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C6 ´12 wont start

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Old Jul 10, 2019 | 11:16 AM
  #1  
marpet's Avatar
marpet
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3rd Gear
 
Joined: Mar 2019
Posts: 3
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From: Sweden
Default C6 ´12 wont start

Hey,

I need some help to figure out where i have to look next. A week or 2 ago i got the message "Service Electrical System" in the DIC. This was after i went to my tuner to get all rear O2 codes disabled. I don´t think that because of that.
Yesterday i went and unplugged the battery to check i everything is alright withe all the connection. I forgot the jackpads in the trunk so i opened it with the key.
I check all sparkwires, refitted the fuses and relays in the engine bay, looked up the O2 cables under the car. Everything is fine.
I noticed that the IGN cable was slightly loose on my Powermaster XS starter. Refitted that. Reconnected the battery and the alarm went off. Disabled it with the FOB.
Wanted to start the car. Nothing. Just clicking like if the starter gone bad.

Things I have tried so far:
- New battery
- Charged the old and the new battery
- Changed the relay for crank and starter with the defog relay
- Routed a seperate cable from the IGN on the starter to the BAT connection to see if its turning. It´s turning so i would say its not the starter.
- Replaced the battery in the FOB
- Had the fob in the glove box
- Tried to lock the car with remote, unlock it, sit in the car and close the door and start it. I tried that between everything and i started but not afterwards.

Do you have any tips what i can check?
Is it the BCM?
The Start button?

Regards from Sweden
/Marcel
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Old Jul 17, 2019 | 04:53 PM
  #2  
Shannon Arceneaux's Avatar
Shannon Arceneaux
sarceneaux
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Joined: May 2016
Posts: 18
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From: shreveport, la
Default did you find your answer

Originally Posted by marpet
Hey,

I need some help to figure out where i have to look next. A week or 2 ago i got the message "Service Electrical System" in the DIC. This was after i went to my tuner to get all rear O2 codes disabled. I don´t think that because of that.
Yesterday i went and unplugged the battery to check i everything is alright withe all the connection. I forgot the jackpads in the trunk so i opened it with the key.
I check all sparkwires, refitted the fuses and relays in the engine bay, looked up the O2 cables under the car. Everything is fine.
I noticed that the IGN cable was slightly loose on my Powermaster XS starter. Refitted that. Reconnected the battery and the alarm went off. Disabled it with the FOB.
Wanted to start the car. Nothing. Just clicking like if the starter gone bad.

Things I have tried so far:
- New battery
- Charged the old and the new battery
- Changed the relay for crank and starter with the defog relay
- Routed a seperate cable from the IGN on the starter to the BAT connection to see if its turning. It´s turning so i would say its not the starter.
- Replaced the battery in the FOB
- Had the fob in the glove box
- Tried to lock the car with remote, unlock it, sit in the car and close the door and start it. I tried that between everything and i started but not afterwards.

Do you have any tips what i can check?
Is it the BCM?
The Start button?

Regards from Sweden
/Marcel
did you figure this out we are having the same kind of issues except ours starts sometimes and then when it doesn't it acts like it has no power
weve changed:
bcm
batterie
and fob
what did you find it to be?

2009 ZO6
Reply




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