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Display reads "alwheel drive disabled - 2003 Pontiac Aztek

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You'll need someone with a scan tool to see what is actually wrong but I've replaced a number of a part called a "Differential Check Valve" for this type of problem. When this part fails it can send a faulty signal the the controller indicting an overheated rear differential or it can just simply quit working altogether. Either type of failure will cause the "AWD Disabled" message to come on and the all wheel drive system will be disabled as a result. If you end up replacing this part I would strongly recommend replacing the fluid in the differential at the same time as I've seen a number of other problems caused by dirty oil in these. It takes a special GM only lubricant in these and do not use any other kind of fluid in it as they won't work correctly with anything else. Good luck and hope this helps!

Posted on Jul 30, 2010


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If the CEL is still on, I'd have the codes read to see what triggered it. Usually, if a problem is not detected again for three consecutive driving cycles, the CEL will go out (although the code is stored for a longer time and can still be read).
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Just perform this sequence within 10 seconds:

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What will happen if i remove the shaft for the frontwheel drive from this alwheel drive 1998 chey astro

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Our Saturn Relay is displaying a warning message that the All Wheel Drive is disabled. All the owners manual says is to check the rear differential. The fluid level is fine. What should I try next?

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Overhead display shows vehicle not in park while driving and memory seat disabled

Not sure about the overhead display problem.. .however to fix the memory seat disabled issue:

The car not be moving, it has to be in Park and no seatbelt on. Try that and see if the seats work.


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"All wheel drive disabled" light keeps coming on

It sounds like sensor issue in the controls.

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