SARAH313 Posted December 1, 2010 Report Share Posted December 1, 2010 I have a 1997 Cadillac deville. It has the service engine light on and I checked the DIC Every code I am going to list has "history " behind it. I can not figure out what these codes may mean. please help. The folowing codes are PCM P0171 PCM P0174 PCM P0420 PCM P0603 PCM P0603 PCM P1599 IPC P1552 IPC B1983 IPC C1210 ACM B1315 ACM B1341 ACM B1983 SDM B1136 SDM B1147 SDM B1148 SDM B1161 SDM B1163 TCS C1222 TCS C1233 TCS C1255 PZM B1552 PZM B1558 PZM B1983 PZM B 2471 IRC B1740 IRC B 1771 IRC U 1225 IRC U1064 IRC U1065 RFF B2560 MMM U 1300 MMM B1983 MMM B2149 MMM B2150 PCM? Link to comment Share on other sites More sharing options...
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