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All wheel drive not working

Tiny
BRIAN CAMPBELL2
  • MEMBER
  • 2009 SAAB 9-7X
  • 5.3L
  • V8
  • 4WD
  • AUTOMATIC
  • 130,000 MILES
My AWD is not working.
Thursday, February 1st, 2018 AT 8:46 AM

5 Replies

Tiny
KEN L
  • MASTER CERTIFIED MECHANIC
  • 42,895 POSTS
Hello,

This can be because you have a wheel speed sensor that is out. Can you follow this video to scan the ABS this will tell us whats going on?

https://youtu.be/rTtAnsOlZU4

Please let us know what you find.

Cheers, Ken
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Friday, February 2nd, 2018 AT 1:32 PM
Tiny
BRIAN CAMPBELL2
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Hi, I do not have an AWD code showing on the scanner. Also, I do not have a check engine light on.
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Friday, February 2nd, 2018 AT 2:53 PM
Tiny
KEN L
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Even though the light is not on it may still have codes. This will be an ABS system scan which works the traction control/AWD. You can get a scanner for about $110.00 on Amazon.
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Saturday, February 3rd, 2018 AT 10:08 AM
Tiny
BRIAN CAMPBELL2
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Ken you are not understanding what I am saying, I have a scanner that reads ABS. It is not showing a code.
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Saturday, February 3rd, 2018 AT 3:10 PM
Tiny
KEN L
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Okay, sorry lets try a different approach. Here is the wiring diagram for the all wheel drive unit so we can see how it works. There are three fuses I would check first # 8, 49 and 22 here is a guide to help us check the fuses.

https://www.2carpros.com/articles/how-to-check-a-car-fuse

Here are the fuse panel locations and identification.

If the fuses check out I would see if the encoder motor is getting power and if so I would replace the encoder.

Check out the diagrams (below).

Let us know what happens and please upload pictures or videos of the problem.

Cheers, Ken
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Sunday, February 4th, 2018 AT 11:28 AM

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