I searched the forums and didn't find any info.
my 5 speed GSR just threw this code while I was on the highway. I got a tone from the dash, the cruise kicked off and the speedo dropped about 40 mph. It happened a couple of times and when I stopped and pulled codes with my acessport I got acd c2100.
The front tires are worn more than the back. 15000 miles on the car.
Any help will be appreciated.

 

Ive done some more searching 'round the web and I can't find anything relating to this. Has anyone seen it or has a reference?
Moose

 

thats so funny, I threw that same code yesterday at the track. i took a turn wide and my front two went off track before I was able to correct and threw this code. i cleared it and it never came back (also never went off track again)

but sorry, I have no clue what it is

 

huh, I wonder if it has to do with my tires being more worn in the front. It was in the second hour of a 2 hour trip, so maybe a slight mismatch would show up. I really need to get new tires.

 

bump for info

 

battery votage malfunction ..

did something to the wiring ?? connector lose ??

 

it's an adc trouble code that cuts power when it's thrown to prevent damage. I think it has to do with overheating, but I can't find any information on it.

 

it is battery voltage malfunction .. You get this code when etacs voltage to the acd/ayc ecu drops below 9v

 

Oh thanks. I need to check my battery connections. Installed an audio amp a while back

 

Checked all my wiring and it's good. I haven't been able to climb under the car and check things. Why would chkmgnt59 have the same code when he dropped 2 wheels off the track?

On a side note, I updated my acessport and map to the new one that doesn't throw the p1235. nice.

 

i'm not positive the code came when my front two went off track. I just know it came during that session. I was slightly busy at the moment I was off track so I didnt notice if the code came up right then..... :-)

 

at least it is another person seeing the code. I was in the middle of a trip on smooth highway, no bumps. going 78 mph on cruise control. Wiring problems usually present on a rough road or transition in my experience. Unless it is wind whipping a cable under the car or in the engine compartment. It hasn't happened again. I'll be making the reverse trip friday, so I'll watch for it.
moose

 

This just happen to me an hour ago and I found the problem I lossend my battery b cuz my wife car was acting up. So instead of a bust I just changed the battery. When I put it back I forgot to tighten the screws. I guess while I was driving it came off the polarity connectors so I thigted and problem fix.