Cadillac Seville / Cadillac Eldorado Forum Discussion, codes in Past Cadillac Vehicle Discussion; Can someone please tell me what these codes mean or where I can find their meaning. DDM U1713, IRC U1064 ...
- 11-05-09 05:31 PM #1Cadillac Owners Member
- Automobile(s): 2001 cadillac seville
- Join Date
- Nov 2009
Can someone please tell me what these codes mean or where I can find their meaning. DDM U1713, IRC U1064 & U1016, MSM B2355 & U1000, PCM P1617 & P1189, and TTM U1016. Thanks!!
- 11-05-09 05:46 PM #2
Go to the thread at the top of the main Seville page "How to pull codes". Read the whole thread, then go to the link with "obd2" (OnBoard diagnostics protocol -II) in the url. Click on the lines in the main index box to decipher the P,B,C, and U codes. Bookmark the link - you'll need it.
Do NOT clear codes now, just note whether they are Current or History - it makes a difference. If you clear the P (PCM) codes the car will not pass emissions testing for a couple of weeks until the system settles out.
U codes are usually data transmission and voltage comparisons and come and go like the clouds. Other codes will show as Current if a fault exists, will go to History if the fault does not occur for 3 successful start-run cycles, and will disappear entirely after 30, 40, or 100 such cycles, depending on module.
You need to Google a list of GM part and module acronyms or get the acronyms from the introductory pages in a GM/Helm Factory Service Manual.
- 11-05-09 05:53 PM #3
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