since tuesday ive been getting every possible message on the DIC. and all the lights in my gauges light up. it all started with my passenger window and door lock not functioning. i checked the codes and this is what i get:
10-PCM:
P1626H

28-TCS
U1301H
U1016H

40-BCM:
B0507H
B2587H
B2592H
U1255H
U1016H
U1096H

58-SDM:
U1301H

60-IPC:
U1255H
U1016H
U1040H
U1064H
U1176H
U1088H

80-RADIO:
NO COMM.

99-HVAC:
U1064H
U1096H
U1160H
U1255H

A0-LDCM:
U1255H
U1064H
U1016H
U1096H

A1-RDCM:
NO COMM.

A6-SCM:
U1300H
U1255H
U1016H
U1064H

B0-RFA:
U1255H
U1096H
U1064H
U1016H
C2110H

when i clear the codes everything is ok. but if go on a bumpy road all the lights on my gauges start lighting up. i get that REDUCED ENGINE POWER and a lot more messages. both my doors wont work. and when i check for codes at that point they all read NO COMM.

ive checked most of my grounds and theyre all clean. and if i shut the passenger door hard enough the locks and windows start working for just a little bit

anybody else had a similar problem?
what was the solution?

sorry for the long post, bad grammar and misspelling

 

Check the computer connections on the one behind the passenger
foot floor board, you may have a loose connection feeding the computer
module.

 

the one next to the fuse box? if so i even removed it to inspect it but it looked good

 

check and clean all of your ground's!

 

one thing i forgot to mention is that when im deleting the codes i hear like a small motor running inside the dash and the brake pedal depressurizes

 

its still IP..but this rain wont let me

 

No there is one inside of thecar on the passenger side. It is under the dash. You will see two tabs that you pull done and
then you can remove the cover.
It is on the slanted part of the floor.
And it is a good idea to check all the ground wires. I think there are four
connecting to the frame. front and back. But I'm not sure about that.

 

I'll refer to Bill Curlee's many posts on the accordian tube in the door jam where there is a known wire that can and will short to the frame causing your issues. Check both door jam tubes.

 

Take your car to AutoZone and have them test the battery and generator. They'll hook up a test rig to your battery in about 10 seconds and they do it for free. With all the U codes your getting (loss of communication between computer modules - usually happens when voltages get too low), either the IPC is toast (exceedingly rare) or your battery is going bad (common as dirt) even if it doesn't sound like it. Most likely you just need a new battery.

 

i took my battery to autozone to get it tested and it turned out good. so far i've checked grounds: G201, G103, G101, G102, G104, G202 and G401. and it still trows codes.. i did noticed that G402 was not there(behind the passenger RW). the stud where it should be had some kind of rubber boot on it. not sure if thats normal for a 2000

 

i will do that next

 

got her all fixed..it turned out it was a wire shorting out in my passenger accordian tube..

thanx to all for your input

 

Bill,s the man for problems glad your all set

 

Link to the fix? I tried searching for accordian tube but no luck.

 

Sticky at the top of the C5 Tech section - IMPORTANT ELECTRICAL INFORMATION (Long!) (electrical issues)

 

http://forums.corvetteforum.com/1563500141-post12.html

http://forums.corvetteforum.com/1567604471-post2.html