ACC error code 11-revisited - insight please? - Saab 9-5 Bulletin Board - Saabnet.com
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ACC error code 11-revisited - insight please?
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Posted by three_jeeps [Email] (more from three_jeeps) on Fri, 16 Aug 2019 20:39:04 Share Post by Email
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I made a post earlier that my 2004 9-5 arc was showing ACC error code 11. I also noted that the
fitting of the blend door shaft looked like this:
Click Here
Much appreciated advice from folks here guided me to the TSB which explained the new arm and shaft that I needed to get. They arrived yesterday and I installed them today:

Blend Door Arm - Front (Temperature) 5049135
Blend Door Shaft - Driver Side Front (Temperature)12765864

After reassembly I recalibrated the ACC and code 11 shows up again! Aww, NUTS! I watched the arms on both the RHS stepper motors and they both move and the metal rods that go to the flaps move, don't seem to be binding. (Before I put the new motor shaft on, I checked the metal rods for movement and they moved freely, and I could hear the flaps close/seat at tend of travel)
So what could be the problem???
I am thinking the blue hexagonal shaft may be broken inside the heater box? but there are no switch sensors to indicate end of travel, so how does the system know? Unless it looks at motor current to sense it hit a hard stop?

I did disassemble the stepper motor from the gear case thinking I had to do that to insert the new shaft. Turns out there were two small plastic pins that oriented the motor with the case that broke when I separated it. I reassembled it correctly and it does work. I don't think that is the problem.

Could the code be left over and I need to disconnect the battery to clear the codes? (I thought re-calibrating automatically cleared any codes)
Any guidance is greatly appreciated as I am really stuck.
Thanks
J

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