'89 SD 4.5 Diag. code E59, nowhere to be found.
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HT4100 4.1, 4.5, 4.9 Discussion, '89 SD 4.5 Diag. code E59, nowhere to be found. in Cadillac Engine Technical Discussion; Hi, ive been searching through the posts and links etc.. for diagnostic codes for my 1989 Sedan Deville (4.5L) i ...
  1. #1
    highonchai's Avatar
    highonchai is offline Cadillac Owners Fanatic
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    Question '89 SD 4.5 Diag. code E59, nowhere to be found.

    Hi, ive been searching through the posts and links etc.. for diagnostic codes for my 1989 Sedan Deville (4.5L) i check my codes and run the diag program, and ive gotten a few different codes, E30, E52 etc.. I found these with no problem, these are no big deal, just a couple glitches easily fixed, basically by resetting the codes. But the code i get the most is E59. Nowhere can i find the the Diagnostic example for the E59 code. Does anyone have the code book? ive seen them on eBay so i know theyre out there, i just cant seem to get my hands on one. Please help me out, I wish i knew what was going on. the car doesnt perform differently, only when the service engine light kicks on does it bog a little bit, barely even noticable, and i assume thats a normal thing. Does anyone know what E59 means? or have a link with that code on it for sure, dont send the links without the code, ive been there and done that. Thanks a lot guys, take it easy.

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    ckucia is offline Cadillac Owners Fanatic
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    Re: '89 SD 4.5 Diag. code E59, nowhere to be found.

    Quote Originally Posted by highonchai
    Hi, ive been searching through the posts and links etc.. for diagnostic codes for my 1989 Sedan Deville (4.5L) i check my codes and run the diag program, and ive gotten a few different codes, E30, E52 etc.. I found these with no problem, these are no big deal, just a couple glitches easily fixed, basically by resetting the codes. But the code i get the most is E59. Nowhere can i find the the Diagnostic example for the E59 code. Does anyone have the code book? ive seen them on eBay so i know theyre out there, i just cant seem to get my hands on one. Please help me out, I wish i knew what was going on. the car doesnt perform differently, only when the service engine light kicks on does it bog a little bit, barely even noticable, and i assume thats a normal thing. Does anyone know what E59 means? or have a link with that code on it for sure, dont send the links without the code, ive been there and done that. Thanks a lot guys, take it easy.
    According to this site

    http://autorepair.about.com/library/...bl-dtcs-38.htm
    (For an '88 - I don't know if '89 is the same, but it probably is)

    E059 VCC Temp Sensor Circuit

  4. #3
    highonchai's Avatar
    highonchai is offline Cadillac Owners Fanatic
    Automobile(s): '85 Seville Commemorative Edition, '69 Sed.Dev., '08 G6 GT
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    Re: '89 SD 4.5 Diag. code E59, nowhere to be found.

    Ok thanks a lot, that makes sense because when i hooked it up to a diag. machine it didnt pring up any problems, but the trani temp was in the negative degrees. Thanks for doing the research ckucia!

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