2021 VW Crafter electrical issue no wipers no horn no indicators

[Will181]

I am having some issues with a 2021 VW crafter

The battery died a few months back and since changing the battery the wipers, horn and indicators don’t work.

I can activate all of these using VCDS so they work just not from the switches.

I have several fault codes mainly relating to can bus network.
Other issues - none of the keys work in ANY door. However both keys work in the ignition barrel


I’m thinking the culprit is either BCM or possible ignition barrel as I suspect this has been changed and could have been changed for a cheap one? Just a thought
Could it be steering column control module?


I have done a parasitic draw test and am getting 1A so there is obviously something drawing power. I’m unsure if this is a symptom of a faulty BCM or the cause of a faulty BCM.

Any thoughts on the matter are much appreciated

Scan attached - ROD files not updated so you have to search the codes to get the written error - please no comments saying it’s a non genuine VCDS software

Many thanks

 

[rod_vw]

Any chance of uploading the scan as a file to make it more readable.

Also what faults remain if you clear them all and drive the van for a mile or two? It's my guess that some of those faults are a result of low volts if you've had battery problems.

Parasitic draw will be significant until the van has been undisturbed for quite a while as lots of modules stay active, that's why the engine battery runs low if the vehicle is unlocked, opened, closed and relocked often without running the engine.

Others with much more knowledge than me will no doubt soon be along to offer their thoughts.