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Old May 18, 2021 | 05:33 PM
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Default C6 2005 electrical issues

Once again this piece of crap die ...battery has 12.66 volts ... Brand New bcm programmed ...abs light ...service anti lock brakes ...all gauges go down to zero minus the battery one no lock or unlock through the key fob no windows working...low fuel message even with half tank etc ...I'm tired of this crap give me an offer
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Old May 18, 2021 | 06:32 PM
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Have you taken it to the dealer? Miles on car? Age of battery? Original battery cables?
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Old May 18, 2021 | 06:35 PM
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Originally Posted by Topduarte
Have you taken it to the dealer? Miles on car? Age of battery? Original battery cables?
BAttery has 12.66 volts ...I think factory cables original ones ..miles 106110 ...and about taking it to the dealer ? Don't get mad with my answer but I never take any car to the stealership besides 99% of the time they don't fix the issue
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Old May 18, 2021 | 06:52 PM
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I understand but change the cables, over 100k miles and 16 years old.

they will cost you about $125 for both
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Old May 18, 2021 | 07:00 PM
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Originally Posted by Topduarte
I understand but change the cables, over 100k miles and 16 years old.

they will cost you about $125 for both
Thanks I think that's something to replace no matter what
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Old May 19, 2021 | 03:04 PM
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I have an 05 and it is extremely sensitive to electrical problems. I would:

1) Check the battery voltage (your 12.66 is perfect) and crank capacity.
2) Make sure the battery posts are clean and tight even if you just checked them.
3) If its a manual make sure it is left in reverse
4) Check ALL the grounds (This is my guess for your problem.)
5) Check for "draw" between the +cable and the +battery post.
6) Look for loose connectors. You had the ECM replaced and that might be a good place to start. Check the starter connections too.

Good Luck, hope this helps somewhat.

(In my case a pen fell out of my pocket and got under the seat. About a month later I got all sorts of seat belt warnings and active handling messages. Later after retrieving my pen and resetting the connectors - No more problems.)
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Old May 19, 2021 | 03:16 PM
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Originally Posted by Dutch08
I have an 05 and it is extremely sensitive to electrical problems. I would:

1) Check the battery voltage (your 12.66 is perfect) and crank capacity.
2) Make sure the battery posts are clean and tight even if you just checked them.
3) If its a manual make sure it is left in reverse
4) Check ALL the grounds (This is my guess for your problem.)
5) Check for "draw" between the +cable and the +battery post.
6) Look for loose connectors. You had the ECM replaced and that might be a good place to start. Check the starter connections too.

Good Luck, hope this helps somewhat.

(In my case a pen fell out of my pocket and got under the seat. About a month later I got all sorts of seat belt warnings and active handling messages. Later after retrieving my pen and resetting the connectors - No more problems.)
hey bro thanks a lot for responding you got all the solutions for my issue my neighbor helped me a lot checking the grounds he found there is good grounds but battery terminals are old and thin ...also cables that goes from battery to all the connections are dirty and old ...my neighbor says to replace the terminals and cables ...going to change the terminals and see what happens ...thanks one more time brother
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Old May 19, 2021 | 08:10 PM
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Oh gosh, I've had those issues over the years and every time, it is the battery. Even when the battery tests good I just go ahead and replace it and the problem goes away. I get two good years and sometimes three years out of a battery and then I become cautious. Use a battery tender, it really helps.
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Old May 19, 2021 | 08:23 PM
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Originally Posted by Fine05
Oh gosh, I've had those issues over the years and every time, it is the battery. Even when the battery tests good I just go ahead and replace it and the problem goes away. I get two good years and sometimes three years out of a battery and then I become cautious. Use a battery tender, it really helps.
tell me about it bro I just replaced the terminals ...charged the battery and car start like a champion so yeah simple **** that drive you crazy
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Old May 20, 2021 | 10:18 AM
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Originally Posted by Fine05
Oh gosh, I've had those issues over the years and every time, it is the battery. Even when the battery tests good I just go ahead and replace it and the problem goes away. I get two good years and sometimes three years out of a battery and then I become cautious. Use a battery tender, it really helps.
now the only issue I have is the abs light coming randomly to the dash ...it comes and go ..but something that makes me wonder is why when the abs light shows ..all the gauges go down to zero? ...and nothing works..no windows no fob functions no turn signals no ac etc ...the only gauge that stay reading 13.8-14.10 volts is the battery one... Also when abs light shows display says service anti lock brakes
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Old May 20, 2021 | 12:27 PM
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Probably just the battery. Just do yourself a favor and get a new one. They don't cost that much. Make sure connection is tight at the battery terminals. Can be tricky due to conical connections so make sure they're tight but not over torqued.
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Old May 20, 2021 | 12:30 PM
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Originally Posted by oldcanuck
Probably just the battery. Just do yourself a favor and get a new one. They don't cost that much. Make sure connection is tight at the battery terminals. Can be tricky due to conical connections so make sure they're tight but not over torqued.
I agree boss for sure I will get a new battery thanks for the advise .... another question where is located the anti lock brakes? Wheel speed sensor? ..if so what's the service that suppose to be done ? Unplug connectors and clean them ?
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Old May 28, 2021 | 10:26 AM
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Originally Posted by vettelover8306
Once again this piece of crap die ...battery has 12.66 volts ... Brand New bcm programmed ...abs light ...service anti lock brakes ...all gauges go down to zero minus the battery one no lock or unlock through the key fob no windows working...low fuel message even with half tank etc ...I'm tired of this crap give me an offer
upgrade...finally found the source of all my issues ...after removing the plastic cover where the obd 2 is installed my good friend ..(the one that I owe half of my car cause he is the only one that fix it lol ) we realized that several wires were burnt causing a lot of crazy shtsss in my car ..as soon as he split the wires the cluster got illuminated ..and everything works fine ...just letting you know guys in case you replace battery...install new parts etc and you still with the problem this can be also your issue ...a short circuit
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Old May 28, 2021 | 10:35 AM
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Glad you found your nightmare I also have 05, and it seems I need to replace the battery every 32 months, cause it either gets weak or dies.

I can leave the car in the garage, for 5 weeks, and fires right up with no problem.

Glad to hear you can once again enjoy your ride, and Summer weather here to start having fun once again. car shows are returning and masks are disappearing.
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Old May 28, 2021 | 10:39 AM
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Originally Posted by 1bdvet
Glad you found your nightmare I also have 05, and it seems I need to replace the battery every 32 months, cause it either gets weak or dies.

I can leave the car in the garage, for 5 weeks, and fires right up with no problem.

Glad to hear you can once again enjoy your ride, and Summer weather here to start having fun once again. car shows are returning and masks are disappearing.
lmao yes sir ..well yeah what a good feeling to fix the typical electrical gremlins in these cars next project is to fix the HUD
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Old May 28, 2021 | 10:54 AM
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Originally Posted by vettelover8306
lmao yes sir ..well yeah what a good feeling to fix the typical electrical gremlins in these cars next project is to fix the HUD
I can tell you this last Friday night local car show here in Davie my friends 05, head unit failed, and local Dealership charged 1,800.00 for new one, if it was me I would live without .
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Old May 28, 2021 | 11:22 AM
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Originally Posted by 1bdvet
I can tell you this last Friday night local car show here in Davie my friends 05, head unit failed, and local Dealership charged 1,800.00 for new one, if it was me I would live without .
what???? 1800$ lmao my god thats a steal ..mine fell two years ago and has been like that since then ...if I have to pay that I do it by myself but anyway it doesn't bother me at all
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Old May 28, 2021 | 11:25 AM
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Originally Posted by vettelover8306
what???? 1800$ lmao my god thats a steal ..mine fell two years ago and has been like that since then ...if I have to pay that I do it by myself but anyway it doesn't bother me at all
Smart move!
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Old May 28, 2021 | 11:25 AM
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Originally Posted by 1bdvet
Smart move!
another thing ...you mean Davie FL??
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Old May 28, 2021 | 11:30 AM
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Originally Posted by vettelover8306
another thing ...you mean Davie FL??
Every Friday night cruise in Davie off of 84, by the Lowes and old Ruby Tuesday, just look for the Corvettes starts at 6;00PM to 9:00PM.

https://www.facebook.com/groups/843411769172203
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