Need trouble codes for '83 HT-4100 Eldo
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HT4100 4.1, 4.5, 4.9 Discussion, Need trouble codes for '83 HT-4100 Eldo in Cadillac Engine Technical Discussion; Hello, Thanks for the help in resetting the codes after an alternator change. Would love to know however, what codes ...
  1. #1
    baldizzone is offline Cadillac Owners Member
    Join Date
    Oct 2003
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    Need trouble codes for '83 HT-4100 Eldo

    Hello,

    Thanks for the help in resetting the codes after an alternator change. Would love to know however, what codes 13, 44 and 52 mean. 1983 Eldorado with HT-4100. Thanks.

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  3. #2
    tacoma's Avatar
    tacoma is offline Cadillac Owners Fanatic
    Automobile(s): 1983 ElDorado
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    Re: Need trouble codes for '83 HT-4100 Eldo

    13 = o2 sensor not ready
    44= lean exaust signal
    52=ecm reset indicator




    :coolgleam :coolgleam :coolgleam

  4. #3
    bigred is offline Cadillac Owners Fanatic
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    Re: Need trouble codes for '83 HT-4100 Eldo

    Make sure your O2 sensor is connected properly. If it is, you probably need a new one. This should correct codes 13 & 44. If you still get a code 13 with the new sensor, there is likely a wiring problem in the O2 sensor circuit.


    The 52 just means the battery was disconnected since the last code reset.

  5. #4
    peteski is offline Cadillac Owners Enthusiast
    Automobile(s): 85 Eldo Biarritz
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    Exclamation Re: Need trouble codes for '83 HT-4100 Eldo

    I'm not sure why this is not mentioned here in Cadillacforums (or made into a sticky thread)...

    There are several places on the web to get codes.

    One is:
    http://www.ht4100.com/Diags/default.htm
    Look under the "codes" link.

    And get the Original Factory Service Manual if you are serious about working on your car - it is a must !

    Peteski

  6. #5
    radodave is offline Cadillac Owners Member
    Automobile(s): 1983, 1998 Eldos, 1999 ETC
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    Re: Need trouble codes for '83 HT-4100 Eldo

    Thanks for the codes link, but the ht4100 website is now for sale and not listing codes. Any other sources? Need code 16.

    EldoDave

    ----------

    Thanks, bigred -- What's code 16 on the '83 4100?

    EldoDave

  7. #6
    carnut is online now Cadillac Owners Master
    Automobile(s): 1988 Allante' (sold), 1984 Eldorado, 84 Sedan DeVille
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    Re: Need trouble codes for '83 HT-4100 Eldo

    What nobody mentions is there can be "history" or "current" codes. As you scroll thru on board diagnostics you need to mention if the codes display twice or 3 times. ( 3 code displays mean they're current) History codes usually need to be erased and current codes investigated. If you have no service soon or service now lights on and you have codes that you can read, they're history! Code 52 is set every time the car is smogged. To verify base timing the distributor must be unplugged from the computer. That sets code 52. Once smogged, you erase the false code. If the car is not getting to proper temperature, it will set a false code 13. Many Oxy sensors have been replaced because the engine was running below 190 degrees.

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