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Old 7th August 2011
ghandi ghandi is offline
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Join Date: Jul 2011                                                
Location: Adelphi, M.D.
My Saabs: 99 9-5 SE 2.3
Posts: 2
Default incorrect gear ratio

Hello, I just bought a 99 saab 9-5 at an auction, I immediately took it to auto zone to get the codes checked and a code for incorrect gear ratio came up, ive done research found out about limp home mode, and that it can be from wear or a faulty ecu, since then i have flushed the trans fluid twice and it was burnt and full of glitter-sized metal fragments. I was planning on flushing it once more and changing the filter then taking it to a dealership to see it they could reset the ecu or check if it needs to be replaced. Is this a waste of time or is the trans no good, I would like to get this fixed asap. any help is welcome.
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Old 7th August 2011
snowball snowball is offline
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Join Date: Oct 2010                                                
Location: vancouver
My Saabs: 9-5 1999
Posts: 89

metal flakes in the transmission fluid is BAD. it was likely abused too much for just a fluid change.
to reset the check engine light, unplug the battery for a while or pull the fuse for the ecu (#20 i believe) - this won't damage anything and you can see if the error comes up again.
search you tube for limp home reset for saab and you find a video tutorial on how to check for and reset limp home mode on the throttle body.

cheers and good luck!
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Old 7th August 2011
FK9-5SE2000 FK9-5SE2000 is offline
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Join Date: May 2011                                                
Location: Virginia, USA
My Saabs: 2000 9-5 SE V6 3.0L
Posts: 91

How many miles on this car? Do you know if the neutral safety switch (NSS - often referred to a a transmission range switch) was ever changed? If it is working incorrectly, it could send improper codes to the TCM and could result in this type code and could drop the car into limp home as well. The metal flakes are not a great sign.
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Old 7th August 2011
Sparky's 9-5 3t's Avatar
Sparky's 9-5 3t Sparky's 9-5 3t is offline
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Join Date: Feb 2010                                                
Location: West Bend, Wi.
My Saabs: "Freja"- '03 9-5 V6 Arc by Rabbit
Posts: 708

Fuse 17 for the ECU and if you find a tranny filter in there, lemme know. lol My '03 auto trans doesn't have a filter. Many newer (newish?) autos don't.
--T7 Suited V6 by Rabbit--Taliaferro K&N assembly--Relay 666--Rear fog light mod--6k HID headlamps--18" SS wheels--245/40/18 Yokohama Advans--Blacked-out front grill--
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Old 8th August 2011
Jssaab Jssaab is offline
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Join Date: Aug 2006                                                
Location: San Diego, CA
My Saabs: 2000 9-5 Parts, 2003 Aero Hirsch "Clone"
Posts: 7,868

What color is that car you got? I know of a car we shipped t the actionsl a few weeks ago needing a trans
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