Q7 MK 1 Discussion Discussion forum for the Audi Q7 SUV built from 2005 to 2015

Battery controller module problem

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Old Mar 8, 2022 | 04:46 PM
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Default Battery controller module problem

Hey folks
now since I had that slow crank and not starting issue I found it’s most likely starter and the battery is not in a good health
now if I try to connect VCDS it doesn’t get response from the battery controller module gateway 61
anyone had this problem and fixed
do I have to replace the Bcm and code it or just replace the new battery and it will start communicating?
year 2013
battery not enough cca
alternator is working good tested


Last edited by Raj800; Mar 9, 2022 at 10:01 AM.
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Old Mar 9, 2022 | 05:18 AM
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Don't know if this will help, but I recently read through a thread on a similar issue for Audi A5.....link below....hopefully same issue....

https://www.a5oc.com/threads/vcds-61...troller.69537/

Last edited by testarossaguy; Mar 9, 2022 at 05:52 AM.
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Old Mar 9, 2022 | 08:40 AM
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Originally Posted by Raj800
Hey folks
now since I had that slow crank and not starting issue I found it’s most likely starter and the battery is not in a good health
now if I try to connect VCDS it doesn’t get response from the battery controller module gateway 61
anyone had this problem and fixed
do I have to replace the Bcm and code it or just replace the new battery and it will start communicating?
.

What year Q?
The Ross-Tech Wiki is a great resource, tells you that new Q7's do not have module 61, the battery stuff is moved to module 19-CAN Gateway.

Audi Q7 (4L) - Ross-Tech Wiki
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Old Mar 9, 2022 | 09:18 AM
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Originally Posted by Pothole5000
.

What year Q?
The Ross-Tech Wiki is a great resource, tells you that new Q7's do not have module 61, the battery stuff is moved to module 19-CAN Gateway.

Audi Q7 (4L) - Ross-Tech Wiki
hey mate it’s 2013
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Old Mar 9, 2022 | 09:19 AM
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Originally Posted by testarossaguy
Don't know if this will help, but I recently read through a thread on a similar issue for Audi A5.....link below....hopefully same issue....

https://www.a5oc.com/threads/vcds-61...troller.69537/
thanks mate I will
have a look
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Old Mar 9, 2022 | 09:20 AM
  #6  
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Let me find out where is that Bcm located in 2013 though
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Old Mar 9, 2022 | 11:24 AM
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My 2014 is under 19-CAN Gateway, I would be all the 2011+ facelift Q7's are that way.

Halfway down this page is how to do it in the 19 module.
Battery Replacement - Ross-Tech Wiki
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Old Mar 14, 2022 | 08:19 PM
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Originally Posted by Pothole5000
My 2014 is under 19-CAN Gateway, I would be all the 2011+ facelift Q7's are that way.

Halfway down this page is how to do it in the 19 module.
Battery Replacement - Ross-Tech Wiki
perfect mate fixed battery coding enter I didn’t have the the serial no of the battery but change the old one with a digit and saved
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