I have been reading through so many of these posts, and I am really confused... 2000 Convertible, AT, Active Handling and Electronic Adj Ride control... bought car w/ 94k on ticker and while driving home from the "dealer" the car suddenly veers to the right for a split second and the TC light comes on and the screen reads "Service Active Handling System"... I pull the codes: 28 TCS C1282H YAW RATE SENSOR BIAS CIRCUIT MALFUNCTION
C1284H LATERAL ACCELEROMETER SENSOR SELF TEST MALFUNCTION
C1285H ACCELERATOR PEDAL POSITION SENSOR 3 CIRCUIT

A1 RDCM U1064H

RFA U1096H LOSS OF COMMUNICATION WITH IPC
U1064H LOSS OF COMMUNICATION WITH BCM
U1016H LOSS OF COMMUNICATION WITH PCM
C2100H LF TPM SENSOR MALFUNCTION
C2105H RF TPM SENSOR MALFUNCTION
C2110H RR TPM SENSOR MALFUNCTION
and promptly take it to my local mechanic (an awesome guy who has done all of my non-warranty work for 15 years, and has a sterling reputation and is a third generation local wrench) he clears the codes and has me drive it to see if it happens again and if so, what the codes are... well 1/2 mile down the road (just cruising at 50 mph) it happens again with the same codes... he determines that the problem is and we should replace the yaw rate sensor and the accelerometer, so we do... back out on the road and the same thing happens again... I push the TC button and the car runs fine... shut the engine off (at work) and on the way home while leaving from a stop light (and making a LH turn) the car is shaking and grinding and making grinding noises from the rear diff area, like the diff isn't engaged... hit the TC button and all is fine as long as TC is disabled. Also, the turn signals frequently choose not to work, unless of course I hit the emergency flasher button a couple of times and then they work fine for awhile... I don't know if that is relevant to the other issue or if the flasher switch is just bad, but thought I would mention it just the same. What are your thoughts before I make a trip back to the mechanics???

 

I'm sure you will be told this numerous times....Make sure your battery is completely charged, check your ground under the battery. Being it happens while the car is moving it might be a simple grounding problem.

Good Luck.

 

Battery is fully charged, will check ground, again don't know if there is any relation, but my key fob (lock switch) loses it's sync daily, even with fresh batteries installed???

 

With the C5, "fully charged" is not always a good answer.

Is the battery rated at 700 CCA and 120 RC or greater? If so, that's good. If not, it could be causing problems even though the car apparently starts normally.

Does the battery test at a minimum of 12.5 volts and over 500 CCA? If so, then it probably is "fully charged" and might not be the source of or a contributor to your problems.


Frankly, your problems would seem to indicate the need for a certified Corvette mechanic ... A true Corvette expert. An expert local wrench may be a really great guy, but the electrical systems on this car sometimes need a Corvette pro.