Question about 1990 Saab 900 Hatchback

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1998 saab convertible roof closing fault 2.3 900

I lower the roof on my car and the tonneau cover wont latch shut...ever.
I also have a problem with the roof when closing it too. The latches below the rear window wont lock the roof down initially, after a couple of attempts at closing it again, it will lock into place. I am thinking that perhaps there maybe a problem with a cable not being tensioned properly, although i dont know for sure. Happy christmas too.

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  • 76 Answers

There are numerous technical service bulletins issued for the top. The list with the full TSBs is here.

Posted on Dec 17, 2008

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1 Answer

My convertible top will not latch to the tonneau when up and the tonneau latch will not hook when down


Use a spray white grease and clean and lube all the moving parts of the top, all of them, then retry.

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This needs to go to the dealer to have the systems control module scanned for fault codes during an "active" test cycle.

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Good Luck with that one. My neighbor hand built one of those cars from the ground up out of two wrecked ones, he is the real McGuyver. When he was done he put it on a flat bed and hauled it 120 miles to a dealer and paid them 200 bucks to sync that roof movement. If he can't do it, NASA can't do it either.

Put some thought into that scenario, you might be much closer to a dealer.

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Jul 13, 2011 | 1998 Saab 900

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I have a saab 93 1998,the power roof has just started to only open half way then decides to stop,if i gently push the roof it will complete its procedure,are there any sensors that may be playing up .?


Take a look at www.saabservices.com website, and click on convertible top issues.
There is a huge amount of stuff there, including diagnostics info at the bottom of the page.
The tonneau motor is the most common problem, and they sell them. Another possible issue is a bad 5th bow potentiometer. Good luck!

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My 96 900S Convertible won't operate, the main motor in right rear side of the trunk activates, but the bar that connects to the tonneau cover is twisted, as if the tonneau cover motors are cooked? Any...


You could check the top latch position sensor and convertible top control module....if the motors are fried replacing them is very expensive....

Aug 08, 2009 | 1996 Saab 900

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SAAB 900 convertible 1995 - hood problem tonneau motor


I just went through HELL because my top would not go down! I did EVERY possible solution with NO AVAIL! So anyway, Im in the trunk and noticed a baggy sack hanging in the trunk.. So I figured it was for the roof.. Anyway the sack has 2 straps to hold it up for more room when the top is UP. So I said "I Wonder...." I released the straps and the bag hung again, and GUESS WHAT? Yea the roof works!!!!!!!!!!!!!

Jun 11, 2009 | 1998 Saab 900

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I have a 1997 saab 900s convertible the other day when i attempted to put the roof down it wouldnt go down it kept displaying check soft top on the sid. i checked it all still it wouldnt go down so i...


In the trunk there are 2 sensors that are located in the back side of the cover where the bar with the springs are they mus of popped open just put a piece of tape thats what i did and so far so good. One question how do you get the top down buy hand? Cant figure it out.

Jun 06, 2009 | 1997 Saab 900

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May 01, 2009 | 1996 Saab 900

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Saab 93 convertible roof won't open


Your tonneau motor is probably bad, though reprogramming the limits may fix it. You will need the factory tool, unfortunately. There is a lot of information on this webpage. Be sure to read the information relating to updates on 1995 models.

Feb 22, 2009 | 1995 Saab 900

1 Answer

Saab roof starts to open but the lid dose not fully open to let the roof fold down


The 94-98 Saab 900 cars have numerous top issues that are known. The primary issue is the design of the convertible top Tonneau motor that is located in the right rear quarter panel behind the light. The problem with the original motors was that there was not enough strength in the housing that held the motor to support the top movement because the teeth on the gear drive would get chewed up when the motor moved out of position. The failure of the Tonneau motor causes the top to chatter about half way up or down because the teeth of the motor gears would get chipped off. Replacement of the gears or replacement of the motor is the only repair and the convertible top Control module must be programmed after the repair by someone with a Saab Tech 2 computer tool which is used to program the top potentiometer settings. If you catch this problem early enough it can be repaired by using the bracket reinforcement kit.
Check latches is also a common failure which displays on the Saab Information Display (SID) Generally, this failure is due to problems with the micro-switch located in the latches that secure the convertible top when up.
Another issue with the convertible tops has been the control module that controls the top electronically. The major problem with this is device is that it looses the ability to communicate with the Saab tech 2 tools. This problem appears to have been solved in the newest versions of the ECM.
This TSB covers the known issues with NG 900 vert tops. There are numerous others for the 9-3 tops.

Jul 21, 2008 | Saab 900 Cars & Trucks

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