Diagnostic codes interpretation

[Olutokun]

I will really appreciate it if anyone can help interprete these codes I pulled off my Cadillac Seville 2002:

DDM U1301 HISTORY

DDM U1715 HISTORY

IRC U1064 HISTORY

IRC U1016 HISTORY

MSM B1740 HISTORY

MSM B1750 HISTORY

MSM B1820 HISTORY

MSM B1875 HISTORY

MSM U1000 HISTORY

PCM P0102 HISTORY

PCM P0107 HISTORY

PCM P0122 HISTORY

PCM P0128 CURRENT

PCM P0135 HISTORY

PCM P0385 HISTORY

PCM P0386 CURRENT

PCM P0403 CURRENT

PCM P0405 HISTORY

PCM P0440 CURRENT

PCM P0452 HISTORY

PCM P0463 HISTORY

PCM P0741 CURRENT

PCM P1106 HISTORY

PCM P1107 HISTORY

PCM P1115 HISTORY

PCM P1122 HISTORY

PCM P1258 HISTORY

PCM P1574 HISTORY

PCM P1617 HISTORY

PCM P1842 HISTORY

PCM P1845 HISTORY

PCM P1860 CURRENT

TTM U1300 HISTORY

TTM U1255 HISTORY

TTM U1016 HISTORY

Thanks in advance.

Olu

[Bruce Nunnally]

Should be similar to the 2003 DTC code list found here: http://www.caddyinfo.com/dtc_2003.htm

examples:

DTC U1300, U1301, or U1305

Class 2 Data Link Shorted

DTC U1713 or U1715

Loss of Front Door Module to Window Motor High Speed Comm.

...

DTC P0102

Mass Air Flow (MAF) Sensor Circuit Low Frequency

[Olutokun]

Thank you so much for the prompt response Bruce. But with the host of codes on my PCM, would it be advisable to get a new PCM altogether? Also, which of the error codes should I focus more on?

Thanks

[Logan]

Good chance the 1860 is causing a false 741 from your chart. That said...being there are so many....I would clear all the codes and see which ones come back.

[Olutokun]

Thanks you Logan Diagnostic. I'll surely clear all and see which ones come back. I'll be back here with an update.

[Cadillac Jim]

Don't shoot the messenger; the PCM doesn't cause the codes, it just reports them to the dashboard integration module (DIM) which displays them.