QuestionHey there,
thanks for the info about the c0 info funny to say but thats what it says i think the co is anything thats in the history oh yeah, Now I have cleared the ECM and IPC and now no codes show
only error I get now is:"cautiously" then it displays "Alternator Code CRUI" <what does this mean? this error is I think the problem. the car worked before. this alternator error came up, car stopped workiing and I find no power goiing to the relay under the drivers side if I jump the relay it starts for a second then shuts off. "Alternator Code CRUI" is my problem, please help me if you can I appreciate your time and also your knowledge is greatfully appreciated. 91 eldorado 4.9L THanks
Sincerely, Justin
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Followup To
Question -
Hello,
I have a 91 Caddy El Dorado and I have been spendiing a couple days figurin out this problem, I drove the car and It ran fine until next time I tried starting it I also noticed it is displaying a new problem It says : "Causiously" Alternator CRUI" ( think this is the prob. it wont start)
then I ran through the diagnostic and fond out I think only half of the errors the errors, here they are:
E052 - PCM memory reset
B552 - BCM Menu reset
C026 ?
C033 - Inf. loss
C034 - Loss Control Unit
C061 - Inflat. restraint
ECM? ?
then if I shut off the ignition the computer displays "All cooling check"
I appreciate any help in gettin my car started again I thought it might be a relay or fuse but I checked under the hood and even in the glove box and under the passengers seat, I didnt find no problems but the relay under the drivers side that goes to the ignition does not want to turn on I have even replaced it so I know its something else , I looked at this other box I heard near the kick pannel that also has some other kinda relay in it.
Please help me if you can... its a strange problem even with this new Alternator error. I hope I can get this thing runnin. Thanks for your time, Its really nice that theres a site like this to help out cant thankyou enough for your thoughts.
Sincerely, Justin
Answer -
When you do the diagnostic sequence are you sure that when the full display illuminates that there is a digit missing as the C0 could be an E0 ocode ?.
Because there are no C0 codes.
AnswerI went thru both the 91 and 92 service menuals and all my OFF THE WALL THINGS THAT JUST DON'T HAPPEN books and I have nothing in them relating to this type of code.
Since the BCM controls the diagnostic display and the generator field I would have to go with a faulty BCM.
