Got this message today on the DIC for the first time. I have an 05 MN6 and i didnt do anything different then normal. Pushed the clutch, then pushed the ignition button. car didnt start, but sae the message on the screen.

has anyone else gotten this?
Seems like a message i would expect on an auto trans...

 

You sure it wasn't your parking brake?

 

It is the message you'd get with an auto tranny car. That message should never appear in a manual car. Sounds like the BCM didn't boot up cleanly when you got in the car and thought it was an auto car instead of a manual car.

 

as long as the car STARTS that's good enough!!

 

This makes me continue to wonder if there isn't a little (Casper-sized) ghost or two running around our machines...

Let's put aside DBS, TM, AH wiring defect and other 'big ticket' items for the purpose of this discussion.

Many of us have had odd one-off gremlins, i.e. my A/C changing the set point, or turning itself off completely when accelerating hard. I know that some people (maybe even me) could have inadvertantly knocked the **** when grabbing a gear, but I have had it happen when accelerating hard in the same gear (third), so I know that at least sometimes odd things happen when the car gets bounced or stressed. I also have had the service AH come on (I do not have telescoping wheel) and cause grinding noises from ABS, "engine power reduced" messages that persisted until I pulled over stopped the engine, and 'rebooted'.

I know we have a CAN bus that ties all of the system messages together, and one would hope that both the bandwidth and the data integrity of that system would prevent spurious messages and control changes ('glitches'), but I have seen too many intermittent, unexplained, and unreproducible hiccups in my own car (and read about others here) to not believe there is some sort of systemic design bug that remains in the 'operating system' (if I can mis-use that term in this context), of our cars.

Something tells me it won't be GM but the enthusiast community that eventually ferrets this out as data loggers and tools get more advanced, allowing us to 'decompile' the traffic and catch the glitches.

Don't get me wrong -- love the car, not trying to cause hysteria, but there is something buggy still in there.

 

I thoguht the AC was designed to turn off under hard acceleration to reduce stress and make you go faster

 

Correct - they have been doing that for years - compressor shuts off at W.O.T.

 

It is not just compressor momentarily cutting out due to low manifold vacuum switch.

It is literally changing mode, i.e.turned off completely with blank setting on temp setting display. Not every time, but often enough. And then sometimes, it just spontaneously changes the setting value -- sometimes down to 64, sometimes up to 78... twice it has even switched to dual zone mode, which I never use. I'd say it has done these tricks maybe 20 times in the 18K miles I've driven.

Others have noted similar behavior, but it was chalked up to accidently knocking the ****. I am sure that some instances are indeed just that. But I have caught it doing it with no gear change or hand in area.

BTW, I am sorry if this is now off-topic due to my thoughts -- original poster was interested in tranny message, so further talk on A/C might not be what they were after, but I think they might possibly be related.

 

Design feature

 

My motto is:

"Never turn your back on an electron!"

 

(Or perhaps on some other posters who refuse to carefully read what is being said, and therefore think an obvious issue is a 'design feature' )

 

[QUOTE=TrackNoob
(Or perhaps on some other posters who refuse to carefully read what is being said, and therefore think an obvious issue is a 'design
feature' )[/QUOTE]

Do you have a point there?

Is there some reason that you don't believe that the system is designed to shut off the compressor at WOT, or are you trying to make some other point?

 

You said:
Yes that could be a gremlin

And then you said:

That could be the system acting as designed. Therefore, instead of having two problems, you could have one symptom that could actually be a problem, and another condition that is completely normal.

If you want to trouble shoot a problem, you need to be diligent in seperating normal conditions from abnormal conditions.

 

Yes, the point is that I am able to tell the difference between a MOMENTARY loss of cool air (with fan settings and temp adjustments remaining perfectly as they were previously set) that would be expected from normal system operation, and the total HOSING of adjustments and SHUT DOWN of the A/C system CONTINUING subsequent to a bit of hard driving, with attendant LOSS of the prior HVAC settings.


I must have been less than clear with my original phrasing, but I think I subsequently made it clear enough.

So, I believe I have now extracted all the information that you are capable of giving to me on the A/C question (none), so I'll leave you with only the O/P's question remaining on the auto trans message popping up on thier MN6 car -- maybe they just don't understand how their car works, either?

I can't speak for anyone else, but I'd appreciate it if you could do me a personal favor -- don't help me any further!

Thanks!

 

Thanks for the tip.

 

You need to chill, dude. I don't recall posting a response to your post. Take a look - it was in response to vette-oholic. But to your request, no sweat.