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Discussion Starter · #1 ·
Hi, i have a 2001 9-5 aero. Recently i took the NSS out to clean it as they tend too gunk up. After putting it back in it clearly wasn't outputting signal, as i couldn't see which gear is was in the instrument panel. Eventually the bulbs lighting the gears themselves in the gauges also went dark. I got a transmission light as well as a tcs light. Car is also in limp mode.

Figured i must have messed up the NSS, bought a working one, same issue. Connected tech2 and the problem seems to be "no communication with TCM". Does the TCM have a fuse i could have blow with the broken NSS or could I have blown the TCM itself?

I doubt it's a wiring problem as all was fine before removing the NSS. Lesson learned, if it ain't broke, don't fix it.
 

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Have you double checked all fuses in dash fuse box?
 

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Check fuses with a multi meter or so. Visual check is NOT reliable.

It seems early TCM's seem to break. So you might have a problem there.

What is a NSS??

Send from my Palm Tungsten T5
 

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Discussion Starter · #5 ·
Check fuses with a multi meter or so. Visual check is NOT reliable.

It seems early TCM's seem to break. So you might have a problem there.

What is a NSS??

Send from my Palm Tungsten T5
I will check, but i can't find a fuse related to the TCM, unless it's the one for the automatic transmission. Will check with a multimeter, but it looked fine. NSS - Neutral safety switch, sits on top of the gearbox and reads which gear you are in.
 
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