How to code a battery on OBD11

[LeonFR24]

Hello all was just wondering how to code a battery with obd11 please

 

[cairus]

Control unit 19... Adjustment... Battery adjustment

 

[LeonFR24]

would that clear fault codes that were on my car before i put the new battery in?

 

[tracktoy]

Depends on what fault codes you have please share what codes you have.

 

[LeonFR24]

Depends on what fault codes you have please share what codes you have.

 

[tracktoy]

Not one I have any experience in but I would not have thought a battery replacement would cure this.

i saw this article (granted for Audi) but a lot of the web pages talk about wiring / sensor issues.

Hopefully somebody who know these codes can confirm

 

[LeonFR24]

Not one I have any experience in but I would not have thought a battery replacement would cure this.

i saw this article (granted for Audi) but a lot of the web pages talk about wiring / sensor issues.

Hopefully somebody who know these codes can confirm

Because I have replaced the battery but do I need to code it for the faults to now go away

 

[LeonFR24]

where can i find the serial number on a Yuasa battery?

 

[tracktoy]

Yes I would always code in a new battery, this tells the charging system you have a new battery and therefore charges (over time) differently.

With regards to the serial number all that is important is that it is one character different to the current one so just add 1 to the number you allready have and it will be fine.

As per my previous post I dont know this issue but suspect that once you have coded and tried to clear the errors they will come back as there is a wiring problem and a new battery wont help, but hopefully somebody who has dealt with this issue before can confirm.

 

[LeonFR24]

Yes I would always code in a new battery, this tells the charging system you have a new battery and therefore charges (over time) differently.

With regards to the serial number all that is important is that it is one character different to the current one so just add 1 to the number you allready have and it will be fine.

As per my previous post I dont know this issue but suspect that once you have coded and tried to clear the errors they will come back as there is a wiring problem and a new battery wont help, but hopefully somebody who has dealt with this issue before can confirm.

Okay because I’ve had it coded and the faults are still showing up so at this point it’s got to be a wiring issue

 

[tracktoy]

Okay because I’ve had it coded and the faults are still showing up so at this point it’s got to be a wiring issue

Or it could just be a sensor that has failed.

 

[LeonFR24]

Or it could just be a sensor that has failed.

Do I need to take the car for a good run do you think now I’ve coded the battery?

 

[cairus]

Even if the battery were incorrectly coded, it would be the smallest problem. 98% of the time, the error has nothing to do with the battery.

 

[LeonFR24]

Even if the battery were incorrectly coded, it would be the smallest problem. 98% of the time, the error has nothing to do with the battery.

So most likely a wire or sensor then?

 

[cairus]

 

[pedrovian]

My bad I suppose, I just bought a new battery for my 1.4 ECO TSi not realising that it would need reprogramming. Tried it, starts fine, but loads of errors and stuff not working. So had to put the old one back as I have no means of reprogramming it myself - anyone know where I might get it done near Sidcup, preferably not a main dealer for obvious reasons?

 

[tracktoy]

Take the car for a drive 10 minutes and then off on again and see if errors go first

 

[Saltypotato]

My bad I suppose, I just bought a new battery for my 1.4 ECO TSi not realising that it would need reprogramming. Tried it, starts fine, but loads of errors and stuff not working. So had to put the old one back as I have no means of reprogramming it myself - anyone know where I might get it done near Sidcup, preferably not a main dealer for obvious reasons?

No need to do any programming. I changed my battery and had all sorts of errors too but once I drove it for a while everything went away.


Sent from my iPhone using Tapatalk

 

[tracktoy]

There is lots of information on the web and OBD11 / VCDS / SCN forums that fully support coding new batteries.

Agreed you wont see any issues if you don't code it BUT the car's electronics system will not know that you have a new battery so will have the incorrect charging model which in turn should lead to shorter life span.

But that's my opinion