Need help with codes
Cadillac
 

Cadillac Forums | Help Us Help You | Advertise | Cadillac Parts | Cadillac News | Cadillac Classifieds / (Old System)

Cadillac Technical Archive | Cadillac Dealers | Cadillac Reviews | Cadillac Dealer Reviews | Cadillac Vendors

CadillacForums.com is the premier Cadillac Forum on the internet. Registered Users do not see the above ads.
+ Reply to Thread
Results 1 to 4 of 4
Northstar Engines and System Technical Discussion Discussion, Need help with codes in Cadillac Engine Technical Discussion; I have 2 codes in History on my 98 Deville with 65,000 miles on it they are IRC B1771 IRC ...
  1. #1
    PhantomCadillac is offline Cadillac Owners Fanatic
    Automobile(s): 2001 DTS
    Join Date
    Feb 2004
    Location
    Florida
    Age
    56
    Posts
    186

    Need help with codes

    I have 2 codes in History on my 98 Deville with 65,000 miles on it they are
    IRC B1771
    IRC U1255
    and then it comes up with
    PCM?

  2. Remove Advertisements
    CadillacForums.com
    Advertisements
     

  3. #2
    Lawrence's Avatar
    Lawrence is offline Cadillac Owners Fanatic
    Join Date
    Oct 2003
    Location
    Ohio
    Posts
    334

    Re: Need help with codes

    Might help until someone can help with the cause. The PCM? is normal. You might try to reset first and see if they come back. Not sure exactly how it is done but can be done in the DIC. You could also try disconnecting then reconnecting the battery. Of course that will give you a code too which will go away after 40 starts. Has any work been done on the car recently?

    Body code B1171 - Internal SDM Failure
    Network Code U1255 - Serial Data Line Malfunction

  4. #3
    PhantomCadillac is offline Cadillac Owners Fanatic
    Automobile(s): 2001 DTS
    Join Date
    Feb 2004
    Location
    Florida
    Age
    56
    Posts
    186
    Thread Starter

    Re: Need help with codes

    Before I bought it in Dec of 2003 it had the waterpump replaced.

  5. #4
    PhantomCadillac is offline Cadillac Owners Fanatic
    Automobile(s): 2001 DTS
    Join Date
    Feb 2004
    Location
    Florida
    Age
    56
    Posts
    186
    Thread Starter

    Re: Need help with codes

    Any Idea what those codes mean? Thanks for your help. I really like the Deville it is the best car I have owned to date. And I have own quite a few cars in my time.

Quick Reply Quick Reply

Register Now

Please enter the name by which you would like to log-in and be known on this site.
If you do not want to register, fill this field only and the name will be used as user name for your post.

Please enter a password for your user account. Note that passwords are case-sensitive.

Please enter a valid email address for yourself.

Log-in

Human Verification

In order to verify that you are a human and not a spam bot, please enter the answer into the following box below based on the instructions contained in the graphic.



Bookmarks

Cadillac Posting Rules

  • You may post new threads
  • You may post replies
  • You may not post attachments
  • You may not edit your posts
Read about Lincoln | Buick | Kia Forte Forum
Need products for your Cadillac? Check out your options at the links below:

custom floor mats | Cadillac Chrome and Black Chrome Wheels | window tinting