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Bleeding acd/ayc pump

Old Jul 21, 2013 | 07:30 PM
  #16  
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So i tried all the things suggested and i came to the conclusion that either my pump is bad or its simply just not cutting on. Tried all the bleeding procedure and nothing also gpt a christmas tree dash with the awc service required. Asc also stays off pressing the button does nothing and the snow gravel tarmac toggle switch does nothing either. Any suggestions anyone?
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Old Jul 22, 2013 | 07:51 AM
  #17  
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Hm. My ACD/AYC pump is blown, but my ASC still works. My current routine involves starting the car, waiting for the "service required" warning, pressing and holding the ASC button to disable the single-wheel braking aid for the AYC, and then pressing and holding the INFO button until all of the warnings go away.

I agree that the mode toggle ceases to work when the ACD/AYC pump is blown, which makes sense.

But I'm surprised that your ASC was affected, if what you really have is a blown pump. Have you had the code read? One thing that can cause both the ASC and ACD/AYC functions to all shut off at once is a broken wheel-speed sensor, instead.
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Old Jul 22, 2013 | 06:53 PM
  #18  
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Originally Posted by Iowa999
Hm. My ACD/AYC pump is blown, but my ASC still works. My current routine involves starting the car, waiting for the "service required" warning, pressing and holding the ASC button to disable the single-wheel braking aid for the AYC, and then pressing and holding the INFO button until all of the warnings go away.

I agree that the mode toggle ceases to work when the ACD/AYC pump is blown, which makes sense.

But I'm surprised that your ASC was affected, if what you really have is a blown pump. Have you had the code read? One thing that can cause both the ASC and ACD/AYC functions to all shut off at once is a broken wheel-speed sensor, instead.
Same process for me when I start my car... Stupid pump!!!
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Old Jul 22, 2013 | 07:13 PM
  #19  
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Well update drove the car and the steering wheel is tilted a bit to the right when driving straighy so im sure the angle sensor is affected and ive heard that can cause all the lights to come on aswell
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Old Jul 22, 2013 | 09:27 PM
  #20  
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Yes, if the steering wheel is consistently angled by more than X degrees (where I have no clue what X is, so don't ask me), then both the ASC and AYC shut down. Your pump may be fine.
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Old Jul 26, 2013 | 03:51 AM
  #21  
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ya i used a family member the car doesnt make that much power at idle. besides if he wasnt there i would have used my foot to slow the tire down. the process did take a little while, but so far i haven't had any issues.
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Old Jul 26, 2013 | 09:02 AM
  #22  
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Im going to try that again since i have to fix my steering first and then Hopefully the pump comes back on. What i found weird is that my fluid level is still going down but i see no leaks anywhere
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Old Jul 26, 2013 | 09:32 AM
  #23  
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The fluid goes down when the pump comes on (since some is stored in the accumulator). The pump still starts up, even when something else will disable the system, such as an always-tilted steering wheel. Thus, that your fluid goes down is a really good sign, since it suggests that your pump is OK. Just get the car aligned (with fingers crossed) and all could be fine.
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Old Jul 26, 2013 | 09:53 AM
  #24  
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cool thats a bit of a relief because I was getting worried
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