Author Topic: Graphite Green 9-5 Aero rescue  (Read 9196 times)

carrera

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Re: Graphite Green 9-5 Aero rescue
« Reply #135 on: 26 April 2020, 11:21:38 AM »
After hours pouring over wiring diagrams, checking the wires to DICE etc, I was about to start checking the wiring lead references and decided to look at the rain sensing wiring and was struck by the scarcity of connections to DICE.......... but the one required wire was there.

 ::) :-[  :-[  :-[

Now, how do I test these buggers  :)

Interestingly, I still have a load of DICE connections that I cannot find in WIS, and some of the colour assignments seem wrong, but I will ignore that as everything else seems to be OK

I knew this was a high spec car, but didn't even think about them being fitted.
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sgould

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Re: Graphite Green 9-5 Aero rescue
« Reply #136 on: 26 April 2020, 11:37:15 AM »
Ah! :D

Has your screen ever been replaced?  I had two done and on both occasions the sensor was stuck back in the wrong place and didnít work.
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sgould

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Re: Graphite Green 9-5 Aero rescue
« Reply #137 on: 26 April 2020, 11:48:19 AM »
You can test it with a spray bottle. Turn the wiper on to intermittent. It wipes once.  Then spray water on the sensor. If you put on a lot the wipers will go to full speed.  If you do a gentle spray from a distance, you can simulate light rain.
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carrera

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Re: Graphite Green 9-5 Aero rescue
« Reply #138 on: 26 April 2020, 11:52:56 AM »
I have no idea, but judging by the screen being the correct tint and having an appropriate amount of little micro chips and scratches I would say not.

From my perspective, rain sensing wipers is one of those technological developments that just are not required

I was going to get the watering can out, but a spray bottle may be better ?

It seems I am at risk of having to read the drivers manual as well  :o

This I suppose is a good demonstration of how sleeping on a problem does allow you to see the solution.  :thumbsup:
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carrera

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Re: Graphite Green 9-5 Aero rescue
« Reply #139 on: 26 April 2020, 01:00:53 PM »
Rain sensing wipers functioning correctly  :thumbsup:

Looking back the signs were there all along

I had the manual intermittent wipers on my first 1998 9-5.  The two later cars both came with rain sensors in the windscreen.

and

B,.Secondly, when I try to activate the front wiper through Tech 2 it doesn't work.

When you try to activate front wipers in Tech 2 there is even a warning that says this will not work on a rain sensing wiper system. I just tried again.

This means that the electrical gremlins are pretty much sorted.

Couple of reversing sensors needed
Replace batteries in siren (4 more arrived yesterday)
Occasional drop outs on some of the pixels in SID

I'm going to try and find the errant purple wire for the lighter sockets and see if I can get that back to standard wiring, instead of piggy backing off another fuse
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sgould

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Re: Graphite Green 9-5 Aero rescue
« Reply #140 on: 26 April 2020, 04:56:32 PM »
If the windscreen has been refitted, the usual clue is a gap between the body and the rubber seal at the top edge.  If a gap is left, either by the rubber seal not reaching the roof metal, or it's been pushed up so tight that it curls back, you will hear a high pitched whistle as you drive along. :(  It took them three goes to get it right as far as the whistle went, but...

...when they fixed my windscreen they stuck the sensor bracket on with some plastic spacers.  These were the correct thickness, but not in the right place.  So the ring of the sensor was more or less in the right place, but the second part of the sensor behind the small hole didn't line up.   I tried to fix it, but the clear soft plastic of the sensor need to be tight up against the glass as well as lined up.  I got it lined up, but the filler/glue I used relaxed enough to let the sensor move away.
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carrera

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Re: Graphite Green 9-5 Aero rescue
« Reply #141 on: 26 April 2020, 05:07:22 PM »
I think that I have the original screen then, the gap along the top looks very even. Bit of a shame when you have to correct a "professionals" job.

The plastic cover behind the sensor does seem to have a broken plastic clip as it is not secure on the left hand side. That may have been down to me when I was trying to get into the sunroof mechanism, I don't know.

Daft question time. How do I reset the service counter. It's currently showing 292 days but I don't seem to be able to reset that using either SID (no message to clear) or through Tech 2
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sgould

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Re: Graphite Green 9-5 Aero rescue
« Reply #142 on: 26 April 2020, 08:31:31 PM »
The plastic cover clips always break.  I fixed the cover back with a small blob of Blutac! :)   I'm not sure, but I may have got that from Saab...

You can't reset the service counter yourself unless the "Time for service" message is showing.  You should be able to do it in Tech2, and it shouldn't be a problem. The 9-5 only has ne service schedule.  The 9-3 has a doubles service schedule, main and intermediate, and you have to reset both.  I've seen the option for clearing the message in Tech2, but I don't remember where.
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carrera

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Re: Graphite Green 9-5 Aero rescue
« Reply #143 on: 26 April 2020, 08:50:31 PM »
Worrying, I was thinking of the same bodge  ;)........... after removing for a further inspection

I have found the menu option in SID where is says days remaining, currently 292, gone into what I think was adjust and had an option of 365 days or 730 days. I made the selection, pressed OK and it doesn't seem to be modified.
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carrera

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Re: Graphite Green 9-5 Aero rescue
« Reply #144 on: 27 April 2020, 08:43:54 AM »
Another day, another sleep, another solution.

Just messing about this morning again and I went into "Recall Service Message"

Logic fail from me as there wasn't one, but that is the route to reset the counter. It now is back to 365 days.  :thumbsup:
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carrera

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Re: Graphite Green 9-5 Aero rescue
« Reply #145 on: 22 May 2020, 08:15:09 PM »
Swapped a couple of faulty reversing sensors over yesterday. All was working fine..........until one of the others decided to start playing up at the end of the day.

Bit of a rubbish day really. She broke down on me.  :'(

Low on fuel I put 5 litres in which should have been enough to get home, but 7 or 8 miles later on a long gentle incline there was a cough and no go. 4.7 miles walk to the next petrol station. I must have had my skates on I took just

She didn't want to start when I go back either and then I remembered I had a Tech 2 with me (it was late). I had two throttle position sensor faults and a CPS failure, it was apparently also in limp mode. The fuel pump was working so I cleared the codes and then she started. Most perplexing.

We got home but I could feel a slight irregular miss so I drove more quickly which seemed better  :Fawlty: ;D

So, fuel, fuel filter or CPS ?

The CPS was showing 910 ohms this morning, so in spec. Drove OK without a misfire so I'm starting with the cheap stuff and have a fuel filter on order and we'll take it from there.

Limp mode has me confused though
 
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sgould

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Re: Graphite Green 9-5 Aero rescue
« Reply #146 on: 22 May 2020, 08:22:55 PM »
Limp mode on the 9-5 needs a physical reset of the throttle body and the code clearing.  If you leave the code on the ECU, it will trip again.

I had a CPS that was within spec at 20ļC which is the datum that Saab give.  But they don't give a resistance at any other temp.  I checked mine when hot and it was over 1000 Ω.  I don't know if that was normal, but I changed it and the problem went away.
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carrera

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Re: Graphite Green 9-5 Aero rescue
« Reply #147 on: 22 May 2020, 08:35:02 PM »
At 23:30 last night quite frankly I wasn't too interested in the various pieces of advice Tech 2 was giving me about the reset process so I just pretended I had done the work, cleared the code and it worked.

Are you expecting the problem to recur, or do you think that was just a rogue set of codes. I suppose I can take the 5 minutes to remove / "retension" the cable.

I measured the resistance when the car had been resting for an hour or so, so probably still well over 20 C
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Audax

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Re: Graphite Green 9-5 Aero rescue
« Reply #148 on: 24 May 2020, 11:31:31 AM »
I'd make sure that the throttle body is set correctly and cleaned and clear down all the codes and see how it goes. Also check the firmware version of the T7 software, there was an update which would help with false trips for throttle body out of spec although an 03 car might have already had that update, can't really remember clearly.