Author Topic: Graphite Green 9-5 Aero rescue  (Read 1765 times)

carrera

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Re: Graphite Green 9-5 Aero rescue
« Reply #45 on: 15 August 2019, 05:41:55 PM »
Well, the rear door, front wing and front PU are off to be painted, so that will make a huge change when they come back and are fitted.

Back to some of the minor stuff. The ACC was giving errors 08 and 11 which are translated as problems with the stepper motors and the mechanism, generally suspected to be either a broken plastic lever or spindle, so I decided to have a go at fixing that today. What a PITA.

I have had both left and right stepper motors off numerous times, and a bit more besides as I was working out how it all works. Even easier when you have a a spare heater box on the shelf. Both problems are now fixed, and it was the motors in both case.

On the right hand side access is very awkward, but there are only two 6mm hex screws that need undoing. The issue here was that something has gone wrong internally on the gear / motor interface. I discovered that the output shaft was free to turn, when a comparison with the other motors showed that they could not be turned by hand. A replacement motor cleared that error code.

On the left hand side access is easier, and the plastic lever and rods all seemed free to move. In fact they were liberally coated with white grease, so I just double checked that both the upper and lower flaps were moving correctly by moving the rod when the motor was out. After a number of removal and replacement exercises I could see / feel that the motor seemed to be wanting to drive beyond the range of the operating lever. I expect some sort of load or resistance sender would have detected that and switched power to the motor off so took the Kwik Fit school of engineering approach to diagnosis and fitted one of the speres I had. Problem solved and no more error codes. I am grateful that all the plastics were intact.

Does the above make sense, and is there any history of repairs being made to these stepper motors ?
9-5 Aero Estates, 2002 Cosmic Blue, 2002 Steel Grey, 2003 Graphite Green, 2003 9-5 Glacier Blue 2.0 saloon

sgould

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Re: Graphite Green 9-5 Aero rescue
« Reply #46 on: 15 August 2019, 08:03:49 PM »
I've not heard of any motors being repaired, only kits for repairing broken pivots and rods.
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carrera

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Re: Graphite Green 9-5 Aero rescue
« Reply #47 on: 16 August 2019, 11:28:17 AM »
Well, two more small torx screws and the covers are off revealing what I assume is a linear motor in two halves, plastic casings held together by many bent metal tabs. For the moment I have concluded that these are not designed for repair.

For the moment I am moving on, though by comparing the two removed motors I did notice that on the one where the shaft could be easily turned, the armature with the drive gear on it was extended compared to the other. The consequence is that the gear is not engaged in the mechanism to the shaft so the motor would be simply free to spin.

Out of interest, I discovered that while the plastic levers were good on this car, one of the ones on the breaker car was broken, still the motor was good, so making a good heater box out of two bad ones.  :)

Here's a photo that shows what they look like, which came from this page http://home.jtan.com/~joe/saab/code_08.htm which helped me yesterday. Of course whatever fixes code 08 can also fix code 11  ;)

9-5 Aero Estates, 2002 Cosmic Blue, 2002 Steel Grey, 2003 Graphite Green, 2003 9-5 Glacier Blue 2.0 saloon

carrera

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Re: Graphite Green 9-5 Aero rescue
« Reply #48 on: Today at 06:39:37 PM »
Door Mirrors, how difficult can they be  ::)

The car has black mirrors, which shall we say are a bit manky on the triangle and metal areas. Well , I say metal, but it seems to be more like rough chalk.

I have pulled the drivers side off, and looked at the design and it's very different to my blue Aero and all the other cars except for the Glacier Blue one. After consulting EPC I discover that door mirrors changed from 2003 MY and as this is a 2003 car it has the later design. And now it is time for the but. But while the car is an Aero and has the powered folding button on the dash the mirrors that are fitted are non power folding, as they only have the black power connection, not the white one. The connector from the loom is in place.

I have been reading around and it seems that there are differences between PMM for those that have memory seats and those that don't

Have I understood correctly ?

If I am looking for another set to fit, is there any way to identify which ones would work, other than by the twin electrical connectors, which is going to make identifying a suitable pair on ebay quite difficult

I  was testing the memory function for the seats and having confirmed the mirrors are electrically adjustable I went to store some new settings in position 3 and there was no ping. The seat is now dead and the 30A fuse 25 is not blown. Looks like I am going to have to start reading wiring diagrams to get the seat working again  :(  No doubt it will be some clever bus thing that is upset
9-5 Aero Estates, 2002 Cosmic Blue, 2002 Steel Grey, 2003 Graphite Green, 2003 9-5 Glacier Blue 2.0 saloon

sgould

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Re: Graphite Green 9-5 Aero rescue
« Reply #49 on: Today at 07:44:23 PM »
I'm not with my info at the moment, but the 2003-on mirror heads are a different shape.  They use the same glass,  as the ng9-3.

The memory seats on the 9-5 are self contained as far as the memory and adjustment is concerned.  The I-Bus connection is, I believe, only there to let the car know what is going on.  So I-Bus is for the mirror memory to get the info it needs.  There may  be some other odd bits.

The basic logic of the memory seats is that both front seats have permanent power.  It's the passenger seat that has the control relay that turns the system on via a signal wire to the TWICE which earths it (green wire from memory).  Once on, the passenger seat will work.  Theres a blue wire from pin 28(? need to check this) to the same pin on the driver's seat.  Once the blue wire is live, the memory control module in the driver's seat comes live and you can move that seat as well.  If you by-pass the

The TWICE control turns the system on when the ignition is live. Also when the front door opens, and leaves it on for 30 seconds.  Maybe more.  If you don't use this, you can just earth the green(?) wire from the passenger seat relay and the seats will be operable at any time.  Not sure if this flattens the battery.  I think not though.
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