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TCM code 1214 Sol Valve Relay contact open

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Old Feb 19, 2016 | 12:34 PM
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Default TCM code 1214 Sol Valve Relay contact open

On my 2003 I Ran the diagnostics to view the codes. I have gotten intermittent " Service Trac Control and ABS light comes on. I reset it and it stays off for awhile.
With the code I listed above where is the Sol valve Relay Contact or coil that indicates and open situation? Can I resolve this myself relatively easily? Thanks Mike
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Old Feb 19, 2016 | 12:47 PM
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yes, most likely it's just a few bad solder joints... usually just resoldering the relay will fix the issue, it did in my case... https://www.corvetteforum.com/forums...r-fleabay.html
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Old Feb 19, 2016 | 01:22 PM
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You will need to get this far into the EBTCM to resolve the issue:







Here is the circuit board that you will be soldering on:




That is an UN-TOUCHED (as it came out of the case) GM EBTCM circuit board. You can see some of the solder joints that look nasty. (IMHO).


BC

Last edited by Bill Curlee; Feb 19, 2016 at 01:22 PM.
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Old Feb 19, 2016 | 02:35 PM
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Bill

Could the fact I keep my 2003 on a battery tender between drives on the winter months be causing any of the issues. The code and dash warnings do not appear regularly. Thanks
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Old Feb 19, 2016 | 02:39 PM
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Default TCM C1214 code

Originally Posted by 8VETTE7
Most likely the main power relay in the EBCM is suffering a cold solder joint or the relay is going bad. Could also be carboned contact surfaces in the ignition switch that is preventing adequate voltage from getting to the EBCM. But the ignition switch usually also has other symptoms when it is carboned up. Problem is usually repairable and if you are a DIY'er read here:

http://forums.corvetteforum.com/c5-t...r-fleabay.html


Here is how to test and repair the ignition switch also:


diagnosis

http://forums.corvetteforum.com/1568186703-post64.html



removal

http://forums.corvetteforum.com/1571067145-post107.html


repair procedure

http://forums.corvetteforum.com/c5-t...ch-repair.html
Thanks for the feed back. By the way I did see two History codes AO LDCM 2283 2284 and A1 RDCM U1064. They cleared with reset but I see they had to do with Battery Issue.
MG
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Old Feb 19, 2016 | 03:38 PM
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I don't see how a battery tender could cause the issue. A LOW to VERY LOW battery is worse than anything for the electronics.

That said,, I try to stay away from 100% battery tender on a stored car. All you really need to do is fully charge the battery, disconnect it. You can store the battery inside the basement out of the cold. Every so often, check the battery charge and slow charge as necessary. The OWNERS MANUAL even states this for long term storage.

If you keep the battery in the car (NO TENDER/CHARGER) the longest that it will last is about 2 months before its way under voltage. I've gone as long as 37 days and when I returned from an extended business trip, she started right up. Sure the battery was low BUT, not low enough to be an issue.

YES.... Low battery or a WEAK battery will set off all sorts of random and low voltage errors and warnings. With a very weak battery it will crank and run the engine BUT,, during the HIGH AMP initial hit starter usage, voltage can and will drop as low as 8-9 VDC. As the engine turns over and catches, battery output voltage will raise and come above the 9 VDC minimum and everything is normal. (SORT OF)
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Old Feb 19, 2016 | 04:16 PM
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Default Codes A0 LDCM 2283 2284 and A1 RDCM U1064 in history

Originally Posted by Bill Curlee
I don't see how a battery tender could cause the issue. A LOW to VERY LOW battery is worse than anything for the electronics.

That said,, I try to stay away from 100% battery tender on a stored car. All you really need to do is fully charge the battery, disconnect it. You can store the battery inside the basement out of the cold. Every so often, check the battery charge and slow charge as necessary. The OWNERS MANUAL even states this for long term storage.

If you keep the battery in the car (NO TENDER/CHARGER) the longest that it will last is about 2 months before its way under voltage. I've gone as long as 37 days and when I returned from an extended business trip, she started right up. Sure the battery was low BUT, not low enough to be an issue.

YES.... Low battery or a WEAK battery will set off all sorts of random and low voltage errors and warnings. With a very weak battery it will crank and run the engine BUT,, during the HIGH AMP initial hit starter usage, voltage can and will drop as low as 8-9 VDC. As the engine turns over and catches, battery output voltage will raise and come above the 9 VDC minimum and everything is normal. (SORT OF)
Bill,
By the way I did see two History codes AO LDCM 2283 2284 and A1 RDCM U1064. They cleared with reset but I see they had to do with a low Battery Issue. But it was in the past. New Battery now and fully charged. I do drive it maybe every few weeks when the weather permits. Any thoughts about these two codes

Mike
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Old Feb 19, 2016 | 04:49 PM
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Originally Posted by MJG3145
Bill,
By the way I did see two History codes AO LDCM 2283 2284 and A1 RDCM U1064. They cleared with reset but I see they had to do with a low Battery Issue. But it was in the past. New Battery now and fully charged. I do drive it maybe every few weeks when the weather permits. Any thoughts about these two codes

Mike
YES.... Just CLEAR and monitor.... You should be fine.. They are easily set..
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