issue - including finding and searching this forum - I came to the conclusion that the only thing left was the cam chains and tensioners worn out.
    Replaced those (see my thread here) and (almost) everything is back to normal and starting is totally reliable and nice and quiet.
    PS: the remaining issue is that it won't rev over 4000rpm, I'm suspecting that the inlet cam advance mechanism is clogged with gunk.....)
    Cheers,
    Joe
     
  11. Hen1999

    Hen1999 New Member

    Messages:
    9
    Likes Received:
    2
    Trophy Points:
    3
    Joined:
    Dec 2, 2019
    Location:
    Geelong
    Members Ride:
    2004 VZ Alloytec Commodore
    It’s possible because it is the same key head, only difference between the old key and newly programmed one, the engine doesn’t turn when turning the ignition
     
  12. Hen1999

    Hen1999 New Member

    Messages:
    9
    Likes Received:
    2
    Trophy Points:
    3
    Joined:
    Dec 2, 2019
    Location:
    Geelong
    Members Ride:
    2004 VZ Alloytec Commodore
    That’s the same as me. Chucked out the old key head, programmed a new one and still using the old key blade. With the old key head I was able to pull the key apart, check the clips that hold the fob were tight, made sure everything was screwed in and nothing damaged and this would start the car and once but that was it. I ended up pulling over Friday at a KFC and couldn’t start the car again, so I that’s when I got the new key and was on my way thinking my problems were sorted but they’re still continuing unfortunately.
     
  13. Hen1999

    Hen1999 New Member

    Messages:
    9
    Likes Received:
    2
    Trophy Points:
    3
    Joined:
    Dec 2, 2019
    Location:
    Geelong
    Members Ride:
    2004 VZ Alloytec Commodore
    Hopefully that isn’t my problem, difference being that my engine doesn’t turn or give me anything when turning key in ignition. Only thing it does do and you might faintly hear it in the video but when I turn the key you can hear a power type noise? A quiet whirring noise is the best to describe it, as I said said you can slightly hear it in the video
     
  14. Hen1999

    Hen1999 New Member

    Messages:
    9
    Likes Received:
    2
    Trophy Points:
    3
    Joined:
    Dec 2, 2019
    Location:
    Geelong
    Members Ride:
    2004 VZ Alloytec Commodore
    Btw Ignore the sound of the antenna going up
     
  15. Hen1999

    Hen1999 New Member

    Messages:
    9
    Likes Received:
    2
    Trophy Points:
    3
    Joined:
    Dec 2, 2019
    Location:
    Geelong
    Members Ride:
    2004 VZ Alloytec Commodore
    UPDATE
    Saw a mechanic today and the car has been working fine all day so I was expecting nothing to come up on a scan. Two problems did come up, can’t remember the first one but one of them was the fuel relay. He took Out the start relay and swapped it with the high beam relay(the one next to it, sorry if it’s the wrong name). My car hasn’t been giving any issues today but I will check later if it’ll start/not start. This is definitely a relief because I’ve been assuming the worst thinking it’s a ecu/BCM problem
     
    commodore665 and Fu Manchu like this.

Share This Page