2001 Coupe auto
Ok I have cleaned all of the forward grounds (Engine compartment) and none of them appeared to need it. Also took out battery tray and no corrosion or acid.
I am still getting all kind of crazy things happening.
After taking it for a two mile ride after cleaning them I had the following codes. However, they all have an H by them. I cleared them I thought last night. (I did)
Why do they not go away? I even took the battery out cleaning tonight.

Anyway, I now have the following codes back (With an H)
PCM P1626
TCS U1301
BCM U1255
U1096
U1016
SDM U1301
IPC U1255
U1040
U1016
U1088
U1064
U1176
U1160
AO-LDMC B2282 B2284
U1255 U1064
U1016 U1096
A6-SCM U1300 U1255
U1160 U1016
U1064
BO-RFA U1000 U1255
U1064 U1096
RDCM No Comm
Radio No Comm (No factory radio in it) (it has aftermarket head)
I have a new Red Top Optima. I put it in about a week ago. I was getting messages before that and now after.
I even get the reduced power, abs, active handling, tire monitor and then all of the gauges stop working with the exception of the tach and speedo.

I am about to go nuts here!!!

Any help would be GREAT!!!!!

 

I'd clear them again then run the code check routine right away to verify they really are cleared.

 

I would PM Bill Curlee and ask for his assistance

 

check the ground on drivers side of the engine block its low torwards the rear, its a likley culpret!

 

The h codes should be okay. the door module codes will always be there. other than that, make sure the battery has the right charge. Even if it's brand new it could be defective. Disconnect the battery, to reset the settings, after a few minutes reconnect them, start her up, drive around and check the codes when the DIC says "service vehicle soon" or after your drive. Something is loose or shorting out. Check the wires in the accordion hose between the door and the car for a short. Good luck!

 

If you have the aftermarket radio, check the connectors. I've been having the same problem with my 99. I found that the previous owner had an aftermarket radio in it and put the factory radio back in. The harness was butchered. I'm still finding shorts. As Bill C has said to me. Our cars are continuos projects. Don't get discouraged.

 

ITS YOUR IGNITION SWITCH!! I had the Same thing happen to me with my 2001 Z06. My car acted the same as your is. I had many of the same Codes. Bill Curlee thread to fix it is here..


http://forums.corvetteforum.com/c5-t...tion+c5+switch


If you need anything else I'll be happy to help anyway I can.. I did do the Repair and all had been good for 8 months..

 

oh yea! you had the same problem. OP listen to slvrz06, we had a hell of a time trouble shooting, even the tech at the GM stealor ship didn't have a clue.

 

G105 in the service manual! and BC's diagrams!

 

What's Up Homewrecker!! How the weather today.. Snowed 6 inchs here last night, a whopping 15 degrees..

 

I'm good brother! You stay warm. I'm actually sunburnt from surfing this past sunday Come up to visit buddy! Sorry OP, I just had to say hi to my friend. Again, listen to slvrzo6and you'll be just fine

 

When I had "NO COMM" codes it was due to bare wires running from the body to the doors.

If you pull out the accordian tube between the body and door you will find a wire harness. Pay particular attention to the bare wire with the clear tube over it. This is where my "NO COMM" issue was caused.

 

Can we say IGNITION SWITCH!!

 

Will check today!!
Hope thats where the little grimlin is at. I'm gonna kill it if I can find it. Little sucker is costing me way to much time and trouble.