07-25-2017, 02:31 PM | #1 |
Drives: 2012 Camaro ZL1 Join Date: Jun 2015
Location: Kentucky
Posts: 5
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P0690
Replaced battery on 2012 ZL1 now it has a p0690 ecm/pcm voltage high I checked ecm fuses ,relays, battery connection ecm connection I erased code but it returns after second start has anyone had this issue
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07-25-2017, 03:31 PM | #2 |
vroom vroom party starter
Drives: 2010 6.2 Join Date: Aug 2015
Location: chattanooga tn/trenton ga
Posts: 22
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dumb question, but did you put the right battery back in it
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07-25-2017, 04:04 PM | #3 |
Drives: 2012 Camaro ZL1 Join Date: Jun 2015
Location: Kentucky
Posts: 5
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Yes it's a Autozone replacement tried a advance auto parts battery today still same issue used friends snap on scanner everything checked out good wondering if its the ecu
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07-26-2017, 02:45 PM | #4 |
vroom vroom party starter
Drives: 2010 6.2 Join Date: Aug 2015
Location: chattanooga tn/trenton ga
Posts: 22
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02-26-2023, 08:54 PM | #5 |
Drives: 2014 Chevrolet Camaro SS Join Date: May 2015
Location: Melbourne, Florida
Posts: 206
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Did you ever find a fix? I’m having the same issue with my 2013 ZL1.
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02-26-2023, 09:38 PM | #6 | |
Drives: 15 Camaro 2SS M6 Join Date: Jan 2020
Location: BC
Posts: 732
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Quote:
off your batt should be 12-13, running it can be anywhere from 12.5 to 14.5. |
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02-26-2023, 10:11 PM | #7 | |
Drives: 2014 Chevrolet Camaro SS Join Date: May 2015
Location: Melbourne, Florida
Posts: 206
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02-27-2023, 03:44 PM | #8 |
Drives: 2011 2SS, 2006 GMC Sierra Join Date: Jul 2019
Location: MA
Posts: 293
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K26 is the PWR/TRN relay, Remove this relay and find a relay with the same part number in the underhood fuse box. I think K55 Rear Defrost is the same relay, You obviously want to pull a relay that's not detrimental to the running of the engine. Switch them, clear the code and run the car and see if it solve the issue. If it does replace the PWR/TRN relay.
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02-27-2023, 04:43 PM | #9 | |
Drives: 2014 Chevrolet Camaro SS Join Date: May 2015
Location: Melbourne, Florida
Posts: 206
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