TONS Of Codes - Need Help
02-16-2014, 08:26 PM
#1
TONS Of Codes - Need Help
So about a week ago I go through the DTC and find a bunch of codes. I clear them all seeing as I have never checked codes through the DTC. Today after doing a little work on the car, I go through the DTC again and walah. I have approximately 1,000,000 codes. In reading around on here and some other forums, I see most people appreciate it when the entire list of codes is given, as if they are all interconnected puzzle-pieces. So in true Corvette fashion, here is the list and I give you amigos many thanks in advance.
P.S. Im sorry. I'll owe you guys a cold one after this.
PCM:
P1626H
TCM:
U1301H
C1221H
C1293H
BCM:
U1255H
U1096H
U1061H
SDM:
U1301H
IPC:
U1255H
U1016H
U1064H
U1040H
U1088H
U1176H
U1160H
Radio:
U1016H
U1064H
U1096H
HVAC:
U1064H
U1096H
U1160HC
U1255H
A0-LDCM - No Comm.
A1-RDCM:
U1255H
U1064H
U1016H
U1096H
A6-SCM:
U1300H
U1255H
U1016H
U1064H
B0-RFA:
U1255H
U1064H
U1096H
Later on I jiggled the rubber wire loom going to the driver's side door and it got connection:
A0-LDCM:
U1064H
P.S. Im sorry. I'll owe you guys a cold one after this.
PCM:
P1626H
TCM:
U1301H
C1221H
C1293H
BCM:
U1255H
U1096H
U1061H
SDM:
U1301H
IPC:
U1255H
U1016H
U1064H
U1040H
U1088H
U1176H
U1160H
Radio:
U1016H
U1064H
U1096H
HVAC:
U1064H
U1096H
U1160HC
U1255H
A0-LDCM - No Comm.
A1-RDCM:
U1255H
U1064H
U1016H
U1096H
A6-SCM:
U1300H
U1255H
U1016H
U1064H
B0-RFA:
U1255H
U1064H
U1096H
Later on I jiggled the rubber wire loom going to the driver's side door and it got connection:
A0-LDCM:
U1064H
02-19-2014, 08:13 PM
#2
In a few year stint @ Cadillac, don't think I ever saw one without a single "Uxxxx" code.
Write them down & clear them. Observe repeat ones as necessary and towards a system that malfunctions, and diag. "U" are communication codes, and appear in a millisecond glitch, and many times harm nothing.
The "P" & "C" I would properly diag & repair. One of the "P" I believe may be the check valve bug (or is it a P14xx??? long day). Search forum for the DIY repairs if so.
GL
Write them down & clear them. Observe repeat ones as necessary and towards a system that malfunctions, and diag. "U" are communication codes, and appear in a millisecond glitch, and many times harm nothing.
The "P" & "C" I would properly diag & repair. One of the "P" I believe may be the check valve bug (or is it a P14xx??? long day). Search forum for the DIY repairs if so.
GL
Last edited by cvm; 02-19-2014 at 08:15 PM.
03-17-2014, 02:01 AM
#3
Le Mans Master
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St. Jude Donor '13-'14-'15
Yes "P' codes are power train codes and are the ones you need to worry about-- all your "U" codes are repeat codes from a communication problem with your PCM and the car's BCM computers- Typically the U codes are from a dead battery or voltage that drops below 12V----I would simply clear them all with a scanner and see if they re-appear--If not--no worries---If they do you may have a ignition switch issue or a steering "lock" issue which is common on older cars---you can search the forums for the steering lock codes diagnoses on the forum