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  1. #1

    Another Question On 120 Series Air Suspension

    Hi All
    I'm a Newby in here but I'm guilty of lurking for awhile. You guys all put up heaps of helpful stuff.
    I've had the same issue with my 05 Grande that a lot of you have. I blew an airbag on a camping trip and have replaced them both. But I can't get the system to kick back in. I've got power to everything except the compressor. I hotwired it so I know it still works but even when I do that only one side fills up the left bag gets no air going to it. The lines all seem okay and I can't hear any leaks. I pulled the sensors and tested them with my multimeter and I think they are okay. I unplugged the suspension ecu and let it sit but I just can't get it to fire up. Does anyone have any advice they could give please? Maybe the solenoid on the air tank has packed it in? I'm not sure and I'm running out of ideas and sanity 😂 Thanks in advance.

  2. #2
    Administrator Piggy's Avatar
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    Don't over cook the question. First rule.

    The compressor and height system will shut down for progressively longer periods if it can't fill the bags. (Leak burst whatever).
    It will be 10mins the first couple times then go to 70 minutes. !!

    On mine it did this.
    I reset all the trouble codes after installing a new bag.
    Disconnected battery for 60.
    Plugged back in left for 1.5 hours. Turned car on and it started up.

    When you play around with them it can extend the shutdown time.

  3. #3
    Hey, thanks for the info. I gave it a go and didn't have any luck. It's got me beat. Cheers

  4. #4
    Administrator Piggy's Avatar
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    How did you clear the codes? It should have some errors showing.

  5. #5
    I just unplugged the suspension ecu took the fuses out and disconnected the battery.

  6. #6
    Administrator Piggy's Avatar
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    Codes will still be in it then. You'll need a tech stream, scangauge or some other way of clearing codes.

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