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Old May 21, 2017 | 07:35 PM
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Default ABS TCM Light
Recently I replaced the brakes and rotors on my 2002. Now the abs and tcm lights came on. I have a c2181 code. Anyone familiar with the disease and the cure and is this something a seriously amateur mechanic should tackle.
Thanks in advance for any and all replies
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Old May 21, 2017 | 08:01 PM
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Go read that code again. C2181 does not compute.
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Old May 21, 2017 | 09:24 PM
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You mean 1281, right?
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Old May 21, 2017 | 09:48 PM
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Originally Posted by 8VETTE7
What's a TCM Light???
Traction Control Module (?) warning message, is what I'm assuming the OP meant.
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Old May 22, 2017 | 09:46 AM
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Default abs/tcm lights
Originally Posted by UM Rebel
Go read that code again. C2181 does not compute.
My bad, I had 24hrs of no vodka and re-checked the codes, it was TCS 1218. Message to service abs and tcs are also showing.

Thanks
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Old May 22, 2017 | 09:47 AM
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Originally Posted by Slo Yelo C5
Traction Control Module (?) warning message, is what I'm assuming the OP meant.
Yes, the correct code is TCS 1218. Thanks
Last edited by hclaeson; May 22, 2017 at 09:47 AM.
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Old May 22, 2017 | 09:51 AM
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Default abs/tcm lights
Originally Posted by UM Rebel
Go read that code again. C2181 does not compute.
Edited post to read the correct code TCS 1218. Sorry
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Old May 22, 2017 | 12:02 PM
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Default abs/tcm lights
Originally Posted by 8VETTE7
I would start by clearing the code and see if it returns. C1218 is a relay issue operating the BPMV and the relay is inside the EBCM. Might also be caused by bad grounds. Worth checking grounds before going further with potentially expensive repairs. Here are a couple links relative to grounds that may help:

http://forums.corvetteforum.com/c5-t...locations.html

http://forums.corvetteforum.com/c5-t...tion-long.html Post #1


and one with some pics

https://www.corvetteforum.com/forums...re-report.html
Thanks, heading to the garage tools in hand. Will let you know
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Old May 22, 2017 | 01:19 PM
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Default abs/tcm lights
Originally Posted by 8VETTE7
I would start by clearing the code and see if it returns. C1218 is a relay issue operating the BPMV and the relay is inside the EBCM. Might also be caused by bad grounds. Worth checking grounds before going further with potentially expensive repairs. Here are a couple links relative to grounds that may help:

http://forums.corvetteforum.com/c5-t...locations.html

http://forums.corvetteforum.com/c5-t...tion-long.html Post #1


and one with some pics

https://www.corvetteforum.com/forums...re-report.html
OK went and checked the contacts, they were clean. I remembered I had just installed a Norris oil catch can prior to the lights coming on. I disconnected the can and reconnected the pcv. The lights and messages were clear. Now I am really confused. Any suggestions?
Last edited by hclaeson; May 22, 2017 at 01:19 PM.
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Old May 22, 2017 | 04:09 PM
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Default abs/tcm lights
Originally Posted by 8VETTE7
Sounds to me like you somehow disturbed some electrical connections/grounds near where the catch can was installed. There is a ground point on the passenger side of the car near to where the catch can would normally be installed. Time to take some careful note of electricals around where you were working..............
I checked that ground point and it is good. Now where the PCV valve goes in to its hose is a electrical connection from the hose. Is that a possible problem? The PCV hose was under some stress from connecting the new hose from the oil can to the valve. I have no idea what that electrical connection is for.
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