2008 gx 470 air suspension ecu

Discussion in '120-Series Toyotas' started by sea bass, Jul 12, 2018.

  1. sea bass

    sea bass SILVER Star

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    I'm thinking my ECU for the air suspension could be bad , the Hi-Lo buttons don't do anything at all there's no flashing off light no codes are thrown the compressor will not turn on but I did put 12 volts to it and it does work so I know the compressor is good that's why I'm thinking to ECU could be bad , my height sensors are adjusted properly I took them off and took them apart they looked good inside and appear to be okay II bought some coils and put them on for now but my wife really likes the air ride so I may go back to it, I'm looking for some info on what the problem could be or if anyone has a used ECU they might want to sell, I like the ride that the coils give but if I sell it in the future it will have more value any info would be helpful thanks . Also I know that both fuses and the compressor relay are good, when I turn the key on I can hear the solenoid coming on on the compressor something is not triggering the relay to turn on the compressor that's why I was thinking bad ECU , I know this has been talked about many times any help would be appreciated thanks
     
    Last edited: Jul 12, 2018
  2. evilorgoodtwin

    evilorgoodtwin SILVER Star

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    This sounds a lot like my 2004 gx470 issue after the dealer broke my air shocks. Basically, nothing worked via the switches but I could get my compressor to come on by using a jumper on the relay that activates it. Did your air shocks ever go completely flat? If and when they do, there is a fail safe that has to be over ridden. It took me awhile to figure out how to do it, but was easy enough after I knew how. I’m trying to remember what I did to get it working again.
     
  3. evilorgoodtwin

    evilorgoodtwin SILVER Star

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  4. sea bass

    sea bass SILVER Star

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  5. sea bass

    sea bass SILVER Star

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    I did jumper out 4 and 13 but I didn't know anything about pumping the brakes 8 times within 5 Seconds I'll give it a try
     
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  6. sea bass

    sea bass SILVER Star

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    So some people lost their radio settings after they reset it, and what do you mean by resetting the up and down button
     
  7. evilorgoodtwin

    evilorgoodtwin SILVER Star

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    To control all the windows from the drivers master switch you have to hold down each window switch individually until they reach the bottom and then hold for a few more seconds. Then roll up individually I think, I just do that and then when you’ve done all of them the master switch will work again. At least on my 2004
     
  8. sea bass

    sea bass SILVER Star

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    Yeah I know about that that's called normalization you have to do the sunroof too I'll try in a little while I'll report back
     
  9. sea bass

    sea bass SILVER Star

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    thank you evil or good twin that did the trick it worked jump out 4 and 13 and pump the brakes 8 * it reset itself high and low work and the compressor comes on now I have to decide whether to leave the coils in there or go back to my air suspension
     
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  10. evilorgoodtwin

    evilorgoodtwin SILVER Star

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    That’s awesome! Glad it worked. I would love to know what the coils feel like, but for now I’ve kept my air shocks and like them but I haven’t started wheeling it yet, that’ll be for my 2nd GX
     
  11. sea bass

    sea bass SILVER Star

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    Just an update I took the airbags and hook them up to the system and inflated them I do have a couple of pinhole leaks on one of them right where the fold is so I'm going to look in getting new airbags I don't think I'll go OEM too pricey they have some pretty good aftermarket ones, as for the ride we kind of like it it's a lot firmer of a ride especially going around corners

    IMAG0179.jpg

    15314425493953827941162848084003.jpg
     
    Last edited: Jul 12, 2018
  12. evilorgoodtwin

    evilorgoodtwin SILVER Star

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    Check eBay. I posted in my thread the dude that I got genuine Lexus airbags for $250 a pair. They didn’t come when he said so I thought I might not get them and found a set for $450 on lexuspartsnow. Both are really good prices. So now I have an extra pair for my next GX :bounce:
     
  13. sea bass

    sea bass SILVER Star

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    How about selling that extra pair of OEM air bags
     
  14. evilorgoodtwin

    evilorgoodtwin SILVER Star

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    Nah. I don’t know if I’d be able to get the same deal when mine blow up again. They are sitting wrapped up in Saran Wrap in their box on the shelf!
     
  15. sea bass

    sea bass SILVER Star

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    yep I understand I wouldn't sell him either I just picked up a set of OEM off flebay for 125 each I'm going back to air ride thank you for all your help
     
    Last edited: Jul 12, 2018
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