New battery installed getting error codes

When replacing any batteries, you should always perform an adaptation using either vcds, or obd11/carista.

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@jiannu How do you perform an adaptation using carista? Just would like to know for future. Thanks

I don’t know Carista but set battery to new capacity & type (EFG VS AGM) and increment serial number by 1 to get car to recalibrate to new battery.

Kuljit Singh said:

@jiannu How do you perform an adaptation using carista? Just would like to know for future. Thanks

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You can't. Carista can't do coding or adaptations. It only does the bare minimum fault codes (reads and resets, but won't give you any info on the fault codes, or allow you to access any additional diagnostic data stored with the codes).

I wouldn't expect the lack of adaptation to give error codes in other systems. Most likely, they were confused by poor power quality from to the battery saver device. It may be better just to disconnect the battery for 5 minutes and then reconnect it. But before you do this, use a suitable tool to clear the fault codes (carista will do this).

Battery adaptation is necessary if you have changed the specification of the battery, as different types of battery require slightly different charging schemes. You will also need an adaptation if the old battery was faulty, as once the ECU diagnoses a bad battery it will switch to safe mode charging, and will not go back to normal, until a new battery is coded in.

All the smart charging technology and the OEM 'quality' battery still fails in an unreasonably short time, then this coding nonsense to change a duff battery that is 'special' and probably three times the price of a normal car battery.
The world has gone mad.

Stop start batteries are manufactured differently from that of 'normal' ones, add in mild hev and unfortunately this is where we are.
Once upon a time we could set the ignition timing with a rod and fag paper but things have moved on...

At least my super fuel efficient car averages 29.936 mpg instead of a horrendous planet killing 29.872 mpg it would probably return without all this tech wizardary. That will offset the repair bill for an expensive battery/coding/warn out starter when it needs replacing.
But as you say, that's progress...