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Old May 8, 2011 | 07:47 PM
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Default Check engine and codes

My 01 Z06 has been acting up sometimes.Seems like it is running 3/4 power sometimes. Got a check engine light after it done it today. Checked codes and this is what it said.

10pcm 1 code
28TCS 1 code
58sdm 1 code
AO LDCM 5 codes
A1-RDCM 5 codes

WTF!! Why so many codes and what are the codes?? What would cause all these at once??
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Old May 8, 2011 | 07:53 PM
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You need to post the actual codes along with the "H" or "C" with each code.
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Old May 8, 2011 | 09:40 PM
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Originally Posted by dgrant3830
You need to post the actual codes along with the "H" or "C" with each code.
I done good getting what I got.lol How do I get the actual codes? Do I need a scanner or something??
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Old May 8, 2011 | 09:49 PM
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No, go into the DIC again. When its complete, you can use the buttons on the DIC to manually go through them. Each section can have multiple codes. You need to write down each code and post them here. Once you are sure you have all of them, you can clear each one individually with the reset button.
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Old May 8, 2011 | 10:13 PM
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Originally Posted by dgrant3830
No, go into the DIC again. When its complete, you can use the buttons on the DIC to manually go through them. Each section can have multiple codes. You need to write down each code and post them here. Once you are sure you have all of them, you can clear each one individually with the reset button.
OK When I was in DIC I went to manual and went through the 10-pcm, 28-tcs,58 sdm etc. It said how many codes in each one but how do I get the actual codes to appear? It just says 10-pcm 1 code on and on but does not tell me the actual code. Do I push another button to open them up??
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Old May 8, 2011 | 10:30 PM
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Originally Posted by 8VETTE7
Read this link for all the details on pulling and clearing codes:

http://www.c5forum.com/ayc/dtcdic.php
Guess I missed something. I looked at that to get what I got. It did come on at the first with numbers but I did not write them down. Will do it again monday and try to get them. Thanks for your help!!
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Old May 9, 2011 | 03:16 PM
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Originally Posted by 8VETTE7
Reread it carefully.. Perhaps print it out and have it with you as you attempt to pull the codes. It explains how to move forward and backward through the codes from an individual sensor as well as how to go forward and back between sensors.
OK,Well I have several codes. Here goes:

10-PCM-code P0327H A1-RDCM-Code-B2283H
28-TCS-code C1278H B2285H
58-SDM-code U1040H B2263H
AO-LDCM-codes B2282H B2265H
B2284H U1064H
B2262H
B2264H Wow any idea what caused so many???
U1064H Where do I start???
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Old May 9, 2011 | 03:27 PM
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Start by clearing them all and see what returns, most of these are H(istorical), the ones that end in "C" are the ones to focus on, since you show none of these-just clear them and see what comes back (if any).
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Old May 9, 2011 | 04:21 PM
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And here's the link to the codes themselves

http://www.stengel.net/diccodes.htm

10-PCM-code P0327H
28-TCS-code C1278H

Those two are suspect but suggest after clearing them all and seeing what comes back as already suggested, know that you can run these codes while you are driving too. If you get the reduced power message while driving, do not shut off the ignition. Just stop and pull the codes at that time and record them.

Last edited by dgrant3830; May 9, 2011 at 04:26 PM.
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Old May 9, 2011 | 09:42 PM
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Originally Posted by dgrant3830
And here's the link to the codes themselves

http://www.stengel.net/diccodes.htm

10-PCM-code P0327H
28-TCS-code C1278H

Those two are suspect but suggest after clearing them all and seeing what comes back as already suggested, know that you can run these codes while you are driving too. If you get the reduced power message while driving, do not shut off the ignition. Just stop and pull the codes at that time and record them.
I cleared the codes. I never got a reduced power message but believe me it was reduced. WIll drive Tuesday and check again. Thanks guys

Last edited by Speedway1; May 9, 2011 at 09:44 PM.
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Old May 9, 2011 | 09:46 PM
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Originally Posted by 8VETTE7
I agree that you should clear all the codes and then drive the car. See what comes back after you drive the car a bit and post those back here.
Something that I noticed. With traction control on should the car be able to spin the tires in first? I have noticed it seems like there may not be traction control since it will burn the tires in first.
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Old May 10, 2011 | 04:28 PM
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Originally Posted by 8VETTE7
The TCS code of C1278 means that TCS is temporarily inhibited by the PCM. If this is infact happening then yes you can burn the tires in first.

I would clear everything and drive the car. What comes back for codes will need to be looked at to try and determine what is going on.

Post all codes that come back even if they are H or history codes.
Cleared codes and drove car. NOTHING! Drove fine and no CHECK ENGINE. MAybe I need to drive it more. Will spin the tires though with traction control on.
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