Adblue fault?

[VWDAZ71]

What can you all tell me about the following? What’s it going to cost me?
Got the yellow engine light on my T6.1 Caravelle.
Plugged in my OBD11 and this came up:

 

[VWDAZ71]

Now says low pressure too!

and also have this fault:

 

[Sasquatch]

How old is the vehicle?

 

[VWDAZ71]

2022

Why does that matter?

 

[mmi]

Would be helpful to know which engine, and the fault codes as they are blurry in the pictures.

Please post
OBDeleven > Control Units > Engine > Info

Now says low pressure too!

Any more details - fault code please?

 

[Sasquatch]

2022

Why does that matter?

Because sometimes a tired battery can throw up spurious faults that otherwise appear unconnected.

It may still start the vehicle OK, but the system is very sensitive to the correct voltage and can throw a sulk. A proper drop-test costs nothing, and its always worth checking the basics before getting excited and chasing codes.

 

[VWDAZ71]

It’s a DMZA engine. Fault code is P204B00 for the
Reductant Pressure Sensor Circuit Range/Performance fault.
Had a battery replacement and coded in recently as original battery was a bit past its best. Fault was there before battery change and after. I have cleared the fault a few times but it soon comes back.

…door pinch sensor fault code is B1158FO

 

[Sasquatch]

That's hopeful, but drop test the new battery. Don't presume it's not duff simply because you've just purchased it.

 

[mmi]

P204B00 for the
Reductant Pressure Sensor Circuit Range/Performance fault.

P204B 00 - Reductant Pressure Sensor Circuit - Implausible Signal

It’s a DMZA engine.

Well, yes, but on T6.1 there are at least four variants of DMZA engine, many of them have even got software patches to cure various issues.

Please post
OBDeleven > Control Units > Engine > Info

its always worth checking the basics before getting excited and chasing codes.

True. However, I believe if we only could have seen the "freeze frame" snapshot at the moment of the fault we probably could have ruled out the battery here. As well as would have seen what was the pressure triggering the fault.